Excessive steering flutter condition, while being driven at approximately 55 ? 70 mph

Bulletin number

T-SB-0178-13

Component

Wheels

Summary

Some vehicles may exhibit excessive steering flutter condition, while being driven at approximately 55 ? 70 mph. In some cases, this condition is caused by a wheel imbalance or RFV (Radial Force Variation) that is out of range. If the tire and wheel assembly is satisfactory, a steering control valve preload spring is available to reduce the steering flutter felt through the steering wheel.

Owners of these vehicles have filed 20 complaints in the wheels category.