Transport CanadaCritical
1979 GMC C SERIESTransport Canada Recall #1981004
The official notice
Defect
On certain vehicles equipped with cacuum power disc/drum brakes may experience brake vacuum booster fatigue cracks. Cracks may propogate to the extent that when a minimum stopping distance is required, vehicle crash without prior warning could occur.
Safety Risk
No risk description available.
Remedy
No remedy description available.
56,924 vehicles affectedMfr ref: 1A08Updated June 10, 2026