Campaigns on record across the GMC H9500 (1966–1978), from Transport Canada and, tagged NHTSA, the United States. Pick a model year for the Canadian listing, and check your VIN with GMC to confirm which apply.
MEDIUM AND HEAVY DUTY TRUCKS EQUIPPED WITH EATON ANTI-LOCK AIR BRAKE SYSTEM. THE PISTON IN THE ANTI-LOCK RELAY VALVES MAY EXPAND WHEN EXPOSED TO CERTAIN FLUID CONTAMINATES WHICH MAY BE FOUND IN THE AIR BRAKE SYSTEM. EXPANDED PISTONS CAN STICK OR JAM IN THE VALVES AND PREVENT AIR DELIVERY TO THE BVRAKE CHAMBERS CAUSING A LOSS OF BRAKING POWER ON THE AFFECTED AXLE. THIS CONDITION WOULD RESULT IN LONGER STOPPING DISTANCES.
1979131 · 254 units in campaign · Transport Canada
Applies only if the manufacturer confirms your VIN · repair by an authorized dealer · All 1978 gmc h9500 recalls
68V064000 · 22,683 units in campaign · NHTSA
Applies only if the manufacturer confirms your VIN · repair by an authorized dealer · All 1968 gmc h9500 recalls
GMC H9500 by year
Related recall checks
Check recalls for specific GMC H9500 model years