Steering:power assist
Defect Summary
A sudden hydraulic pressure loss during hard turns results in a momentary loss of power steering assist. The pressure loss occurs when the hydraulically driven engine cooling fan turns off in the turn.
Safety Consequence
The driver reacts to the loss of power steering assist by oversteering, which could result in a vehicle accident.
Corrective Action
The hydraulic control valves will be replaced with valves of a new design. Until such time as parts are available, owners will be instructed to disconnect the fan cutoff switch so that hydraulically driven fans will run full time, eliminating the pressure spike.
Similar Recalls
Other recalls from Thomas Built Buses, Inc. or involving Steering.
FAQ: Recall 94V143000
Your rights, the repair process, and what each field on this page means.
What is recall 94V143000?
NHTSA recall 94V143000 was issued by Thomas Built Buses, Inc. on August 1, 1994. It addresses: Steering:power assist. The recall affects approximately 1,150 vehicles, with the defect involving the Steering component.
How do I get this recall repaired?
Contact any authorized Thomas Built Buses, Inc. dealer and reference NHTSA recall ID 94V143000 or the manufacturer campaign number NR (Not Reported). Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.