| Issue ID | 1501728 |
| Internal NHTSA # | 11132911 |
| Manufacurer | Hyundai Motor America |
| Brand | HYUNDAI |
| Model | SONATA |
| Model Year | 2012 |
| File date | 30/09/18 |
| Component | ENGINE |
| Product type code | VEHICLE |
| Description of the problem | After driving for a few minutes on highway, my 2012 sonata hybrid will start to jump and buck. It slowly loses power and when it reaches lower speeds (under 40 mph) as i try to accelerate it will feel like it's trying to catch the next gear but won't. I will continue to lose power so i have to try to leave highway or pull over, which can be dangerous on a high speed road. It has happened three times since august 2018. Just took back to dealership but first two times they said they could not replicate problem while test driving it and all diagnosis indicated the car is fine. I see in some web sites that other users nation-wide have had the very same problem but with no resolution at hand. This is a very concerning safety issue as the last time it happened the car behind me almost run into me as my car lost power and speed rapidly and started to buck/stutter. |
| Vehicle Mileage at Failure | 105000 |
| Number of Occurences | |
| Source of the issue | NHTSA WEB SITE |
| City and State | GREENWOOD, IN |
| VIN pattern | KMHEC4A4XCAXXXXXX |
| Was vehicle invloved in a crash? | N |
| Was vehicle involved in a fire? | N |
| Was incedent reported to police? | N |
| Was medical attention required? | N |
| Was part original equipment? | |
| No. of injured persons | |
| No. of fatalities | |
| Date of purchase | 07/08/26 |
| Was original owner? | N |
| Anti-lock brakes | N |
| Cruise control | N |
| Number of cylinders | |
| Drive train type | |
| Transmission type | |
| Vehicle speed | 75 |
| DoT tire identifier | |
| Tire size | |
| Location of tire code | |
| Type of tire failure code | |
| Was defective tire repaired? | |
| Date of manufacture | |
| Type of child seat code | |
| Type of restraint | |
| Dealer's name | |
| Dealer's telephone number | |
| Dealer's city | |
| Dealer's state code | |
| Dealer's ZIP code |