Service brakes, hydraulic: foundation components: drum: wheel cylinders (Chevrolet, Pontiac and GMC and 2 more)
Vehicle recall 85V-048. NHTSA received GENERAL MOTORS CORP.’s report on Apr 29, 1985.
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The short answer
NHTSA received GENERAL MOTORS CORP.’s report on Apr 29, 1985. Copied from NHTSA on Oct 28, 2026.
Every line below is in NHTSA’s own words, with its source beside it.
What’s wrong with it?
The notice gives no hazard in a field of its own.
EXCESSIVE ENLARGEMENT OF THE WHEEL CYLINDER PILOT HOLE IN THE REAR BRAKE BACKING PLATE COULD ALLOW THE WHEEL CYLINDER TO ROTATE AND CAUSE LOSS OF BRAKE FLUID.
CONSEQUENCE OF DEFECT: A LOSS OF BRAKE FLUID LEADS TO LOSS OF REAR BRAKE ACTION, CREATING THE POTENTIAL FOR AN ACCIDENT.
FRONT BRAKES WOULD REMAIN OPERATIONAL.
NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.
- NHTSA’s part: Service brakes, hydraulic: foundation components: drum: wheel cylinders.
What should you do?
ADD A PART TO PREVENT WHEEL CYLINDER FROM ROTATING.
NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.
- How to reach the firm: NOTE: OWNER NOTIFICATION WILL BEGIN AFTER SEPTEMBER 1, 1985 AND SHOULD BE COMPLETED BY SEPTEMBER 30, 1985.VEHICLE DESCRIPTION: MIDSIZE PASSENGER CARS AND SMALL TRUCKS. SYSTEM: REAR BRAKES.
- Check a vehicle by its VIN at NHTSA: the recalls still open on it are listed there.
Which ones are recalled?
NHTSA counts 1,810,000 vehicles potentially involved, across everything this recall names.
NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.
- Chevrolet EL Caminoand 1978, 1979 and 1980, before the model years listed here
- Pontiac Grand Prixand 1978, 1979 and 1980, before the model years listed here
- GMC Caballeroand 1978 and 1979, before the model years listed here
- Pontiac Lemansand 1978, 1979 and 1980, before the model years listed here
- Pontiac Grand AMand 1978, before the model years listed here
- GMC S15and 1982, before the model years listed here
- Chevrolet Malibuand 1978, 1979 and 1980, before the model years listed here
- Buick Centuryand 1978 and 1980, before the model years listed here
- Chevrolet Monte Carloand 1978, 1979 and 1980, before the model years listed here
- Oldsmobile Cutlassand 1978, 1979 and 1980, before the model years listed here
- Buick Regaland 1978 and 1980, before the model years listed here
- Chevrolet S10and 1982, before the model years listed here
Who is recalling it?
- Made by GENERAL MOTORS CORP..
NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.
What the record doesn’t say
- NHTSA’s recall file doesn’t say whether anyone was hurt.
- Whether one vehicle or seat has been fixed: only its maker, or NHTSA’s lookup with a VIN, can say.
- This recall names only model years before 2015, which have no pages here. Your VIN, at NHTSA, says which recalls are open on a vehicle.
- How many have been returned or fixed isn’t in the notice.
Hearth Record wrote these lines.
Sources
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National Highway Traffic Safety Administration, Recalls flat file before 2010 (FLAT_RCL_PRE_2010).
Released Oct 28, 2026 and checked Oct 28, 2026. Updated daily. Public domain (U.S. Government work).
Vehicle, car seat, tire and vehicle equipment recalls, owner complaints and crash ratings are from the National Highway Traffic Safety Administration (NHTSA). Copied on Oct 28, 2026.