{"source":"NHTSA vehicle owner complaint","officialApiUrl":"https://api.nhtsa.gov/complaints/odinumber?odinumber=11578977","retrievedAt":"2026-11-05T04:25:59.505Z","count":1,"results":[{"odiNumber":11578977,"manufacturer":"Hyundai Motor America","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"03/04/2024","dateComplaintFiled":"03/22/2024","vin":"KM8J3CA4XKU","components":"POWER TRAIN,VEHICLE SPEED CONTROL,ENGINE","summary":"I have a Hyundai Tuscon 2019, which was pre-certified by Hyundai. This particular car was part of a lawsuit because of a knock sensor issue. The lawsuit information is here: [XXX]   The knock sensor failing is not really what causes the safety issue. The engine symptoms when the sensor fails is the issue. The engine goes into \"safety mode\" which limits the car to a significant slower speed. The problem is that Hyundai has now tried to fix this issue twice on my vehicle, and the knock sensor continues to fail. To be clear, they've replaced the sensor twice. Based on the lawsuit, the court mandated them to fix the knock sensor. They have done that free of charge, but the sensor continues to fail. To me this sounds like a manufacture issue. It is incredibly dangerous when you're on a highway and the sensor fails. It happened to me, and it was almost catastrophic. The car slowed down and there is nothing you can do about it. I noticed there was something wrong very quickly and put my hazards on. If I didn't, I may not be writing you here. You could easily get into a significant accident, and from that could lead to injury or loss of life. I am asking for a review of this. I have my service records as well as recorded conversations with Hyundai corporate regarding this issue. Service records are attached.   I live very close to NHTSA HQ and willing to come in if necessary. To me, this is concerning enough for that.. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)","products":[{"type":"Vehicle","productYear":"2019","productMake":"HYUNDAI","productModel":"TUCSON","manufacturer":"Hyundai Motor America"}]}]}