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NHTSA Recall 69V039000: Master cylinder (service brakes)

GENERAL MOTORS CORP. reported this safety recall to NHTSA on , covering an estimated 163,493 vehicles. It affects 11 models including the Chevrolet C40.

163,493
vehicles potentially affected
11
models affected
1969
owners notified (April 2)
NHTSA campaign69V039000
ComponentSERVICE BRAKES, HYDRAULIC › FOUNDATION COMPONENTS › MASTER CYLINDER
Report receivedApril 8, 1969
Owner notificationApril 2, 1969
Initiated byNHTSA Office of Defects Investigation

Defect

Not provided.

Safety risk

Not provided.

Remedy

Not provided.

Notes

Possibility that seal on piston in master brake cylinder may, after extendedusage, allow brake fluid to pass seal permitting brake pedal to be pushed tofloor in a slow gradual stop or upon the first ap- plication of brakes aftervehicle has been standing for a period of time.is also a possibility thatinner liner of vacuum hose which connects to brake vacuum booster may collapse,causing loss of power brake assist.(correct by installing new parts in brakemaster cylinder and modifying vacuum hose rout- ing.)

Vehicles covered by recall 69V039000

Make and modelModel years
Chevrolet C401967, 1968
Chevrolet C501967, 1968
Chevrolet C601967, 1968
Chevrolet S401967, 1968
Chevrolet S501967, 1968
Chevrolet S601967, 1968
GMC E45001967, 1968, 1969
GMC E55001967, 1968, 1969
GMC E65001967, 1968, 1969
GMC S55001967, 1968, 1969
GMC S65001967, 1968, 1969

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.