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Service bulletins for the 2011 Peterbilt 337

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.

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

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

Bulletins, newest first
32-0152020-07-03. Service bulletin. ELECTRICAL SYSTEM. Information Only: This bulletin provides dealers with a battery warranty quick reference guide to ensure the appropriate tests for battery warranty are performed in order to prevent battery warranty claims filed with incorrect or incomplete information.
20 PBC2020-05-06. Service bulletin. ENGINE AND ENGINE COOLING; SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT. Safety Recall Interim Bulletin: The Tractor ABS Lamp May Not Illuminate When ABS Controller Loses Battery and/or Ignition Power. NHTSA recall number is 20V199 Non compliance to FMVSS and CMVSS 121 and 136. Resolution is to Reflash software.
34-0852020-04-03. Service bulletin. VEHICLE SPEED CONTROL; ELECTRICAL SYSTEM. Information Only – Vehicles may have the connector seals on the wheel speed sensor incorrectly installed, which may lead to water intrusion and corrosion in some vehicles.
34-0852020-03-04. Service bulletin. VEHICLE SPEED CONTROL; ELECTRICAL SYSTEM. Information Only: Vehicles may have the connector seal on the wheel speed sensor incorrectly installed, which may lead to sensor corrosion.
03-0712020-01-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Information Only - Vehicles built with NAMUX software from 2013 to present may experience accuracy issues with the tachometer. The issue can be temporarily resolved using any one of the included procedures.
34-0662019-07-08. Service bulletin. ELECTRICAL SYSTEM. Information Only - Quick Reference Guide for Electric harness damage repairs.
13-0492019-03-18. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Information: Bendix ACOM Software version 6.16.5.0 for diagnostics may introduce an unrecoverable error. Notice to dealers to replace this version with older software version until Bendix introduces new version.
03-0642018-08-13. Service bulletin. ELECTRICAL SYSTEM. Information - Recommended Practices for Updating ESA Software
RN-111122012-02-27. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. PETERBILT TRUCK: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ON CERTAIN TRUCKS, WITH SMARTNAV SYSTEM INSTALLED, A NEW SOFTWARE IMPROVEMENTS HAS BEEN PROVIDED. *PE
SB-E-0432012-01-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. PETERBILT TRUCK: SOFTWARE UPDATE FOR ENGINE CONTROL UNIT (ECU) AND AFTERTREATMENT CONTROL UNIT IS AVAILABLE FOR CERTAIN VEHICLES THAT ARE ELIGIBLE. *PE
SB-E-0282012-01-07. Service bulletin. ELECTRICAL SYSTEM:WIRING; ENGINE AND ENGINE COOLING:ENGINE. PETERBILT TRUCK: ON CERTAIN TRUCKS, ENGINES WITH TURBO SPEED SENSOR HARNESS, MAY HAVE WIRES THAT ARE CHAFE, RESULTING IN FALSE SIGNALS TO ENGINE CONTROL MODULE (ECM) THAT AFFECT ENGINE PERFORMANCE. *PE
FRN-411-12011-07-14. Service bulletin. ELECTRICAL SYSTEM:WIRING. PACCAR INCORPORATED-PETERBILT MOTORS: THERE ARE CABLES MISSING THAT ENABLE THE TEXT TO SPEECH FUNCTIONALITY. *RM

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