Service brakes, airRecall 21V-328 · Peterbilt vehicles

PACCAR Incorporated recall 21V-328 covers 13 Peterbilt vehicles for a service brakes, air problem, reported to NHTSA on May 10, 2021. The manufacturer's latest report (2023 Q2) shows 92% of affected vehicles repaired.

92%
Vehicles repaired12 of 13 · 2023 Q2
Vehicles affected132 models
ReportedMay 10, 2021Owners notified Jul 9, 2021
Complaints since0Same system, after the recall

Source: NHTSA recall 21V328000 and manufacturer quarterly reports. Started by the manufacturer.

What's wrong

The problem

PACCAR Incorporated (PACCAR) is recalling certain 2021 Peterbilt 348 and 579 vehicles. The spring brake chamber may have been assembled with incorrect springs that were out of specification, which may cause the pressure plate to shift.

The risk

The pressure plate may tear the diaphragm, causing a loss of air pressure and increasing the risk of a crash.

What to do

The fix

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.

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.

Repair progress

How fast cars are being fixed

92%repaired

Share of affected vehicles repaired in each quarterly report the manufacturer filed with NHTSA.

0%50%100%2021 Q32023 Q2
2 models

Vehicles in this recall