| Issue ID | 1005914 |
| Internal NHTSA # | 10537116 |
| Manufacurer | Hyundai Motor Company |
| Brand | HYUNDAI |
| Model | SONATA |
| Model Year | 2009 |
| File date | 06/07/09 |
| Component | SERVICE BRAKES |
| Product type code | VEHICLE |
| Description of the problem | Erratic shifting. Sometimes lurches forward into a higher gear when coming to a stop, nearly causing me to hit car ahead of me. Also front brake rotors are warped causing rumble. I am an exceptionally conservative driver, mildly accelerates and brakes gradually well ahead of stopping. I had the computer upgrade that was supposed to correct the transmission problem shortly after purchasing car at suresky in goshen, ny. This failed to correct problem and i don't have the time nor want to continually spend my saturdays sitting for hours in the service area waiting room. I have read many similar complaints online and it seems that hyundai chooses not to address this problem. This is my third and will be the last hyundai purchase. |
| Vehicle Mileage at Failure | 50 |
| Number of Occurences | 1 |
| Source of the issue | NHTSA WEB SITE |
| City and State | GREENWOOD LAKE, NY |
| VIN pattern | 5NPET46C79HXXXXXX |
| Was vehicle invloved in a crash? | N |
| Was vehicle involved in a fire? | N |
| Was incedent reported to police? | N |
| Was medical attention required? | |
| Was part original equipment? | |
| No. of injured persons | 0 |
| No. of fatalities | 0 |
| Date of purchase | 07/08/26 |
| Was original owner? | N |
| Anti-lock brakes | N |
| Cruise control | N |
| Number of cylinders | 4 |
| Drive train type | |
| Transmission type | |
| Vehicle speed | 45 |
| 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 |