The defect
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."
The risk
A delayed brake release may increase the risk of crash.
The 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.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Peterbilt 320 | 2016, 2017, 2018, 2019, 2020 |
| Peterbilt 520 | 2016, 2017, 2018, 2019, 2020 |
Components: SERVICE BRAKES, AIR
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Peterbilt 320 | 2016 | 0 | 5 |
| Peterbilt 320 | 2017 | 0 | 6 |
| Peterbilt 320 | 2018 | 0 | 4 |
| Peterbilt 320 | 2019 | 0 | 4 |
| Peterbilt 320 | 2020 | 0 | 4 |
| Peterbilt 520 | 2016 | 0 | 4 |
| Peterbilt 520 | 2017 | 0 | 5 |
| Peterbilt 520 | 2018 | 0 | 8 |
| Peterbilt 520 | 2019 | 1 | 8 |
| Peterbilt 520 | 2020 | 3 | 12 |
Other service brakes, air recalls in 2020
14 of the 782 recall campaigns reported to NHTSA in 2020 concerned the service brakes, air; PACCAR Incorporated filed 154 campaigns in all.
| 20V787000 16 Dec 2020 | Daimler Trucks North America, LLC |
| 20V593000 28 Sept 2020 | PACCAR Incorporated |
| 20V536000 2 Sept 2020 | Volvo Trucks North America |
| 20V390000 2 Jul 2020 | Daimler Trucks North America LLC |
| 20V388000 2 Jul 2020 | Jayco, Inc. |
| 20V383000 1 Jul 2020 | Hino Motors Sales U.S.A., Inc. |
| 20V233000 27 Apr 2020 | Motor Coach Industries |
| 20V167000 20 Mar 2020 | Thor Motor Coach |
NHTSA recalls (public domain) · all recalls of 2020