{"count":1,"message":"Results returned successfully","results":[{"odiNumber":11722792,"manufacturer":"Nissan North America, Inc.","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"02/01/2026","dateComplaintFiled":"03/08/2026","vin":"5N1DR2DM5LC","components":"ENGINE","summary":"I own a 2020 Nissan Pathfinder with approximately 55,000 miles. The vehicle repeatedly failed Indiana emissions testing because the oxygen sensor monitor would not set to \u201cready,\u201d despite multiple complete drive cycles and no check\u2011engine light or stored fault codes. A local shop performed diagnostics and found no issues. They reported that another 2020 Pathfinder came in the following week with the exact same problem. My vehicle was ultimately sent to a Nissan dealership, where they determined the upstream oxygen sensor had failed in a way that prevented the ECM from running the emissions monitor, yet did not trigger any diagnostic trouble codes. The repair required full sensor replacement at a cost of $1,450, not covered under warranty. The failure mode is concerning because: \u2022 The vehicle gives no warning to the driver. \u2022 The ECM blocks emissions readiness indefinitely. \u2022 The issue appears to be occurring in multiple 2020 Pathfinders. \u2022 Owners cannot legally renew registration without passing emissions. This may indicate a defective oxygen sensor or ECM logic issue affecting 2020 Pathfinders. I am filing this complaint so NHTSA can track the pattern and determine whether a broader defect investigation is warranted. Vehicle Details: \u2022 Year/Make/Model: 2020 Nissan Pathfinder \u2022 Mileage at failure: ~55,000 \u2022 No warning lights, no stored codes \u2022 Emissions monitor would not complete \u2022 Dealer confirmed sensor failure and replaced part Safety Concern: A failed emissions component that does not trigger a fault code may indicate a defect in the emissions control system or ECM logic. The lack of diagnostic warnings prevents owners from knowing there is a problem until the vehicle fails emissions testing.","products":[{"type":"Vehicle","productYear":"2020","productMake":"NISSAN","productModel":"PATHFINDER","manufacturer":"Nissan North America, Inc."}]}]}