Newest first. Many cover only part of a model year, so check your VIN with GMC before booking a repair.
Transport Canada · listed for this model year
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
United States records (NHTSA) · 1
These are NHTSA campaigns for 1977 GMC N9500 vehicles sold in the United States. They are not Canadian recalls: NHTSA's VIN lookup has no Canadian data, and a US campaign may have no Canadian counterpart, or one under a different number covering different vehicles. For a vehicle sold in Canada, go by the Transport Canada listing above and GMC's Canadian VIN lookup.
THE FRONT AXLE ALUMINUM HUBS ON THE INVOLVED VEHICLES MAY CONTAIN A DEFICIENCY IN THE BARREL AREA BETWEEN THE INNER AND OUTER BEARINGS WHICH MAY RESULT IN CRACKS WHICH COULD EVENTUALLY LEAD TO HUB FAILURE.
DEALER WILL INSPECT AND REPLACE FRONT AXLE ALUMINUM HUBS WITH STEEL HUBS, WITHOUT CHARGE TO OWNER.
77V172000 · 685 units in campaign · NHTSA
Applies only if the manufacturer confirms your VIN · repair by an authorized dealer
1977 GMC N9500 recall questions
Transport Canada lists 1 recall for the 1977 GMC N9500 model year. That counts campaigns naming this model year, not recalls on your vehicle: many cover only a VIN range or production window, and some only vehicles found on inspection. NHTSA lists 1 United States campaign for the US-market model, shown separately; a US campaign may have no Canadian equivalent.
Enter your VIN in GMC's Canadian recall lookup, or call a GMC dealer with your VIN. In Canada the manufacturer is responsible for showing recall and repair status for each VIN, so its lookup is the authoritative answer. Cardog uses your VIN only to find the model year; the recalls shown here are listed for that model year and are not matched to your VIN.
Not necessarily. NHTSA campaigns cover vehicles sold in the United States, and NHTSA's VIN lookup has no Canadian data. When a defect also affects Canadian vehicles, the manufacturer files a separate notice with Transport Canada, often under a different number and sometimes covering a different set of vehicles. For a Canadian vehicle, go by the Transport Canada listing and GMC's Canadian lookup.
Safety recall repairs are normally done at no charge by an authorized GMC dealer. The manufacturer's notice for each campaign sets out the remedy and any conditions, so confirm with the dealer when you book.
Once GMC's lookup or a dealer confirms a recall applies, book the repair with an authorized GMC dealer and bring your VIN. If the manufacturer's notice says not to drive the vehicle or to park it outside, follow that instruction. Parts can take time, so book early.
Follow the manufacturer's notice for that recall. Most allow normal driving until the repair; some tell owners to stop driving or to park outside until it is fixed. Cardog does not grade recalls by severity: the manufacturer's notice and your dealer are the source.
Manufacturers must notify owners they have on record. If you bought the vehicle used or have moved, update your details with GMC Canada so notices reach you, and check the manufacturer's lookup from time to time.
Related recall checks
Recall listings for the latest model year vehicles.