NHTSA Complaint #11479402 — 2011 HYUNDAI SONATA

I would like to report a serious Safety Hazard. Hyundai Motor America replaced my 2011 Sonata's defective engine in January 2020. The new engine turned off on its own approximately 20 times without the "Check Engine" light turning on between August 2021 and January 2022. The "Check Engine" light did not turn on until January 24, 2022. I had my car towed to El Cajon Hyundai in August 2021 after the engine turned off on its own while my car was traveling more than 40 MPH. El Cajon Hyundai could not diagnose the cause of the problem in August 2021 because the "Check Engine" light never turned on each time the engine turned off on its own. I had to work when the non-flashing “Check Engine” light finally turned for three days starting on January 24, 2021. The engine turned off on its own approximately 20 more times from January 27, 2021 until July 22, 2022 without the “Check Engine” light turning on. The “Check Engine” light finally turned on again on July 22, 2022, but it was not for Crankshaft Position Sensor. I told the mechanic what my Sonata has been doing since August 2021 after he initially could not diagnose the problem. The mechanic checked the computer again and he was able to locate the Check Engine Light message for the Crankshaft Position Sensor that occurred on January 24, 2022. I paid El Cajon Hyundai $593.71 on July 25, 2022 and July 29, 2022 to replace the Crankshaft Position Sensor. Unfortunately, my car turned off on its own again on July 30, 2022 and August 13, 2022 after the new Crankshaft Position Sensor was installed. My 2011 Hyundai Sonata has been posing a serious safety hazard for me each time I turn the engine on since early August 2021. Hyundai Motor America is ethically and financially responsible for ensuring that my 2011 Sonata is safe to drive. I am also concern that this serious safety hazard may be impacting other Hyundai owners.