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Peterbilt 520 Recall 20V132: Delayed Brake Release May Raise Crash Risk

NHTSA campaign 20V132, reported March 4, 2020, 233 vehicles potentially affected.

What this recall means for you

Certain Peterbilt 320 and 520 trucks from model years 2016 through 2019 have dual foot valves and a liftable tag or tri-drive rear axle, and the rear brake signal hose may be missing a quick release valve. This can delay brake release timing, so the vehicle does not meet the requirements of Federal Motor Vehicle Safety Standard 121 for air disc brakes.

A delayed brake release may increase the risk of a crash. If you own an affected vehicle, PACCAR will notify you directly. You can also contact PACCAR customer service at 1-940-591-4220.

The repair is free. An authorized dealer will check the vehicle for a quick release valve and install one if needed. Check your VIN for open recalls to confirm whether your truck is affected.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 20V132PACCAR Incorporated
Component
SERVICE BRAKES, AIR
Problem
PACCAR Incorporated (PACCAR) is recalling certain 2016-2020 Peterbilt 320 and 520 vehicles with dual foot valves and a liftable tag or tri-drive rear axles. The rear brake signal hose may be missing a quick release valve, possibly causing a delay in their brake release timing. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air Disc Brakes."
Risk
A delayed brake release may increase the risk of crash.
Remedy
PACCAR will notify owners, and dealers will check the vehicles for a quick release valve, installing one as necessary, free of charge. The recall began March 24, 2020. Owners may contact PACCAR customer service at 1-940-591-4220. PACCAR's number for this recall is 20PBB.
Notes
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.

Affected vehicles

Peterbilt 32020162017201820192020
Peterbilt 52020162017201820192020