Service bulletin DOC-1034500
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10165494 |
| Published by NHTSA | 2019-10-03 |
| Manufacturer's number | DOC-1034500 |
| Manufacturer's date | 2019-09-30 |
| NHTSA component | ENGINE AND ENGINE COOLING; EQUIPMENT:APPLIANCE:AIR CONDITIONER |
NHTSA's summary
Service Solution to fix AC cooling performance due to improper HVAC function.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Engine, Equipment and accessories, Heating and air conditioning
| WESTERN STAR 4700 | 2018, 2019, 2020 |
|---|---|
| WESTERN STAR 4800 | 2017, 2018, 2019, 2020 |
| WESTERN STAR 4900 | 2017, 2018, 2019, 2020 |
| WESTERN STAR 5700 | 2017, 2018, 2019, 2020 |
| WESTERN STAR 6900 | 2017, 2018, 2019, 2020 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 22V338000 | 2022-05-16. EQUIPMENT:OTHER:LABELS |
|---|---|
| 20V634000 | 2020-10-14. EQUIPMENT:OTHER:LABELS; TIRES |
| 20V211000 | 2020-04-10. EQUIPMENT:OTHER:LABELS |
| 19V792000 | 2019-11-04. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW |
| 18V581000 | 2018-08-30. ENGINE AND ENGINE COOLING:ENGINE:DIESEL |
| 2017636 | 2017-12-18. Accessories |
| 17V810000 | 2017-12-15. EQUIPMENT |
| 17V452000 | 2017-07-17. EQUIPMENT |
| 16V416000 | 2016-06-09. ENGINE AND ENGINE COOLING:ENGINE:DIESEL |
| 2016285 | 2016-06-06. Engine |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| CXA_10_25_Conmet Oil Pan | 2025-11-05. Other. CX Advocate for ConMet Oil Pan Insert Additional Issues |
|---|---|
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| CXA 2_25_Turbo Oil Drain | 2025-03-04. Other. CX Advocate for turbo oil drain cracking |
| CXA 2_25_NOx | 2025-03-04. Other. CX Advocate for NOx conversion low faults |
| TSB01-001-DDC | 2025-03-04. Service bulletin. Technical Service Bulletin for GHG17 and Newer DD Platform Heavy Duty Oil Pan Drain Plug Inserts |
| CXA 1_16_Turbo Oil Drain | 2025-01-29. Other. CX Advocate for turbo oil drain cracking |
| CXA 1_16_NOx | 2025-01-29. Other. CX Advocate for NOx conversion low faults |
| CXA 1_16_GATS2.4 | 2025-01-29. Other. CX Advocate for GATS2.4 being expanding to DD15 |
| CXA 1_16_DD13 Altitude | 2025-01-29. Other. CX Advocate for DD13 Gen 5 engines operating at high altitude experience EGR slow response fault. |
| CXA 1_16_CARB Truck Chec | 2025-01-29. Other. CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check. |