| Issue ID | 1552960 |
| Internal NHTSA # | 11193769 |
| Manufacurer | Hyundai Motor America |
| Brand | HYUNDAI |
| Model | SONATA |
| Model Year | 2014 |
| File date | 22/03/19 |
| Component | ELECTRICAL SYSTEM |
| Product type code | VEHICLE |
| Description of the problem | The software update per hyundais "953" service campaign, when activated, reduces engine performance which could lead to accidents (due to insufficient acceleration, etc.). I had the recent engine software update per hyundai's 953 campaign. On 3/22/19, i exited a highway and slowed down prior to merging onto the next road. I needed to accelerate, however my engine bogged and hesitated significantly. As such, another car quickly approaching had to break heavily to avoid a collision with my car. I looked down and observed my engine light flashing. I took the car in to action hyundai (millville, nj), and they stated that the newly installed software had detected issues with my engine and automatically placed my engine in this low-power mode. I have since learned that i will be receiving a warranty engine replacement. |
| Vehicle Mileage at Failure | 68000 |
| Number of Occurences | |
| Source of the issue | NHTSA WEB SITE |
| City and State | MALAGA, NJ |
| VIN pattern | 5NPEB4AC9EHXXXXXX |
| 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 | 25 |
| 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 |