Vehicle recall 78V235000 · October 23, 1978
1975 Polar Polar
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.
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- 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".
- Remedy
- The defective valve will be replaced without charge.
- Notes
- 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.
Recall details
- NHTSA campaign
- 78V235000
- Reported to NHTSA
- October 23, 1978
- Filed by
- POLAR COMPANY
- Vehicles potentially affected
- 6
- Initiated by
- NHTSA’s Office of Defects Investigation
- Components
- Service brakes, air › Disc › Chamber
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
- Polar Polar (1975): 1975
Has your Polar been repaired?
Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.
NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Polar dealer can also check your VIN. Recall repairs are free.