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Service bulletins for the 2010 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.

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

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Only bulletins with component: Brakes are shown. Show all

Bulletins, newest first
TS10337682020-07-31. Service bulletin. SERVICE BRAKES, HYDRAULIC. Training Solution for Western Star Front Brake Squeal - Burnishing Procedure. The brake burnishing procedure can be used to help reduce brake related noise or imbalance concerns which may occur in the field.
DOC-10337682018-12-10. Service bulletin. SERVICE BRAKES. TS 1033768: Western Star Front Brake Squeal - Burnishing Procedure
FL7562018-10-29. Service bulletin. SERVICE BRAKES, HYDRAULIC; SERVICE BRAKES, AIR; ELECTRICAL SYSTEM. Brake Light Pressure switch may not activate the brake lights with a light application of the brake pedal.
603-132018-06-18. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP. 603-13 SPN 84 -FMI 6 - EPA07-GHG14
102-132018-06-11. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING; SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR. 102-13 SPN 84-FMI 13, 19, 21 (MCM) EPA10-GHG14
sbw42062018-03-05. Service bulletin. SERVICE BRAKES. sbw4206 Brake Shimmy - Meritor SteeLite X30 Brake Drum With Excessive Runout
sbw42052018-01-16. Service bulletin. SERVICE BRAKES, AIR:DISC:PADS. sbw4205 Bendix Air Disc Brake Thermal Overload Issues
SF-483-A2013-08-28. Service bulletin. PARKING BRAKE. DAIMLER TRUCKS: ON CERTAIN TRUCKS, ENGINE MAY NOT RECEIVE COMPLETE PARK BRAKE ENGAGED INPUT SIGNAL FROM ELECTRONIC CONTROL CENTER (ECC), AND WILL BE MODIFIED, BY MOVING PARK BRAKE INPUT SIGNAL TO AN INDEPENDENT AIR SWITCH. MODEL 2010-2013 4700, 4900, 6900. *PE
WSB-42-052012-10-24. Service bulletin. SERVICE BRAKES, AIR:DISC:CALIPER; SERVICE BRAKES, AIR:DISC. WESTERN STAR: AN ISSUE WITH THERMAL OVERLOAD ON BENDIX AIR DISC BRAKES WHERE ABS SENSOR WIRES MELTS, BRAKE ACTUATOR FAILS TO PROPERLY OPERATE DUE TO VENT HOLE IN BOTTOM NOT OPENING, CALIPERS COATED WITH RED OR BRIGHT ORANGE DUST AND TAPPED AND/OR GUIDE PIN BOOTS MELTED OR OTHERWISE SHOWS HEAT DAMAGE. MODELS CONSTELLATION, 4700, 4800, 4900, 5900 AND 6900. NO MODEL YEARS LISTED. *PE
WSB-42-62012-07-28. Service bulletin. SERVICE BRAKES, AIR:DRUM. WESTERN STAR: WHEN APPLYING THE BRAKES, SOME TRUCKS WILL EXPERIENCE SEVERE SHAKING OR SHIMMYING. MODELS CONSTELLATION, 4700, 4800, 4900, 6900 AND 5900. NO MODEL YEARS LISTED. *PE UPDATED 11/1/12. *PE

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