Service brakes, air: disc: chamber (Polar)
Vehicle recall 78V-235. NHTSA received POLAR COMPANY’s report on Oct 23, 1978.
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The short answer
NHTSA received POLAR COMPANY’s report on Oct 23, 1978. Copied from NHTSA on Oct 20, 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.
THE PISTON IN THE ANTILOCK VALVE COULD STICK DUE TO EXPOSURE TO HIGH CONCENTRATIONS OF FLUID CONTAMINANTS THAT MAY COLLECT IN THE TRAILER BRAKING SYSTEM.
CONSEQUENTLY, NO AIR WOULD BE DELIVERED TO THE BRAKE CHAMBERS NORMALLY SUPPLIED BY THAT VALVE.
THIS COULD RESULT IN A “NO BRAKE” CONDITION ON THE AFFECTED AXLES.
THIS CONSTITUTES A NON-COMPLIANCE TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, “AIR BRAKE SYSTEMS”.
NHTSA, Recalls flat file before 2010. Released Oct 20, 2026. Updated daily.
- NHTSA’s part: Service brakes, air: disc: chamber.
What should you do?
THE DEFECTIVE VALVE WILL BE REPLACED WITHOUT CHARGE.
NHTSA, Recalls flat file before 2010. Released Oct 20, 2026. Updated daily.
- How to reach the firm: VEHICLE DESCRIPTION: TRAILERS.SYSTEM: SERVICE BRAKES; ANTILOCK AIR VALVE.CONSEQUENCES OF DEFECT: LOSS OF BRAKING CAPABILITY COULD RESULT IN A VEHICLEACCIDENT.NOTE: UNTIL THE VALVE IS REPLACED, ANY FLUIDS SHOULD BE DRAINED FROM THE BRAKESYSTEM DAILY AND FLUIDS SHOULD NOT BE ADDED DIRECTLY INTO THE BRAKE LINE.
- Check a vehicle by its VIN at NHTSA: the recalls still open on it are listed there.
Which ones are recalled?
NHTSA counts 6 vehicles potentially involved, across everything this recall names.
NHTSA, Recalls flat file before 2010. Released Oct 20, 2026. Updated daily.
- Polar Polarand 1975, before the model years listed here
Who is recalling it?
- Made by POLAR COMPANY.
NHTSA, Recalls flat file before 2010. Released Oct 20, 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 20, 2026 and checked Oct 20, 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 20, 2026.