Service brakes, hydraulic: power assist: vacuum: hoses, lines/piping, and fittings (Chevrolet and GMC)
Vehicle recall 71V-037. NHTSA received GENERAL MOTORS CORP.’s report on Mar 24, 1971.
Watch and the shortlist are kept with a free account, on every device. Your watch list. NHTSA’s own record is on nhtsa.gov.
The short answer
NHTSA received GENERAL MOTORS CORP.’s report on Mar 24, 1971. 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.
NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.
- NHTSA’s part: Service brakes, hydraulic: power assist: vacuum: hoses, lines/piping, and fittings.
What should you do?
The notice gives no remedy in a field of its own.
NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.
- How to reach the firm: CHEVROLET BULLETIN NO 71-C-7.GMC BULLETIN NO 71-C-4 AND 71-C -4A.TRUCKS ANDSCHOOL BUSSES WITH BENDIX VACUUM HYDRAULIC BR AKES, TRUCKS WITH VACUUM BOOSTEDBRAKES.POSSIBILITY THAT SIN GLE BENDIX VACUUM HYDRAULIC BRAKE SYSTEM MAY HAVEEND CAP HEXHEAD FITTING ASSEMBLY WHICH DOES NOT MAKE PROPER CONTACT WITHENDOFBOOSTER SLAVE CYLINDER.THIS COULD CAUSE BRAKE FLUID TOLEAK FROM END OFBOOSTER SLAVE CYLINDER.LOSS OF BRAKE FLUIDWOULD RESULT IN LOW BRAKE PEDALAND CAUSE COMPLETE LOSS OF BR AKING ACTION.(CORRECT BY REPLACING WITH NEWIMPROVED NUT.)
- Check a vehicle by its VIN at NHTSA: the recalls still open on it are listed there.
Which ones are recalled?
NHTSA counts 9,600 vehicles potentially involved, across everything this recall names.
NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.
- Chevrolet P30and 1971, before the model years listed here
- GMC CE5500and 1971, before the model years listed here
- GMC TE6500and 1971, before the model years listed here
- GMC TE5500and 1971, before the model years listed here
- Chevrolet C50and 1971, before the model years listed here
- Chevrolet C30and 1971, before the model years listed here
- GMC CM6500and 1971, before the model years listed here
- Chevrolet S40and 1971, before the model years listed here
- Chevrolet S50and 1971, before the model years listed here
- GMC CG5500and 1971, before the model years listed here
- Chevrolet T50and 1971, before the model years listed here
- GMC P3500and 1971, before the model years listed here
- GMC C3500and 1971, before the model years listed here
- GMC CE6500and 1971, before the model years listed here
- GMC CE4500and 1971, before the model years listed here
- Chevrolet T60and 1971, before the model years listed here
- Chevrolet C60and 1971, before the model years listed here
- Chevrolet C40and 1971, before the model years listed here
- GMC CS4500and 1971, before the model years listed here
- GMC CM5500and 1971, before the model years listed here
- GMC TS5500and 1971, 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
-
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.