| Issue ID | 1454715 |
| Internal NHTSA # | 11080187 |
| Manufacurer | Toyota Motor Corporation |
| Brand | TOYOTA |
| Model | SIENNA |
| Model Year | 2017 |
| File date | 02/01/18 |
| Component | TIRES |
| Product type code | VEHICLE |
| Description of the problem | Excessive tire wear on outer edges. Tires were rotated every 5,000 miles or so, after 20,000 tires were very worn. Replaced at 30,000, which was actually way past what was safe for them. Now, with michelin defenders, an alignment upon installation (which did not show anything), and proper tire pressure at 4500 miles, same wear is happening. Toyota's response was that it is a heavy vehicle. What is it: tires are falsely labeled for higher milage than they get or are the sienna tires not the appropriate size for the weight of the vehicle? Attached photos: front wear at 4500 miles as compared to back tire and original tires at 30,000. |
| Vehicle Mileage at Failure | 30000 |
| Number of Occurences | |
| Source of the issue | NHTSA WEB SITE |
| City and State | CLINTON, CT |
| VIN pattern | 5TDZA23C85SXXXXXX |
| 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 | 50 |
| 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 |