| Issue ID | 1103349 |
| Internal NHTSA # | 10628347 |
| Manufacurer | Hyundai Motor America |
| Brand | HYUNDAI |
| Model | SONATA |
| Model Year | 2011 |
| File date | 23/08/13 |
| Component | ENGINE |
| Product type code | VEHICLE |
| Description of the problem | In the winter once, car wouldn't start and it took a few minutes to get it started. I brought it in and they said it was fine. In april it started making a terrible noise while idling and accelerating. I took it to the dealer and they changed the oil and the noise went away for a couple months. Noise came back and the engine light came on. Now they are stating there is sludge in the engine and unless i have proof of all my oil changes they are not going to honor my warranty. I have changed the oil every 3500-6,000 miles religiously. I am not sure how the engine fails at 50,000. I purchased this car specifically for the warranty and now they are backing out. |
| Vehicle Mileage at Failure | 50000 |
| Number of Occurences | 1 |
| Source of the issue | NHTSA WEB SITE |
| City and State | HANOVER PARK, IL |
| VIN pattern | XXXXXX |
| 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 | 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 | |
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| 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 | |
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| Dealer's state code | |
| Dealer's ZIP code |