Peterbilt · United States · Mod
Peterbilt 348, 579: Service brakes — air
Affects Peterbilt 348, 579 · 2021 — about 13 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
Dealers will replace brake chambers, free of charge. Owner notification letters were mailed on July 9, 2021. Owners may contact PACCAR (Peterbilt) customer service at 1-940-591-4220. PACCAR's number for this recall is 21PBE.
Critical — crash/injury risk now
High — injury risk; see remedy
Moderate — fix at next service
Low — minor / informational