WenmarOpen by Wenmar Pro

Service bulletins for the 2011 Western Star 4900

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.

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

By type

By component

By topic

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

Bulletins, newest first
sbw54602017-11-17. Service bulletin. ELECTRICAL SYSTEM. sbw5460 Powernet Distribution Box Fuse Retention on the Keep-Alive
903-142017-10-15. Service bulletin. ELECTRICAL SYSTEM; ENGINE. 903-14 Selective Catalyst Reduction Inlet NOx Sensor Circuit Failed High and Low
904-142017-10-15. Service bulletin. ELECTRICAL SYSTEM; ENGINE. 904-14 Selective Catalyst Reduction Outlet NOx Sensor Circuit Failed High and Low
911-142017-10-15. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. 911-14 5V Sensor Supply Bank 2 Circuit Failed High
909-142017-10-15. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, DIESEL. 909-14 Diesel Exhaust Fluid Metering Unit Air Pressure Sensor Circuit Failed High and Low
16TS242017-10-15. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. 16TS24 GHG14 DD Platform Engines With Code SPN: 3216/FMI 18, SCR Inlet NOx Sensor Drift Low
AEO15M12017-06-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ELECTRICAL SYSTEM:SOFTWARE. AEO15M1 GHG14 DD PLATFORM SOFTWARE REPROGRAMMING FOR AUTO ELEVATE
08 09-162016-10-19. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 0809-16 SYMPTOM DIAGNOSTICS : NOISY 1- BOX™ AFTERTREATMENT
06 11-162016-09-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE. 0611-16 SPN 110 (MCM) (GHG17) AND SPN 110 (MCM); (EPA07;EPA10;GHG14) DIAGNOSTIC PROCEDURE
06 10-162016-09-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE. 0610-16 SPN 111 (CPC) (GHG17) AND SPN 111 (CPC); (EPA07;EPA10;GHG14) DIAGNOSTIC PROCEDURE
06 09-162016-09-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE. 0609-16 SPN 174 (MCM) (GHG17), SPN 174 (MCM) (EPA07), SPN 174; (MCM) (EPA10), AND SPN 174 DIAGNOSTIC PROCEDURE
06 05-162016-09-06. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 0605-16 SPN 625 (CPC)(GHG17) AND SPN 625 (CPC) (EPA10;GHG14) DIAGNOSTIC PROCEDURE
06 01-162016-09-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE. 0601-16 SPN 103 (MCM) (GHG17) AND SPN 103 (MCM); (EPA07;EPA10;GHG14) DIAGNOSTIC PROCEDURE
RC-FL-609A2012-02-27. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY. DAIMLER TRUCKS: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ON CERTAIN TRUCKS, A DEFECT REGARDING THE RUBBER ISOLATOR, WITH A BOLT ATTACHMENT, THE SUPPORT BRACKET MAY LOOSEN AND BACK OUT, CAUSING SHORT CIRCUIT BETWEEN CHASSIS AND UN FUSED STARTED CABLE. *PE

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