Emergency parking brake:air:valve:control
Defect Summary
Diaphragm material which has rubber bonded to both sides of a nylon fabric reinforcement may have insufficient bond between the fabric and the rubber on one side of the diaphragm. If the diaphragm is installed with the insufficient bonded side down, it permits pressurized air to enter between the fabric and rubber causing delamination. This results in ballooning of the rubber material which restricts the flow of air from the spring brake and holds the spring brake in the release position. consequence of defect: if the spring brakes are used as a parking brake and the diaphragm defect prohibits the application of the spring brakes, a vehicle crash could occur in a roll away situation. Where the spring brakes are employed as a secondary emergency brake, a vehicle crash could occur if the air brake system which includes the spring brakes, develops a partial or complete system failure through loss of air pressure and the diaphragm defect prohibits the application of the spring brakes.
Corrective Action
Replace valve and kits in stock and provide parts and instructions to repair valve in service at no cost to the consumer. note: valve date codes 10323 through 13653 and 10014 through 11214. Kits date code feb 83 through apr 84 or b83 through m83 or a84 through d84.
Similar Recalls
Other recalls from Midland Brake, Inc. or involving Parking Brake.
FAQ: Recall 85E031000
Your rights, the repair process, and what each field on this page means.
What is recall 85E031000?
NHTSA recall 85E031000 was issued by Midland Brake, Inc. on October 16, 1985. It addresses: Emergency parking brake:air:valve:control. The recall affects approximately 39,000 vehicles, with the defect involving the Parking Brake component.
How do I get this recall repaired?
Contact any authorized Midland Brake, Inc. dealer and reference NHTSA recall ID 85E031000 or the manufacturer campaign number NR (Not Reported). Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.