{"count":51,"message":"Results returned successfully","results":[{"odiNumber":11755097,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"05/23/2026","dateComplaintFiled":"08/05/2026","vin":"1GT49REYXMF","components":"SERVICE BRAKES","summary":"The left rear internal \"top-hat\" parking brake shoes suffered a total manufacturing bonding failure, causing the friction lining to completely delaminate and detach from the metal backing plates inside the rotor hub. This triggered Diagnostic Trouble Code (DTC) C060B (Left Park Brake Actuator Circuit). The failed components were replaced by the servicing facility and are unavailable, but the official dealer diagnostic scan sheet and itemized repair invoice are preserved and available for inspection upon request.  Safety was compromised in two ways. First, the mechanical failure completely disabled the electronic parking brake system, forcing a heavy-duty truck to rely exclusively on the transmission's parking pawl to remain stationary. This creates a severe rolling vehicle hazard, especially on inclines or when hauling/towing heavy loads. Second, when these shoes disintegrate, the loose friction debris trapped inside the enclosed drum can shift, wedge, and cause a sudden mechanical wheel lockup or severe brake dragging at highway speeds, threatening vehicle control.   The problem was officially confirmed and diagnosed by an authorized General Motors dealership service center. The technician scanned the vehicle, retrieved DTC code C060B, and confirmed upon inspection that the internal parking brake shoes had completely disintegrated. There were absolutely no physical symptoms, abnormal noises, dragging sensations, or brake pedal changes prior to the failure, as the parking brake shoes sit isolated inside the rotor hub. The issue appeared suddenly on May 23, 2026, when the vehicle immediately displayed a parking brake malfunction warning lamp on the instrument cluster dashboard and completely refused to engage the electronic parking brake.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11753689,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"07/26/2026","dateComplaintFiled":"07/30/2026","vin":"1GT49REY2MF","components":"FUEL/PROPULSION SYSTEM","summary":"After finishing a long drive south, I shut the engine off and a yellow engine code popped on.  I connected my computer to it and revealed a P129F code (fuel pump control module).  I have noticed that other GMC models have been included in a recall concerning this problem.  The 2021 GMC 2500 Denali should be also since it is the same problem.  This needs to be covered by the manufacturer since it is a constant problem.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11746749,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"12/16/2025","dateComplaintFiled":"06/26/2026","vin":"1GT49MEY3MF","components":"POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM","summary":"I am reporting repeated failures involving both the transmission and diesel emissions (DEF) system on my 2021 GMC Sierra 2500HD Denali equipped with the 6.6L Duramax diesel engine and Allison 10-speed automatic transmission.  While under warranty, the truck required replacement of the aftertreatment fuel injector and later the Reductant Control Module due to DEF/emissions system failures. General Motors also completed recall-related transmission software updates on the vehicle.  At approximately 154,833 miles, the transmission began shifting improperly, set transmission fault codes, and required complete replacement at my expense.  Less than 5,000 miles later, the vehicle again experienced a \"Service DEF System\" warning with multiple diagnostic trouble codes. Repairs required replacement of the DEF tank, DEF heater assembly, and NOx sensor.  These repeated failures involve major drivetrain and emissions components on a heavy-duty truck. DEF system failures can place the vehicle into reduced-power (derate) mode, limiting vehicle performance and creating potential safety concerns while driving or towing.  I am submitting this complaint so these failures can be documented as part of NHTSA's evaluation of similar vehicles.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11741364,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"04/12/2026","dateComplaintFiled":"06/01/2026","vin":"1GT49REY1MF","components":"POWER TRAIN","summary":"We keep getting an error message that shows we need to service DEF SYSTEM, it also started to limit my MPH and is now locked at 55 MPH. initial check of the DEF SYSTEM shows a malfunctioning module. it has been happening over the last year to 18 months. they would reset it or it would sometimes go away on its own after having to drive it in order for the error to clear.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11733416,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"04/23/2026","dateComplaintFiled":"04/23/2026","vin":"1GT49REY6MF","components":"STRUCTURE","summary":"The contact owns a 2021 GMC Sierra 2500.  The contact stated that on several occasions, the automatic power side-out step failed to extend as designed. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 93,726.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11733017,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"04/22/2026","dateComplaintFiled":"04/22/2026","vin":"1GT49REY1MF","components":"UNKNOWN OR OTHER","summary":"XXX Power Assist Step Reversing  I have a 2021 GMC Sierra 2500HD that the local dealership (Ozark MO 65714) is stating has expired and not covered by the warranty.  I researched online and as I understand this recall falls under SAFTEY recalls and is to be fixed and doesn't expire?  It requires no parts but the reprogramming of the K4 Assist Step Control Module.  What is my next step or recourse?","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11728457,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"01/01/2023","dateComplaintFiled":"04/01/2026","vin":"","components":"ENGINE","summary":"The contact owns a 2021 GMC Sierra 2500. The contact stated that while driving at 55 MPH, the vehicle stalled unexpectedly. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed, and determined that the engine needed to be replaced. The engine was replaced; however, the failure recurred. While at a stop and attempting to drive around a curve, the vehicle stalled. No warning lights were illuminated. The vehicle was taken to the local dealer, where it was diagnosed with engine failure. The vehicle was not repaired. The failure mileage was approximately 77,000. The VIN was not available.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11726714,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"03/05/2026","dateComplaintFiled":"03/24/2026","vin":"1GT19PE72MF","components":"POWER TRAIN","summary":"While driving on the highway at normal speed, my vehicle was operating completely normally with no warning lights, messages, or prior issues. Without any warning, the vehicle suddenly lost the ability to accelerate and felt as if it had been shifted into neutral. I immediately had to pull over to the side of the highway, as this created a dangerous situation with surrounding traffic. The vehicle had to be towed to a mechanic. Upon inspection, I was informed that a coolant line connected to the transmission had completely blew off, causing a rapid loss of transmission fluid and resulting in total transmission failure. I was told this was not due to a rusted or deteriorated clamp, but rather a sudden component failure. This vehicle has been meticulously maintained and I have owned it for less than one year. There were no prior symptoms, leaks, or warning signs leading up to this incident. This appears to be a sudden and unexpected mechanical failure, not caused by neglect or misuse. The loss of power while driving at highway speed posed a serious safety risk to myself and others on the road.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11715295,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"01/26/2026","dateComplaintFiled":"02/03/2026","vin":"1GT19PE73MF","components":"ENGINE","summary":"80,000 Miles, complete engine break down. 12,000 to repair","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11709159,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"10/01/2025","dateComplaintFiled":"01/06/2026","vin":"1gt49pey5mf","components":"EXTERIOR LIGHTING","summary":"My right headlamp/ turn signal assembly began flashing at random intervals. The high beam would come on and off randomly. The entire assembly would randomly flash along with the turn signal. The headlamp would go on and off randomly. This included switching between setting. High beam, low beam, daytime running light, and completely off with no warning. This causes blinding conditions for oncoming drivers, loss of visibility for driver, and loss of visibility during inclement weather due to high beam coming on and off, then entire unit turning off. As of right now, the vehicle is undrivable due to incorrect lighting, and flashing lights.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11703711,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"11/30/2025","dateComplaintFiled":"12/08/2025","vin":"1GT39LE73MF","components":"POWER TRAIN","summary":"Pulling into a driveway and the truck made a loud clunk and the check engine light, traction control light, and a reduced engine power light came on and the truck came to an abrupt stop. When the gear shift was put into reverse or any forward gear the truck would rev up without touching the gas pedal. The left rear wheel locked up. After paying over $700 in tow bills to get the truck towed to our house and then to the dealer we were told that the transmission had a catastrophic internal failure. This truck only has 82,000 miles on it and is a 2021!","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11696338,"manufacturer":"General Motors, LLC","crash":true,"fire":false,"numberOfInjuries":1,"numberOfDeaths":0,"dateOfIncident":"10/08/2025","dateComplaintFiled":"10/29/2025","vin":"1GT49REY3MF","components":"POWER TRAIN","summary":"The contact owns a 2021 GMC Sierra 2500. The contact stated that while driving at 50 MPH, the contact was pulling a trailer that he had loaded, and he drove around a curve, the gear shifted down independently, and the trailer pushed the vehicle off the right side, causing him to crash into a post and embankment. The contact mentioned he was able to shift the gear into Four Wheel Drive to get back on the road. The contact mentioned he pulled over to the right side of the road, exited the vehicle to inspect, and noticed damage to the vehicle and the trailer.  The contact stated no air bag deployed. The contact stated that he sustained injuries left arm and neck, causing his muscles to tighten. No medical attention was required. The contact stated no police report was filed. The contact mentioned that the vehicle was previously repaired for a manufacturer's recall with the transmission, but failed to prevent the failure. The contact was relating the failure to NHTSA Campaign Number: 24V797000 (POWER TRAIN). The vehicle was serviced by the dealer, but the remedy failed to repair the vehicle. The contact stated that the failure was not diagnosed by a dealer or independent mechanic. The manufacturer was not notified of the failure. The approximate failure mileage was 78,000.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11692084,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"10/06/2025","dateComplaintFiled":"10/08/2025","vin":"1GT19ME78MF","components":"SERVICE BRAKES","summary":"2021 GMC Sierra 2500HD 6.6L gas 6 speed automatic transmission W/4wd  After a brake service job the vehicle will randomly kick on the traction control/ABS and the right front brake will lock up. The steering wheel jerk is violent enough to remove the wheel from the drivers hands.   No Traction control or ABS lights flash on the dash when this occurs and it has caused the vehicle to veer into oncoming traffic and also off the road.   The dealer was unable to recreate the issue nor are there any stored codes/issues found when having the truck diagnosed.   ABS and speed sensor wires have been reviewed and none were damaged during the brake job. All wheel speed sensors are functional and reading when the issue happens. This issue happens during dry or wet conditions and is random without warning.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11686699,"manufacturer":"General Motors, LLC","crash":true,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"01/16/2025","dateComplaintFiled":"09/11/2025","vin":"1GD28LE74MF","components":"ELECTRICAL SYSTEM","summary":"When I\u2019m in reverse the up the cameras turn off. On one incident I was backing up and the camera turned off causing me to back up into the wall of my house","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11683220,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"07/26/2025","dateComplaintFiled":"08/26/2025","vin":"1GT49PEY6MF","components":"LATCHES/LOCKS/LINKAGES","summary":"The contact owns a 2021 GMC Sierra 2500. The contact received Manufacturer's Recall Number: N232426400, for water intrusion into the electronic gate-release switch. The vehicle was repaired. The contact stated that six months after the vehicle was repaired, the tailgate failed to operate as intended. While at the residence, the taillights and headlights were flashing. The contact also became aware that the tailgate had unlatched independently while the vehicle was parked. The message \"Integrated Tailgate Open or Integrated Tailgate not Latched\" was displayed. The contact stated that there was an abnormal clicking sound coming from the actuator when the tailgate opened independently. The vehicle was taken to the dealer, where it was diagnosed that there was water in the switch. The dealer informed the contact that the repairs were already made and, due to the water intrusion into the switch, the dealer refused to redo the repair under the previous recall. The vehicle was repaired. The manufacturer was notified of the failure, and denied assistance since the recall repair was already performed. The failure mileage was approximately 53,000.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11662387,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"03/01/2025","dateComplaintFiled":"05/21/2025","vin":"1GT19LEY4MF","components":"SERVICE BRAKES","summary":"Parking brake locking up. There is recall on the brake module for my year make and model but my vehicle isn't on the list and I feel it should be. I'm having the same issues as they are. I can't drive it until it is fixed. Very dangerous.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11656282,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"04/02/2025","dateComplaintFiled":"04/23/2025","vin":"1GT49PEY6MF","components":"LATCHES/LOCKS/LINKAGES","summary":"The contact owns a 2021 GMC Sierra 2500. The contact stated that the VIN was included in NHTSA Campaign Number: 24V060000 (Latches/Locks/Linkages) and the main exterior touchpad switch assembly was replaced. The contact stated that after the recall repair the second exterior touchpad switch assembly suddenly short circuited and caused the trunk to open unintendedly. The vehicle was returned to the dealer who stated that that only one exterior touchpad switch assembly was replaced, despite the remedy stating that the exterior touchpad switch assemblies would be replaced. The vehicle was not repaired. The manufacturer was informed of the failure and opened a case. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was 55,700.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11651470,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"03/15/2025","dateComplaintFiled":"03/29/2025","vin":"1GT59LE77MF","components":"POWER TRAIN","summary":"Radiator hose connection broke and loose fluid and  transmission got broken","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11649449,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"08/12/2024","dateComplaintFiled":"03/20/2025","vin":"1GT39MEY0MF","components":"POWER TRAIN","summary":"While driving down the highway pulling a trailer the truck started to slow down rapidly.  We were able to pull to the side of the road before the truck came to a complete stop on its own.  From that point forward, we could not get the truck to move forward even in 4WD.  Ended up towing the truck back and a repair shop determined the transmission needed replaced.  About 4 months later, we received notice of a recall describing a similar scenario.  I submitted the invoice and documentation to GM, but my claim was denied because the codes and symptoms did not match the criteria for the recall.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11648242,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"02/03/2025","dateComplaintFiled":"03/13/2025","vin":"1GT49PEY0MF","components":"POWER TRAIN","summary":"Hard shifting. Back wheels locking up","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11643184,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"01/30/2025","dateComplaintFiled":"02/17/2025","vin":"1GT49RE71MF","components":"EXTERIOR LIGHTING,LANE DEPARTURE","summary":"Known issue and has been attributed to a manufacturing defct,  but no recall- Leaking headlight caused damage to headlight- now turn signal and headlight do not work.  Entire assembly needs to be replaced, GM / Extended Warranty Company will not cover, this safety part.  Head light and turn signal were working on the way to the dealer, 1 month later when we picked it up - Right turn signal malfuction reading appeared on dash, headlight blinking and will not work.  Picked up on Friday 1/30/25, and made an appointment for the following Wednesday to take it back in.  Was told by dealer today that the replacement will not be covered and will cost $2100.00 to replace.  This is a safety part and the truck can not be driven legally or safely without both headlights working.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11642324,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"02/12/2025","dateComplaintFiled":"02/12/2025","vin":"1GT49PEY3MF","components":"EXTERIOR LIGHTING","summary":"Headlight vent failed. Hid control board filled up with moisture. Headlight is flashing like emergency vehicle if it turns on at all.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11637853,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"12/20/2024","dateComplaintFiled":"01/23/2025","vin":"1GT49REY7MF","components":"EXTERIOR LIGHTING","summary":"The front left headlamp assembly low beam light unexpectedly began to flicker repetitively until the vehicle was turned off. In addition, the left front turn signal was failed, but an indication of the failed turn signal was not always present. The headlamp assembly was taken in for replacement at a local GMC dealership promptly due to safety concerns of operating the vehicle on public roadways with this condition.  The safety of others was at risk due to the strobing effect of the flickering lights and not being able to drive the vehicle during conditions where headlights are necessary. The flickering/strobing condition of the headlamp was highly distractive and puts other drivers are risk. In addition, due to the natural height of the vehicle the cast of the beam is closer to the rear view mirror height of the majority of vehicles.  The problem was confirmed by a local GMC dealership and was identified as a faulty headlamp assembly.  The vehicle was not inspected by any other party besides the dealer who performed the diagnosis and repair.  There were no symptoms of warning messages prior to the failure.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11633825,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"01/18/2024","dateComplaintFiled":"01/03/2025","vin":"1GT49REY3MF","components":"ELECTRICAL SYSTEM,EXTERIOR LIGHTING","summary":"Headlights and turn signals failed.  Flickering of various lights (Daytime running lamp, low beam, high beam, turn signals) followed by total failure.  3700 dollar repair at dealer to replace both headlamp assemblies.  Barely over miles of warranty, but still in the 3 year warranty time period.  Not having forward lighting is of course a major safety issue.  Vehicle should be recalled.  Many others are having the issue.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11631610,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"11/28/2024","dateComplaintFiled":"12/19/2024","vin":"1GT49PEY7MF","components":"POWER TRAIN,ENGINE","summary":"The contact owns a 2021 GMC Sierra 2500. The contact stated while driving 40-55 MPH, the vehicle started losing motive power. The contact stated while pulling into a nearby independent mechanic shop, the vehicle started jerking significantly and stalled midway. The check engine warning light was illuminated. The mechanic diagnosed the vehicle with transmission failure. The vehicle was towed to the residence. The local dealer and several unknown dealers were notified of the failure and informed the contact that the transmission assembly was not available and could not be ordered. The vehicle was towed to CJ's Transmission, where the transmission was taken apart. The mechanic determined that the transmission needed to be replaced. The vehicle was being repaired with a rebuilt transmission. The contact received notification of NHTSA Campaign Number: 24V797000 (Power Train); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure and offered a modest monetary compensation for the repair. The failure mileage was approximately 134,000. Parts distribution disconnect.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11628813,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"11/09/2024","dateComplaintFiled":"12/04/2024","vin":"1GT19ME70MF","components":"SERVICE BRAKES","summary":"Seems to be a known problem according to a google search but brake fluid leaking from brake pedal onto drivers floor mat. Seems to be a bad brake booster according to google and happening for some at a few weeks to a couple months old in the newer ones.  I noticed first on my truck around 58,000 miles.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11627389,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"11/21/2024","dateComplaintFiled":"11/26/2024","vin":"1GT49REY4MF","components":"ELECTRICAL SYSTEM,EXTERIOR LIGHTING","summary":"On 11/21/24 noticed passenger headlight day light running light flickering. On 11/22/24 right turn indicator intermittent fast blink, dash message stated turn indicator failure. Once home, inspected passenger headlight assembly. Found DRL, turn signal, and low and high beam head lights were inoperative. On 11/25/24 went to GMC dealer/service. Staff seemed aware of issues and stated they are common, that they carry the $1,400 sealed assebly in stock. Vehicle is 4 months over warranty, but only has 29,000 miles. There is no visible damage to the assembly,  but there is visible condensation inside the lens. GM has a published service bulletin, 01-08-42-001P, that specifically addresses this issue for my vehicle. The earliest date the issue could be diagnosed/service date is 12/10/24. A complete failure of this non-servicable headlight assembly is an absolute safety issue. Decreased daytime visability with the loss of one of two Daytime Running Lights, the lose of the front turn indicator to alert other drivers of my intentions, the lose of a set of low and high beam headlights. As mentioned, there assembies are a sealed LED light assembly. If any one of these lights fail, the only remedy is the replacement of the entire unit with a $1,400 part. GM has had multiple recalls of this same issue among their vehicle, but continues to produce the same failing pieces.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11624010,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"10/01/2024","dateComplaintFiled":"11/07/2024","vin":"1GT59NEY2MF","components":"LATCHES/LOCKS/LINKAGES","summary":"The contact owns a 2021 GMC Sierra 2500. The contact stated that no visible tailgate was attached, and the contact was unaware if the vehicle had been repaired under NHTSA Campaign Number: 24V060000 (Latches/Locks/Linkages); however, the recall had been marked as completed under the VIN. The vehicle was taken to a local dealer where they advised the contact that the recall repair was completed. The vehicle was taken to another local dealer, Littleton Chevy (851 Meadow St Littleton, NH 03561); for a second opinion and was informed that the recall repairs had not been performed. In addition, the contact stated that the tailgate was replaced with an after-market part due to backorder issues. The contact stated that there was no failure experienced with the original part. The manufacturer was made aware of the issue. The contact had not experienced a failure. The failure mileage was 125,000.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11623737,"manufacturer":"General Motors, LLC","crash":true,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"01/11/2024","dateComplaintFiled":"11/05/2024","vin":"1GT49REY0MF","components":"FORWARD COLLISION AVOIDANCE","summary":"I purchased a 2021 GMC Denali 2500 in December 2023.  A couple days after purchasing the vehicle I received a message on the dash saying the front camera was not working.  I took the vehicle into the dealership where they said they reset the computer and nothing was wrong with the vehicle.  One month later I was involved in a collision where a vehicle turned in front of my vehicle and the Automatic Emergency Braking failed to activate.  I applied the brakes but due to my delayed reaction time 1.5 seconds, I broadsided the small vehicle with my large truck.  Luckily the speed was only 20 mph and no one was hurt or killed.  At this time I did not know my vehicle was equipped with AEB.  In October I discovered through GM and a different dealership that my vehicle was equipped with Automatic Emergency Braking.  I have had several occasions when the AEB including the crash where the AEB should have activated but never did.  In 11 months I have never had the AEB activate.  I took the vehicle into the dealership where I bought the vehicle and they said their computer said everything was operating correctly.  The tech never drove the vehicle where the AEB should have activated.  I have driven many cars and even the same model vehicle as mine, so I know what the AEB feels like and my vehicle the AEB is not working.  The dealership told me to take the vehicle they checked everything GM told them to check.  When I talked to GM they told me to immediately take the truck to the dealership and the dealership did nothing.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11623113,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"07/19/2024","dateComplaintFiled":"11/01/2024","vin":"1GT19PEY6MF","components":"POWER TRAIN","summary":"The contact owns a 2021 GMC Sierra 2500. The contact stated while driving approximately 70 MPH, the vehicle lost motive power. The contact stated that the message \u201cVehicle will not Exceed 50 MPH\" was displayed. The vehicle was taken to a dealer and remained for over four months after being diagnosed that the solenoid valve and transmission needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 50,000.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11609562,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"07/22/2024","dateComplaintFiled":"08/19/2024","vin":"1GT59LEY1MF","components":"POWER TRAIN","summary":"The transmission started lurching and surging power while driving","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11608733,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"08/13/2024","dateComplaintFiled":"08/15/2024","vin":"1GT49REY1MF","components":"ELECTRICAL SYSTEM,ENGINE,FORWARD COLLISION AVOIDANCE","summary":"Smog system check and Engan warning light keeps come on.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11602713,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"09/01/2023","dateComplaintFiled":"07/16/2024","vin":"1GT49REY1MF","components":"LATCHES/LOCKS/LINKAGES","summary":"The contact owns a 2021 GMC Sierra 2500. The contact stated while driving approximately 25\u201335 MPH, the tailgate unlatched and opened unexpectedly. The contact stated that while the vehicle was parked, the tailgate opened independently. The contact stated that the tailgate down message was displayed after the failure. The vehicle was taken to an independent mechanic at a body shop, who determined that the failure was due to the touchpad. The vehicle was repaired. The vehicle was taken to a body shop, where it was replaced. The contact received notification of NHTSA Campaign Number: 24V060000 (Latches/Locks/Linkages); however, the part to do the recall repair was not yet available. The local dealer was not contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The failure mileage was approximately 49,000. Parts distribution disconnect.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11583160,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"04/01/2024","dateComplaintFiled":"04/15/2024","vin":"1GT49REY1MF","components":"EXTERIOR LIGHTING","summary":"3 year old truck. The left headlight enclosure gained water and caused the whole headlight system to have issues. Water caused the Headlights to Flash high beams (both), turn off and blinkers not to work. This defect the whole side that is effective.   This can cause other drivers or the owner to have an accident. 6 months later, Now the right side headlight is doing the same.  I\u2019m out of warranty with  only 40k miles. The seal is not strong enough to keep water out the enclosure.  This can also cause the whole light system to shut down while driving. Very dangerous especially at night.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11579498,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"03/20/2024","dateComplaintFiled":"03/26/2024","vin":"1GT49REY2MF","components":"STRUCTURE","summary":"My tailgate unexpectedly open as I was driving down the road. (2021 GMC 2500 Denali Sierra) This was the second time this has happened and lost things driving down the road. (3 propane tanks and a small grill the first and then an air compressor the second time)   Both times it happened I opened and closed the tailgate with the vehicle running.  Both times I was unaware of tailgate opening and did not notice until I got home.  The first time it happened I thought it was operator error but after this weekend, I looked into this and see there was a recall on it this month.  I still felt it was necessary to report incidents.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11576141,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"03/07/2024","dateComplaintFiled":"03/08/2024","vin":"1GT49MEY8MF","components":"ELECTRICAL SYSTEM","summary":"The harness that hooks to bumper plug for trailer lighting is not completely water tight. Allows water in and creates buildup that weakens the connection as well as allows the plug wire connection to snap out and push out from the pin.  Further inspection it was causing a short in the system. I attempted to clean and put some-electric grease on the plug to help clean it but then relaized 3 pins were broken and pushed back.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11574476,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"02/14/2024","dateComplaintFiled":"02/28/2024","vin":"1GT49PEY8MF","components":"ENGINE","summary":"The contact owns a 2021 GMC Sierra 2500. The contact stated that the vehicle was equipped with an engine block heater that he plugged into the vehicle when the weather was below 32 degrees to start the vehicle. The contact stated that he noticed that the engine block heater was causing the GFCI outlet in his residence, to experience an electrical short circuit. The dealer was notified of the failure and informed the contact that it was a known failure. An appointment was scheduled for diagnostic testing. The vehicle was not diagnosed or repaired. The contact related the failure to NHTSA Campaign Number: 19V328000 (Engine) however, the VIN was not included. The manufacturer was notified of the failure and a case was opened. The failure mileage was approximately 55,000.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11570651,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"02/02/2024","dateComplaintFiled":"02/07/2024","vin":"1GT49MEY8MF","components":"ELECTRICAL SYSTEM","summary":"While driving the entire dash cluster (speed,rpm etc) turns off entirely, reloads as if truck is just starting with all lights coming off and on, needles cycling max/min. Unable to recreate on command, multiple others reported same issue with no cause/cure listed.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11568867,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"01/28/2024","dateComplaintFiled":"01/30/2024","vin":"1GT49PEY8MF","components":"STRUCTURE,UNKNOWN OR OTHER","summary":"The tailgate latch is not waterproof, and opens on its own sometimes. this can allow things to fall out of your truck.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11559776,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"08/06/2023","dateComplaintFiled":"12/12/2023","vin":"1GT49PE78MF","components":"EXTERIOR LIGHTING","summary":"The driver side headlamp stopped working,  Condensate buildup may be a contributing factor.  No accident and vehicle is meticulously maintained.   No reason for lamp seals to be damaged or wear. Barely three years old and requires a replacement at $1400 for the part and another $1000 in labor.   Outside of 36000 mile warranty.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11557590,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"11/09/2023","dateComplaintFiled":"11/30/2023","vin":"1GT49PEY8MF","components":"PARKING BRAKE","summary":"The contact owns a 2021 GMC Sierra 2500. The contact stated that on several occasions while in park(P) with the parking brake engaged, the parking brake warning light was illuminated. The contact also stated that the parking brake would not disengage until the vehicle was shifted into reverse(R). The contact stated that he observed a loud banging sound coming from the rear of the vehicle when the parking brake was finally disengaged. The vehicle was taken to a dealer where it was diagnosed that the driver\u2019s side rear actuator needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 51,248.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11548799,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"10/06/2023","dateComplaintFiled":"10/07/2023","vin":"1GT49PEY3MF","components":"EXTERIOR LIGHTING","summary":"Passenger headlight light fills up with moisture resulting in the HID module filling up with water and shorting out. The high beam starts flashing when you try to use your turn signal and eventually the headlights completely stop working. Is a known problem, but GM won\u2019t do anything to help if you\u2019re outside of the 3year/36,000 mile warranty. Currently unable to get a new headlight because of the on going strike.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11526772,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"06/10/2023","dateComplaintFiled":"06/13/2023","vin":"","components":"POWER TRAIN","summary":"The owns a 2021 GMC Sierra 2500. The contact stated while driving 70 MPH, the RPM revved up to 6,000 RPM. Additionally, the vehicle lost motive power. The vehicle was taken to the dealer, who informed the contact that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 47,000. The VIN was not available.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11491956,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"04/05/2022","dateComplaintFiled":"11/02/2022","vin":"1GT49ME7XMF","components":"SERVICE BRAKES","summary":"The contact owns a 2021 GMC Sierra 2500. The contact stated while approaching a stop sign and depressing the brake pedal, the brakes were squeaking. The vehicle was taken to the dealer and the contact was informed that the brake pads needed to be replaced. The brakes on the vehicle were replaced but the failure reoccurred. The vehicle was taken to another dealer and the caliper on the front driver\u2019s side was replaced and the failure reoccurred. The vehicle was taken to another dealer who was aware of the issue however, there was no recall for the failure. The manufacturer was not contacted. The failure mileage was 800.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11478489,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"02/23/2022","dateComplaintFiled":"08/09/2022","vin":"1GT19PEY7MF","components":"AIR BAGS,SEAT BELTS","summary":"The \u201cService Safety Restraint\u201d alarm goes off continually on my 2021 GMC Sierra 2500HD AT4. The warranty is no longer valid as at the time of occurrence I was at 34,500 miles and when I took it in the warranty had expired  due to exceeding 36,000 miles. Extended warranties were not purchased and this began approximately 8-9 months after purchase.  The code given is \u201cb0014 Driver Seat Side Air Bag Deployment Loop\u201d with a description of high resistance in wiring or wiring harness. After much research I have found that many GMC 2021 vehicles and previous models have had this exact same issue. No dealership as of yet has offered to help or understand that this defect was of their own flawed design. The issue that I am having is exactly the same as other models such as the 2021 Yukon, Sierra 1500, Suburban and others.  This is a safety issue and only want GMC to account for their flaw.  I do not believe I should have to pay for a design flaw or equipment malfunction that is well known amongst GMC vehicles. I am asking the NHTSA to help me in this matter and the many others who are having the same issue and for the manufacturer to be accountable for their own flaw.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11478289,"manufacturer":"General Motors, LLC","crash":true,"fire":true,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"08/02/2022","dateComplaintFiled":"08/08/2022","vin":"1GT59ME77MF","components":"AIR BAGS,STRUCTURE,UNKNOWN OR OTHER","summary":"Hit in the driver side tire, air bags didn\u2019t release. Truck then went up in flames.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11477615,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"07/01/2022","dateComplaintFiled":"08/04/2022","vin":"1GT49RE71MF","components":"STRUCTURE","summary":"when driving down the rode the center hood scoop blew off 0","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11464852,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"04/26/2022","dateComplaintFiled":"05/16/2022","vin":"1GT49PEY0MF","components":"ENGINE","summary":"Diesel Exhaust Fluid tank, high pressure","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11462517,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"04/23/2022","dateComplaintFiled":"04/27/2022","vin":"1GT49LEY9MF","components":"TIRES","summary":"LT245/75R17 I bought these tires on Walmart. com June 2021 and had Walmart install with road hazard and lifetime balance,  I returned to Walmart in April 2022 and was told I had a defective tire, that it was coming apart, I can see the fibers around the issue area and soft spongy for approximately 14 inches sounds like glue not sticking when I push around the bead area, Walmart told me it was a manufacturer defective tire and they included that on the work order and also told me to take tire and contact manufacturer which I did, I have spoken and also emailed with a Michael Dorr with Unicorn Tire. without any positive results only denied a claim. this tire needs to be Inspected and I want a new one, this for sure is defective.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"},{"type":"Tire","productYear":"9999","productMake":"TRAVELSTAR","productModel":"ECOPATH H","size":"LT245/75R17","manufacturer":"Unicorn Tire Corporation"}]},{"odiNumber":11441628,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"11/24/2021","dateComplaintFiled":"11/24/2021","vin":"1GT49PEY9MF","components":"SERVICE BRAKES","summary":"Brake pads have excessive squealing. Squealing implies incorrect pressure to rotor to stop the vehicle, which highly concerns me as an operator.   According to the dealer where I reported the issue, there is a technical bulletin that approves replacement of the brake pads for free if reported in first 7500 miles. My truck exceeded that mileage when I noticed the squealing. If this was a recall for the defective brakes, the dealer would cover the costs to repair, but not for a technical bulletin according to the service department, and confirmed by GMC.   I now have to pay $1500 to replace brakes on a new truck with 15000 miles on it, or risk my safety. I believe this should be a recall and appreciate any assistance in this matter.","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]},{"odiNumber":11398288,"manufacturer":"General Motors, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"02/24/2021","dateComplaintFiled":"02/28/2021","vin":"1GT49PEY5MF","components":"ENGINE,BACK OVER PREVENTION,FORWARD COLLISION AVOIDANCE","summary":"THE TRUCK IS PARKED AT DEALERSHIP","products":[{"type":"Vehicle","productYear":"2021","productMake":"GMC","productModel":"SIERRA 2500","manufacturer":"General Motors, LLC"}]}]}