The issue
Certain trucks may not comply with CMVSS 121 which requires a split braking system operating separately and independently on two axles.
Description (français)
Certains camions peuvent ne pas être conformes à la NSVAC 121 qui exige le montage d'un double circuit de freinage agissant séparément et indépendamment sur deux essieux.
Transport Canada Vehicle Recalls Database · Contains information licensed under the Open Government Licence – Canada · official text, unchanged
Vehicles covered
| Make and model | Model years |
|---|---|
| Gmc ASTRO | 1977, 1978, 1979, 1980 |
| Gmc BISON | 1977, 1978, 1979, 1980 |
| Gmc BRIGADIER | 1977, 1978, 1979, 1980 |
| Gmc BRUIN | 1977, 1978, 1979, 1980 |
| Gmc GENERAL | 1977, 1978, 1979, 1980 |
| Gmc TITAN | 1977, 1978, 1979, 1980 |