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Service bulletin CALWS83-001

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10201680
Published by NHTSA2021-09-29
Manufacturer's numberCALWS83-001
Manufacturer's date2021-09-10
NHTSA componentELECTRICAL SYSTEM; VISIBILITY

NHTSA's summary

Customer Advisory Letter for HVAC Actuator Wiring Harness. The wiring harness of the actuator of the fresh air recirculation door, shown in Fig. 1, on Western Star vehicles equipped with Red Dot HVAC systems should be inspected for signs of water intrusion and corrosion.

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

Electrical system, Glass, wipers and mirrors

Vehicles listed
WESTERN STAR 47002006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
WESTERN STAR 48002006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
WESTERN STAR 49002006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20260912026-03-03. Electrical
20216972021-11-12. Electrical
21V8820002021-11-12. ELECTRICAL SYSTEM:WIRING
20211722021-03-24. Electrical
21V2060002021-03-24. ELECTRICAL SYSTEM:WIRING
20202172020-05-18. Electrical
20V2810002020-05-18. ELECTRICAL SYSTEM:WIRING
19V7920002019-11-04. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW
19V1710002019-03-05. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
18V1910002018-03-26. ELECTRICAL SYSTEM:WIRING

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SBW83-0302022-07-02. Service bulletin. Updated Western Star Service Bulletin for HVAC Actuator Replacement
SBW83-0302022-06-04. Service bulletin. Western Star Service Bulletin for HVAC Actuator Replacement. The wiring harness of the actuator of the fresh air recirculation door on Western Star vehicles equipped with Red Dot HVAC systems should be inspected for signs of water intrusion and corrosion.
CALWS83-001REV2022-01-04. Service bulletin. HVAC Actuator Wiring Harness. Revision History: Service kit part number changed from RDH RD5 17147 0 to WWS RD-3-9069-0 on 12/9/21. The wiring harness of the actuator of the fresh air recirculation door, shown in Fig. 1, on Western Star vehicles equipped with Red Dot HVAC systems should be inspected for signs of water intrusion and corrosion.
ICI21-0302021-11-03. Service bulletin. SF626 Western Star Window Replacement Inspection Notification. This letter is to inform you that Field Service Campaign SF626 Western Star Window Replacement Inspection Notification campaign was released.
SBW54-0802021-06-29. Service bulletin. Western Star Service Bulletin for Key Fob ID Retention. Key fobs for remote keyless entry on Western Star vehicles are delivered in packages that include a unique ID for the fob. The ID is required when pairing the key fob with a vehicle.
SS708-WST20212021-06-26. Service bulletin. Western Star Service Solution for Low Voltage Disconnect (LVD) Troubleshooting: Western Star 5700 and New 4700.
CALWS32-0012021-05-25. Service bulletin. Customer Advisory Letter on Transverse Track Rod Tower Bracket
WSTCAE172-20202021-05-18. Service bulletin. Tractor Reflective Devices
WSTCAE170-20192021-05-18. Service bulletin. New Valeo A/C Compressor
TSN 88-072021-05-17. Service bulletin. Western Star 4700 non removable bug screen with additional coverage to the bumper - TSN