NHTSA Recall 74V027000: Vacuum (service brakes)
GENERAL MOTORS CORP. reported this safety recall to NHTSA on , covering an estimated 1,218,387 vehicles. It affects 28 models including the Buick Apollo.
| NHTSA campaign | 74V027000 |
|---|---|
| Component | SERVICE BRAKES, HYDRAULIC › POWER ASSIST › VACUUM |
| Report received | February 15, 1974 |
| Owner notification | February 18, 1974 |
| Initiated by | Manufacturer |
Defect
Not provided.
Safety risk
Not provided.
Remedy
Not provided.
Notes
Oldsmobile campaign no 74-c-5.buick campaign no 73-c-3.GMC truck campaignno 74-c-06.chevrolet campaign no 74-c-11.pontiac campaign no 74-c-5.possibility that the single diaphragm brake vacuum power booster was assembledwith demensional descrepancies in the vacuum power booster housing which mayreduce the torque required to unlock the front half of the housing from therear half.if this condition exists, the low unlocking torque coupled withother variations in the assembly may cause housing to rotate and disengage fromthe locking tabs resulting in separation of the two halves of the booster andcomplete loss of brakes.(correct by inspecting and staking the housing at twopoints to preclude rotation of the housing.
Vehicles covered by recall 74V027000
| Make and model | Model years |
|---|---|
| Buick Apollo | 1973, 1974 |
| Buick Century | 1973 |
| Buick Regal | 1973 |
| Chevrolet Belair | 1973, 1974 |
| Chevrolet Biscayne | 1973, 1974 |
| Chevrolet Blazer | 1973, 1974 |
| Chevrolet C10 | 1973, 1974 |
| Chevrolet Camaro | 1973, 1974 |
| Chevrolet Caprice | 1973 |
| Chevrolet El Camino | 1973 |
| Chevrolet G10 | 1973, 1974 |
| Chevrolet G20 | 1973, 1974 |
| Chevrolet Impala | 1973, 1974 |
| Chevrolet K10 | 1973, 1974 |
| Chevrolet Monte Carlo | 1973 |
| Chevrolet Nova | 1973, 1974 |
| Chevrolet P10 | 1973, 1974 |
| GMC C1500 | 1973, 1974 |
| GMC G1500 | 1973, 1974 |
| GMC G2500 | 1973 |
| GMC K1500 | 1973, 1974 |
| GMC P1500 | 1973, 1974 |
| GMC Sprint | 1973 |
| Oldsmobile Cutlass | 1973 |
| Oldsmobile Omega | 1973, 1974 |
| Pontiac Firebird | 1973, 1974 |
| Pontiac Lemans | 1973, 1974 |
| Pontiac Ventura | 1973, 1974 |
Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.