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Service bulletin SF664

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 id10241576
Published by NHTSA2023-09-02
Manufacturer's numberSF664
Manufacturer's date2023-08-07
NHTSA componentVISIBILITY; EQUIPMENT

NHTSA's summary

Field Service Campaign for Auxiliary Heater

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

Equipment and accessories, Glass, wipers and mirrors

Vehicles listed
FREIGHTLINER CASCADIA2023
FREIGHTLINER CORONADO2023
WESTERN STAR 49X2023
WESTERN STAR 57X2023

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

Recalls for the same vehicles and component
20230462023-02-09. Accessories
23V0630002023-02-09. EQUIPMENT

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
TSB-83-163-FTL2026-10-05. Service bulletin. Technical Service Bulletin for HVAC Stops Cooling
FleetCom_Hood Tilt CPC2026-04-03. Other. Fleet Communications for Hood Tilt CPC update and OI Comfort Mode parameters
SS3076-FTL2025-11-05. Other. Service Solution for P4 Main Mirror Arm Covers Loose - Falling Off
CXA_8_25_HVAC Stops2025-09-02. Other. CX Advocate for HVAC stops cooling (TSB-83-163-FTL)
TSB83-163-FTL2025-08-02. Service bulletin. Technical Service Bulletin for HVAC Stops Cooling
SS3142-FTL2024-12-04. Other. Service Solution for J1939 CAN issues for vehicles equipped w/ Bendix Side Radar w/ expanded field of view
MYCOM_07192024-22024-08-02. Other. My Communications for New Espar HS3 Heater and Extreme Insulation
SF6732024-04-02. Service bulletin. Field Service Campaign for Common Telematics Platform (CTP) Installation and Initialization
SF6792024-03-06. Service bulletin. Revised Field Service Campaign for Virtual Technician Module. REVISION: The parts table has been updated.
ICI24-0042024-03-06. Service bulletin. Important Campaign Information letter for SF679 Bulletin Revision. REVISION: The parts table has been updated.