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Service bulletins for the 2026 Peterbilt 537

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.

18 on file from NHTSA, as of 2026-10-19.

By type

By component

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
02-1772026-06-03. Service bulletin. ELECTRICAL SYSTEM. Troubleshooting procedures for 2.1m cab power windows are now available.
46-0242026-01-06. Service bulletin. ELECTRICAL SYSTEM. Certain Battery Electric Vehicles that are subject to California Air Resources Board (CARB) regulations have Vehicle Emissions Control Information (VECI) labels that are missing the CARB Enhanced EV and FCEV Statement.
25KWB/25PBB2026-01-06. Service bulletin. EXTERIOR LIGHTING; ELECTRICAL SYSTEM. A new Recommended Repair has been added. It must be used if safety recall 25PACF is performed prior to or at the same time as this repair since the 25PACF remedy also satisfies this safety recall.
25PBB2025-04-04. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Safety Recall The Exterior Lighting Switch (ELS) in certain Model 535, 536, 537, 548, and 567 chassis may not function and can be reset only by a key cycle. This issue may result in non-compliance with FMVSS/CMVSS 101 and 108. Affected chassis must have the Vehicle Soft ware updated.
25PBB2025-03-04. Other. EXTERIOR LIGHTING; ELECTRICAL SYSTEM. "Safety Recall – Interim Notification The Exterior Lighting Switch (ELS) in certain Model 535, 536, 537, 548, and 567 chassis may not function and can be reset only by a key cycle. This issue may result in non-compliance with US Federal Motor Vehicle Safety Standards (FMVSS) or Canadian Motor Vehicle Safety Standards (CMVSS) 101 and 108. This bulletin will be updated when software and programming procedures are available."

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.