# Service bulletins for the 2021 Freightliner Cascadia

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.

509 bulletins from NHTSA, as of 2026-10-19.

- [TEM\-11\-00001](/bulletins/11035536.md), 2026-08-03, Other: FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; FORWARD COLLISION AVOIDANCE: WARNINGS. Truck Equipment Manufacturer upfit guide for Detroit Assurance Forward Radar Relocation and Adjustment
- [TSB\-42\-080\-FTL](/bulletins/11035527.md), 2026-08-03, Service bulletin: POWER TRAIN. Revised Technical Service Bulletin for ABS Wheel Speed Fault Code Correction for MBSP Equipped Vehicles. Updated frequently asked questions.
- [CXA 06\_26\_Utility Lamp](/bulletins/11034519.md), 2026-07-06, Other: EXTERIOR LIGHTING. CX Advocate for Utility Lamp water intrusion
- [TSB\-26\-057\-FTL](/bulletins/11033103.md), 2026-06-01, Service bulletin: POWER TRAIN. Revised Technical Service Bulletin for DT12 OVX Transmission Refresh
- [CXA 04\_26\_Side Guard](/bulletins/11031981.md), 2026-05-02, Other: LANE DEPARTURE: BLIND SPOT DETECTION. CX Advocate for P4 Side Guard Assist On/Off Menus and Trailer Functionality \(TSB\-54\-381\-FTL\)
- [ICI26\-006](/bulletins/11031973.md), 2026-05-02, Other: POWER TRAIN. Important Campaign Information for SF706 \- Revised, Reactivated
- [SF706\-DLR LTR](/bulletins/11031972.md), 2026-05-02, Service bulletin: POWER TRAIN. Revised Field Service campaign for Cascadia Axle Conversion: Adaptive Tandem \(AT\) 6x4 to New Final Drive \(NFD\)
- [SF706\-Bulletin](/bulletins/11031971.md), 2026-05-02, Service bulletin: POWER TRAIN. Revised Field Service campaign for Cascadia Axle Conversion: Adaptive Tandem \(AT\) 6x4 to New Final Drive \(NFD\)
- [FleetCom 1\_Solenoid](/bulletins/11031966.md), 2026-05-02, Other: ELECTRICAL SYSTEM. Fleet Communications for solenoid issues
- [CXA 03\_26\_ABS LA Fault](/bulletins/11030500.md), 2026-04-02, Other: SERVICE BRAKES. CX Advocate for 1810/02 ABS longitudinal acceleration fault \(TSB\-54\-104\-WST,TSB\-54\-379\-FTL\)
- [ICI26\-003](/bulletins/11030493.md), 2026-04-02, Other: POWER TRAIN. Important Campaign Information letter for SF706 \- campaign suspended
- [FleetCom\_Frnt Susp Bush](/bulletins/11029633.md), 2026-03-05, Other: SUSPENSION. Fleet Communications for composite front suspension bushing
- [FleetCom\_SF706](/bulletins/11029522.md), 2026-03-04, Other: POWER TRAIN. Fleet Communications for SF706 \- Cascadia axle conversion
- [FleetCom\_ESC Warning Lamp](/bulletins/11029519.md), 2026-03-04, Other: SERVICE BRAKES. Fleet Communications for TSB\-54\-379\-FTL \& TSB\-54\-104\-WST ESC warning lamp and ECU replacement
- [SF706\-OWN LTR](/bulletins/11029516.md), 2026-03-04, Service campaign: POWER TRAIN. Field Service campaign for Cascadia Axle Conversion: Adaptive Tandem \(AT\) 6x4 to New Final Drive \(NFD\)
- [SF706\-DLR LTR](/bulletins/11029515.md), 2026-03-04, Service campaign: POWER TRAIN. Field Service campaign for Cascadia Axle Conversion: Adaptive Tandem \(AT\) 6x4 to New Final Drive \(NFD\)
- [MyCom\_02062026\-1](/bulletins/11029512.md), 2026-03-04, Other: FUEL/PROPULSION SYSTEM. My Communications for update on UFU R61709 Fuel Filters
- [SF706\-Bulletin](/bulletins/11029509.md), 2026-03-04, Service campaign: POWER TRAIN. Field Service campaign for Cascadia Axle Conversion: Adaptive Tandem \(AT\) 6x4 to New Final Drive \(NFD\)
- [TSB\-26\-055\-FTL](/bulletins/11028073.md), 2026-02-03, Service bulletin: POWER TRAIN. Revised Technical Service Bulletin for DT12 Excessive Wear
- [TSB\-54\-379\-FTL](/bulletins/11028071.md), 2026-02-03, Service bulletin: SERVICE BRAKES. Revised Technical Service Bulletin for ESC Warning Lamp and ECU Replacement
- [CXA\_01\_26\_Trans Support](/bulletins/11028069.md), 2026-02-03, Other: POWER TRAIN. CX Advocate for Aftermarket Transmission Support
- [TSB\-54\-379\-FTL](/bulletins/11028064.md), 2026-02-03, Service bulletin: SERVICE BRAKES. Technical Service Bulletin for ESC Warning Lamp and ECU Replacement
- [TSB\-26\-055\-FTL](/bulletins/11028063.md), 2026-02-03, Service bulletin: POWER TRAIN. Technical Service Bulletin for DT12 Excessive Wear
- [TSB\-26\-052\-FTL](/bulletins/11028062.md), 2026-02-03, Service bulletin: POWER TRAIN. Technical Service Bulletin for DT12 PTO Upfit
- [TSB\-00\-046\-FTL](/bulletins/11028061.md), 2026-02-03, Service bulletin: UNKNOWN OR OTHER. Technical Service Bulletin for Cascadia Generations

More: [the next page](/v1/vehicles/2021_freightliner_cascadia/bulletins?cursor=2026-02-03_11028061) (JSON)

JSON: [/v1/vehicles/2021_freightliner_cascadia/bulletins](/v1/vehicles/2021_freightliner_cascadia/bulletins)

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