| Issue ID | 792282 |
| Internal NHTSA # | 10332180 |
| Manufacurer | TOYOTA MOTOR CORPORATION |
| Brand | TOYOTA |
| Model | SIENNA |
| Model Year | 2011 |
| File date | 08/05/10 |
| Component | VEHICLE SPEED CONTROL |
| Product type code | VEHICLE |
| Description of the problem | I bought a 2011 toyota sienna le in march 2010 and have 1200 miles on it. I believe the sienna as acceleration issues when in cruise control. I turned on the cruise control to keep the speed at 60 mph on the bridge. While going uphill, the sienna was accelerating to maintain speed which was ok but when going downhill it just won't stop accelerating and the speed went upto 75-80 mph when i hit the breaks and turned off the cruise control. I tried the same in another uphill/downhill location on route 1 and the same thing happened. Please look into the issue and have toyota take remedial action. The other issue i found was the untimely change in gear. This happened when i hit the brakes to go over a speed-reducer and then hit the acceleration pedal. Usually there is a gear shift around 20-40 mph, but in this case the gear just wasn't shifting and the rpm went on rising. I stopped the vehicle and started again and things seemed to be alright. This has happened to me with the sienna a number of times. The third issue is that when i turn quickly the steering seems to become non-responsive for a few seconds and seems to get stuck. This doesn't happen when i an slowly turning though. |
| Vehicle Mileage at Failure | 1200 |
| Number of Occurences | 1 |
| Source of the issue | NHTSA WEB SITE |
| City and State | EDISON, NJ |
| 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? | |
| 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 | 60 |
| 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 |