Meritor Wabco · United States · Mod
Meritor Wabco Air Brake System: Service brakes — chamber
Affects Meritor Wabco Air Brake System · — — about 3K vehicles.
The hazard
The pressure plate may tear the diaphragm, causing a loss of air pressure, and increasing the risk of a crash.
What to do
Meritor will notify the affected vehicle OEMs and will inspect the pressure plate and replace brake chambers where the pressure plate has shifted, free of charge. Owner letters were mailed May 10, 2021. Owners may contact Meritor customer service at 1-866-668-7221.
Critical — crash/injury risk now
High — injury risk; see remedy
Moderate — fix at next service
Low — minor / informational