Service bulletins for the 2024 Peterbilt 520
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.
55 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Driver assistance are shown. Show all
| 24KWL/PBL | 2026-08-20. Service bulletin. FORWARD COLLISION AVOIDANCE: WARNINGS. The verbiage in the Introduction section has been updated. |
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| 46-003 | 2023-11-10. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). A software fix for model 520EV that are not equipped with ESP (Stability Control) is now available. The currently available soft ware, part number:SCM_1p5_BC_R5p00_003, will address issues caused by software version R5.00_002 that affect Peterbilt Model 520EV. The software update will correct the following issues: 1.) Power gauge displays axle RPM instead of power draw, 2.) Air conditioning compressor is inoperative below 10 mph (16 kmh) and over 40 mph (65 kmh), 3.) Low air and low coolant audible alarms (buzzers) are inoperative below 10 mph (16 kmh), and 4.) (520EV Only) Does not charge without ignition in on position. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.