WenmarOpen by Wenmar Pro

Service bulletins for the 2017 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.

670 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
sbw47132018-01-05. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY. sbw4713 Crank No Start, Loss of Engine Prime on Decked Vehicles
15TL212018-01-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 15TL21 GHG17 Diagnostic Connector Update
0237-142018-01-05. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY:SOLENOID. 0237-14 Engine Brake Solenoid
812-142017-11-17. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. 812-14 FMI 3, 4: Engine Aux. Shutdown Input Failed High and Low
1003-142017-11-17. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY. 1003-14 Rough Running or Stalling.
1005-142017-11-17. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:SOFTWARE. 1005-14 Oil Coolant Module
14CSA222017-11-17. Service bulletin. ELECTRICAL SYSTEM:WIRING. 14CSA22 DTNA Chassis Wiring Diagrams
AEO15M12017-06-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ELECTRICAL SYSTEM:SOFTWARE. AEO15M1 GHG14 DD PLATFORM SOFTWARE REPROGRAMMING FOR AUTO ELEVATE
16TS212017-05-31. Service bulletin. ELECTRICAL SYSTEM. 16TS21 GHG17 DD PLATFORM ENGINES WITH CODE SPN: 3217 FMI: 2, SCR INLET NOX SENSOR LAMBDA DRIFT LOW OR CODE SPN: 3227 FMI: 2, SCR OUTLET NOX SENSOR LAMBDA DRIFT LOW
16TL182017-05-31. Service bulletin. ELECTRICAL SYSTEM. 16TL18 GHG17 MEDIUM DUTY (MD) TEST ELECTRONIC CONTROL UNITS (ECUS)
16 TL-152016-10-20. Service bulletin. ELECTRICAL SYSTEM; ELECTRONIC STABILITY CONTROL (ESC). 16TL15 GHG17 HEAVY DUTY (HD) TEST ELECTRONIC CONTROL UNITS (ECUS)
08 14-162016-10-19. Service bulletin. ELECTRICAL SYSTEM; ENGINE. 0814-16 SPN 5016 (ACM) (GHG17)
08 10-162016-10-19. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE. 0810-16 SYMPTOM DIAGNOSTIC – NOISE
08 09-162016-10-19. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 0809-16 SYMPTOM DIAGNOSTICS : NOISY 1- BOX™ AFTERTREATMENT
08 04-162016-10-18. Service bulletin. ELECTRICAL SYSTEM; ENGINE. 0804-16 SPN 5444 (MCM) (GHG17)
16 CSA-182016-10-17. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ELECTRICAL SYSTEM:SOFTWARE. 16CSA18 RELEASE OF DIAGNOSTICLINK® 8.04 SERVICE PACK 2
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 06-162016-09-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE. 0606-16 SPN 630 (CPC) (GHG17) 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

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