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Service bulletins for the 2015 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.

617 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
326-152018-06-18. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING; EQUIPMENT:ELECTRICAL. 326-15 Main Shaft Speed Sensor
518-142018-06-18. Service bulletin. ENGINE; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. 518-14 FMI 1, 18: Regen Temperature- Out Of Range Low
503-142018-06-18. Service bulletin. ELECTRICAL SYSTEM:WIRING; EQUIPMENT. 503-14 FMI 3, 4: High Side Digital Output 3 Circuit Failed High
0405-182018-06-18. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). 0405-18 Symptom Diagnostics - Range Up or Down Shift Issue
0402-182018-06-18. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ELECTRICAL SYSTEM. 0402-18 SPN 625 (CPC) (GHG14)
0401-182018-06-18. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 0401-18 SPN 1231 (MCM) (EPA10 GHG14)
sbw54392018-06-18. Service bulletin. ELECTRICAL SYSTEM. sbw5439 RX Module Fault Codes
sbw49112018-06-11. Service bulletin. ELECTRICAL SYSTEM. sbw4911 DEF Gauge Reading Incorrectly
1102-172018-06-11. Service bulletin. ELECTRICAL SYSTEM. SPN 157 (MCM) (GHG17)
DOC-10333332018-06-11. Service bulletin. ELECTRICAL SYSTEM. SS 1033333 - WST ECC Replacement Jumper Harness Installation.
0405-172018-06-11. Service bulletin. ELECTRICAL SYSTEM. SPN 521222 (TCM)
0408-17 SPN 52422018-06-11. Service bulletin. ELECTRICAL SYSTEM. FMI 2- Automatic Gear Selection - Incompatible or missing dataset
1207-162018-04-16. Service bulletin. ELECTRICAL SYSTEM. 1207-16 SPN 4363 (ACM) (EPA10 GHG14)
15TS162018-03-13. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 15TS16Rev1 EPA10 Reman MCM Improvement for Fault Codes SPN 651 to 656
sbu15042018-03-13. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. 39MT Starter Pinion Teeth Change for 2016 DD13 15 16
sb15182018-03-13. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. 39MT Starter Pinion Teeth Change for 2016 DD13 15 16
sbw15052018-03-13. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. 39MT Starter Pinion Teeth Change for 2016 DD13/15/16
15-0162018-03-05. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. 15-016-DLR New Essential Tool For CPWA, CPPRA, Ltd CPPRA, & DSDWC Parties: Cadex CA-12 Battery Tester
sbw54612018-03-05. Service bulletin. ELECTRICAL SYSTEM. sbw5461 Guidelines for Repairing or Replacing an Electrical Harness
sbw54302018-03-05. Service bulletin. ELECTRICAL SYSTEM. sbw5430 Disconnecting or Connecting Daytime Running Lights
719-142018-02-12. Service bulletin. ELECTRICAL SYSTEM. 719-14 SPN 84 (CPC) (GHG14)
710-142018-02-12. Service bulletin. ELECTRICAL SYSTEM. 710-14 SPN 96 (CPC) (GHG14)
711-142018-02-12. Service bulletin. ELECTRICAL SYSTEM. 711-14 SPN 107 (CPC) (GHG14
701-142018-02-12. Service bulletin. ELECTRICAL SYSTEM. 701-14 SPN 168 FMI 0 and 1 (IPPC)(GHG14
706-142018-02-12. Service bulletin. ELECTRICAL SYSTEM. 706-14 SPN 171 FMI 3, 4 (CPC)(GHG14)

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