| Issue ID | 1520504 |
| Internal NHTSA # | 11157090 |
| Manufacurer | Hyundai Motor America |
| Brand | HYUNDAI |
| Model | SONATA HYBRID |
| Model Year | 2012 |
| File date | 08/12/18 |
| Component | POWER TRAIN |
| Product type code | VEHICLE |
| Description of the problem | This has been happening on a daily basis for at least the last 4 months, some days are worse than others. Seems like the trans computer cannot make up its mind to engage or disengage and create a 'power loss' or acceleration loss. The car then bucks and clunks for a few seconds until it figures out what its going to do. Happens in low engine temps, car has not reached 1/2 way temp for several months, always runs 1, 2, or 3 bars from cold, replaced thermostat, radiator fan stopped working and replaced that. Sometimes the car will over rev and then catch making the car lurch forward or backward. This happens usually at stop signs or stop lights, but the rpm have been buried at high while driving then drops rapidly. |
| Vehicle Mileage at Failure | 120000 |
| Number of Occurences | |
| Source of the issue | NHTSA WEB SITE |
| City and State | GOOSE CREEK, SC |
| VIN pattern | KMHEC4A49CAXXXXXX |
| 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 | 20 |
| 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 |