Service bulletins for the 2017 Peterbilt 320
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
38 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Brakes are shown. Show all
| 13-060 | 2022-09-06. Service bulletin. SERVICE BRAKES. The service information for Bendix Air Dryer maintenance is being updated to include new procedures. |
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| 13-054 | 2020-08-05. Service bulletin. SERVICE BRAKES. Fix-As-Fail - Bendix New-Gen Lightweight Steer Axle Drum Brake Spider Cracking |
| 20PBB | 2020-04-03. Service bulletin. SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE. Safety Recall: Peterbilt has decided that certain Model 320 and 520 trucks built between 2/20/2015 and 7/16/2019 may have been built without a quick release valve. The absence of this valve could affect rear brake timing on certain vehicles equipped with a tri-drive or liftable tag axle and Dual Seated or Right Hand Stand-Up steering configurations. Resolutoin is to inspect for a quick release valve installed, and if there is not one, to install a quick release valve. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.