NHTSA Complaint #11440307 — 2017 HYUNDAI ELANTRA

Abbreviated. Full description in files. Since July 2021, I have had intermittent issues with my 2017 Hyundai Elantra. When trying to accelerate, the car would struggle to move and feel like it was about to stall. The engine light would come on any time I would step on the gas. It was a danger should my car refused to accelerate while making a turn, merge, etc. On 8/31, I brought my car to Healey Hyundai. However, Healey could not fix the car, as the error codes were not in the car. On 9/6 I was able to drive to Healey Hyundai within the same day of the issue. The error code, a misfire on cylinder 2. On 9/16, Hyundai Motor Corp recognized there was a premature failure of the ignition coil on cylinder 2. A warranty repair was done to replace the ignition coil. Once fixed, a representative from Healey Hyundai acknowledge they had seen this issue before. They went so far as to warn me that the other ignition coils could go at any time. On 9/27 at 11 am, the issue occurred again and worse than I ever experienced it. The engine light turned on and my car struggled to move. For 15 minutes until I was able to safely stop. Once off, the light went away, and it appeared to operate normally. On 9/28 at 1 pm, I brought the car to Healey Hyundai again. It was 26 hours, 30 miles, and 4 starts since the issue occurred. However, the error codes were again missing from the car. Healey Hyundai was not able to reproduce. And while I have felt the car shutter and hesitate since, it is not enough for the engine light to turn on. The original ignition coils installed in the car are faulty. They overheat during normal use causing them to melt and warp. It also explains why the issue has decreased as the weather cools. Also alarming is the excessively short period of time error codes are stored in the computer. It is a matter of time till my car fails again and I am afraid for my safety when it does.