| Issue ID | 1550583 |
| Internal NHTSA # | 11192026 |
| Manufacurer | Hyundai Motor America |
| Brand | HYUNDAI |
| Model | SONATA PLUG-IN HYBRID |
| Model Year | 2017 |
| File date | 26/03/19 |
| Component | VEHICLE SPEED CONTROL |
| Product type code | VEHICLE |
| Description of the problem | While vehicle is in motion at various speeds with cruise control engaged climbing up on hilly or steeper grades the vehicle accelerates on the dash at nearly 100 percent power according to the hybrid tachometer. This increase in power surpasses well over the set cruise speed. From what i have noticed its 6-10 mph climbing past my set speed. There is also a long delay in power restoration after coasting down hills. I found it to be extremely dangerous with the vehicle at 100 percent power because it could create a situation in which you could possibly rearend another driver or lose control in normal or adverse driving conditions, resulting in injury or loss of life. In addition the issue could lead to a traffic infraction. My state has a lot of speed cameras. This problem have resulted from the recent recall where hyundai installed a new battery management system. The vehicle has aproximently 16400 miles on it. |
| Vehicle Mileage at Failure | 16400 |
| Number of Occurences | |
| Source of the issue | NHTSA WEB SITE |
| City and State | GAITHERSBURG, MD |
| VIN pattern | KMHE14L2XHAXXXXXX |
| 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 | 40 |
| 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 |