NHTSA (USA)Critical
1997 GMC B7NHTSA Campaign #99V057000
The official notice
Defect
VEHICLE DESCRIPTION: SCHOOL BUSES EQUIPPED WITH 6.0L GASOLINE ENGINE, 10,000 LB. FRONT AXLE, AND POWER STEERING. THE POWER STEERING FLUID CAN LEAK AS A RESULT OF A POWER STEERING FLUID SUPPLY HOSE INTERFERENCE CONDITION.
Safety Risk
EVENTUALLY, ALL POWER STEERING ASSIST WOULD CEASE, RESULTING IN A LOSS OF STEERING CONTROL.
Remedy
DEALERS WILL INSTALL A NEW POWER STEERING HOSE AND ADAPTER.
Updated June 10, 2026