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

By type

By component

Only bulletins with component: Glass, wipers and mirrors are shown. Show all

Bulletins, newest first
SS3076-FTL2025-11-05. Other. VISIBILITY/WIPER. Service Solution for P4 Main Mirror Arm Covers Loose - Falling Off
SS3142-FTL2024-12-04. Other. LANE DEPARTURE: BLIND SPOT DETECTION; ENGINE; VISIBILITY/WIPER. Service Solution for J1939 CAN issues for vehicles equipped w/ Bendix Side Radar w/ expanded field of view
MYCOM_07192024-22024-08-02. Other. VISIBILITY/WIPER. My Communications for New Espar HS3 Heater and Extreme Insulation
SB54-3382023-08-05. Service bulletin. VISIBILITY. Revised Service Bulletin for Updating HVAC ECU Software to Fix Front HVAC Evaporator Freezing and Improve Espar Heater Cool Down. Description of Revisions: This bulletin replaces the version dated December 2021. The general information and warranty information has been updated.
SS3076-FTL20222022-08-02. Service bulletin. VISIBILITY. Main Mirror Arm Covers Loose - Falling Off. Lower arm covers designs have clips that hold the cover on but over time the clips can fail and allow the covers to become loose or fall off.
SB54-3562022-08-02. Service bulletin. VISIBILITY. Revised Freightliner Service Bulletin for HVAC Software Updates. Description of Revisions: This bulletin replaces the version dated 06/21/2022. Formatting errors have been corrected.
SB54-3562022-07-02. Service bulletin. VISIBILITY. Freightliner Service Bulletin for HVAC Software Updates
FP60-0552022-05-03. Service bulletin. VISIBILITY. Freightliner Parts Technical Bulletin for TufGlass Windshield Replacement. Effective April 20, 2022, owners of New Cascadia vehicles have the option of replacing factory-installed standard windshields with L20 TufGlass windshields.
SS3076-FTL20222022-02-05. Service bulletin. VISIBILITY. Main Mirror Arm Covers Loose - Falling Off. Lower arm covers designs have clips that hold the cover on but over time the clips can fail and allow the covers to become loose or fall off.
SS3076-FTL20212021-12-02. Service bulletin. VISIBILITY. Updated Service Solution for Main Mirror Arm Covers Loose -Falling Off. Lower arm covers designs have clips that hold the cover on but over time the clips can fail and allow the covers to become loose or fall off.
SB60-1752021-08-28. Service bulletin. VISIBILITY. Freightliner Service Bulletin for Auxiliary Mirror Vibration. Cascadia trucks built from January 1, 2017 through June 16, 2020 may be equipped with auxiliary mirrors that vibrate or wobble. A service kit (part number 22-77791-500) is available to resolve the issue.
SB54-3472021-08-28. Service bulletin. VISIBILITY. Freightliner Service Bulletin for Rain Sensor not Detecting Material on the Windshield. The rain light sensor (RLS) requires proper mounting and clear windshield visibility for auto wipe to function properly. It is always recommended when checking for proper operation of the RLS, that the sensor be properly fastened to its mounting bracket and that the gel is free of fingerprints and foreign material. Also ensure that no air bubble larger than 1 mm is present in the gel.
SB54-3382021-06-29. Service bulletin. VISIBILITY. Updated Freightliner Service Bulletin for Updating HVAC ECU Software to Fix Front HVAC Evaporator Freezing and Improve Espar Heater Cool Down. This bulletin replaces the version dated 03/03/2021. Information on software versions and the number of software updates needed has been updated.
FAB1542021-05-18. Service bulletin. VISIBILITY; STRUCTURE. Freightliner Action Bulletin FAB154 New options for Cascadia
FAB1462021-05-18. Service bulletin. VISIBILITY; EXTERIOR LIGHTING. Freightliner Action Bulletin FAB146 Cascadia LED headlights
FTLCAE167-20162021-05-17. Service bulletin. VISIBILITY; EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Important Update for Parked HVAC System Options
SS3076-FTL20212021-05-01. Service bulletin. VISIBILITY. Service Solution for P4 Main Mirror Arm Covers Loose - Falling Off. Lower arm cover designs have clips that hold the cover on but over time the clips can fail and allow the covers to become loose or fall off.
SB54-3222021-04-28. Service bulletin. VISIBILITY. Updated Freightliner Service Bulletin for Adjusting Automatic Temperature Control Range with Optimized Idle. This bulletin replaces the version dated 12/06/2019. Tables 3 and 4 have been updated. Steps to change and match HVAC desired settings have been updated.
SB54-3382021-03-24. Service bulletin. VISIBILITY; EQUIPMENT. Revised Freightliner Service Bulletin for Updating HVAC ECU Software to Fix Front HVAC Evaporator Freezing and Improve Espar Heater Cool Down. This bulletin replaces the version dated 12/23/2020. Information has been added about ParkSmart units and the instructions have been streamlined.
TechTalk48552021-03-02. Service bulletin. VISIBILITY; ELECTRICAL SYSTEM. Tech Talk continued discussion for P4 Next Gen Cascadia dome lights stay on while driving.
TechTalk70652021-03-02. Service bulletin. VISIBILITY. Tech Talk continued discussion on New Cascadia wipers unresponsive. Wipers don't work in the first two positions. Determined to be the LDW camera wire was caught underneath the top right portion of the windshield mounting plate, thus causing the rain/light sensor to not seat all the way against the windshield.
P4HALOGENUPDATE2021-03-02. Service bulletin. VISIBILITY; ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Customer Maintenance Enhancements for the P4 Halogen Lamp replacement procedure.
TechTalk76692021-02-03. Service bulletin. VISIBILITY. Tech Talk continued discussion on Parksmart Fan Control
TechTalk80292021-02-03. Service bulletin. VISIBILITY. Tech Talk discussion on Cab vent temperatures.
Techtalk70652021-02-02. Service bulletin. VISIBILITY. Tech Talk continued discussion on New Cascadia wipers unresponsive. Wipers don't work in the first two positions. Determined to be the LDW camera wire was caught underneath the top right portion of the windshield mounting plate, thus causing the rain/light sensor to not seat all the way against the windshield.

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