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Service bulletins for the 2022 Western Star 5700

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.

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

By type

By component

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
CXA 03_26_Surge Tank2026-04-02. Other. ENGINE. CX Advocate for discolored coolant surge tanks (24CSA-20)
CXA_10_25_Conmet Oil Pan2025-11-05. Other. ENGINE. CX Advocate for ConMet Oil Pan Insert Additional Issues
CXA_9_25_Tech Questions2025-10-03. Other. POWER TRAIN; ENGINE. CX Advocate for technical questions/issues raised
CXA_8_25_Tech Questions2025-09-02. Other. POWER TRAIN; ENGINE; UNKNOWN OR OTHER. CX Advocate for technical questions/issues raised
24CSA-19Rev2025-09-02. Other. ENGINE. Revised Customer Service Annoucement for No Trouble Found Heavy Duty Engine Product (HDEP) Oil Separator Leaks
CXA 4_25_DPF Outlet Temp2025-05-02. Other. ENGINE. CX Advocate for DPF Outlet Temp High Gen5 DD15 ENGINES
CXA 3_25_NOx2025-04-02. Other. ENGINE. CX Advocate for NOx conversion low faults
CXA 3_25_DPF Outlet Temp2025-04-02. Other. ENGINE. CX Advocate for DPF Outlet Temp High Gen5 DD15 ENGINES
CXA 2_25_NOx2025-03-04. Other. ENGINE. CX Advocate for NOx conversion low faults
TSB01-001-DDC2025-03-04. Service bulletin. ENGINE. Technical Service Bulletin for GHG17 and Newer DD Platform Heavy Duty Oil Pan Drain Plug Inserts
CXA 1_16_NOx2025-01-29. Other. ENGINE. CX Advocate for NOx conversion low faults
WI24-0192024-12-04. Warranty extension. ENGINE. Warranty Information letter for Detroit Line or Line Seal, High Pressure Fuel Injector Standard Repair Time Updates
SS1023366-Detroit2024-11-06. Other. ENGINE. Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines
24CSA-202024-11-06. Service bulletin. ENGINE. Customer Service Annoucement for Discolored Coolant Surge Tank on Heavy Duty Engine Product (HDEP)
24CSA-192024-11-06. Other. ENGINE. Customer Service Annoucement for Heavy-Duty Engine Product (HDEP) Oil Separator Leaks
SS1023366-Detroit2024-10-04. Other. ENGINE. Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines
CXA 8_24_Conmet Oil Pan2024-09-07. Other. ENGINE. CX Advocate for ConMet Oil Pan Insert Additional Failures
CXA 7_24_NOx2024-08-02. Other. ENGINE. CX Advocate for NOx conversion low faults. Update to CXA 6_24_NOx submission.
CXA 7_24_DPF Outlet Temp2024-08-02. Other. ENGINE. CX Advocate for DPF Outlet Temp High Gen5 DD15 ENGINES
CXA 7_24_Conmet Oil Pan2024-08-02. Other. ENGINE. CX Advocate for ConMet Oil Pan Insert Additional Failures
CXA 06_24_NOx2024-07-09. Other. ENGINE. CX Advocate communication for NOx conversion low faults
VSWP Customer Letter2024-06-22. Other. ENGINE. Customer letter regarding variable speed water pump.
SS3144-FTL2024-05-07. Service bulletin. ENGINE AND ENGINE COOLING. Service Solution for DEF Pump Wiring for Cummins CM2450 Engine Controller
SBW49-0202022-03-03. Service bulletin. ENGINE AND ENGINE COOLING. Western Star Service Bulletin for DEF Connector Reinforcement Caps
SF6312021-07-22. Service bulletin. ENGINE AND ENGINE COOLING. Field Service Campaign for Detroit Diesel Engine Fan Activation with A/C. On certain Freightliner and Western Star vehicles with Detroit Diesel engines, the engine fan fails to activate when the A/C pressure switch circuit is opened, resulting in poor A/C cooling performance at idle.

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