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Service bulletins for the 2020 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.

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

By type

By component

Only bulletins with component: Driver assistance are shown. Show all

Bulletins, newest first
TechTalk80642021-02-03. Service bulletin. LANE DEPARTURE; FORWARD COLLISION AVOIDANCE. Tech talk discussion on P4 throwing warning lights in heavy rain possible Radar.
Techtalk79832020-12-31. Service bulletin. FORWARD COLLISION AVOIDANCE; LANE DEPARTURE. Tech Talk discussion on collision system audible warning sound not working.
Techtalk73432020-12-31. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); WHEELS. Tech Talk discussion on 2020 P4 COMPLAINT IS THAT TRACTION CONTROL LIGHT COMES ON.
TechTalk77862020-11-03. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; FORWARD COLLISION AVOIDANCE; LANE DEPARTURE. Tech Talk discussion on p4 gcw04t flashed to 19.45.1. Forward and lane camera not detected.
WI20-0152020-08-31. Service bulletin. LANE DEPARTURE. Warranty Information Letter for Active Lane Assist Steering Column - Providing Serial Number During Claim Entry. The serial number for an ALA steering column is scanned at installation and displays in OWL on the Major Components screen. Effective for repairs performed on or after August 24, 2020, if a factory-installed ALA steering column is replaced due to a warrantable failure, the serial number will be required on the Failure tab. If the replacement serial number is not entered on the claim, a red error message will display.
CALABSECU2020-06-06. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). Customer Advisory Letter for ABS ECU Software Update. The Enhanced Stability Control (ESC) function within the ABS module that applies to the vehicles in your possession needs to be updated for the axle spread values. The ESC with the current values functions as it should, but should be updated to ensure proper calibration in the future.
SB54-3272020-04-17. Service bulletin. BACK OVER PREVENTION; ELECTRICAL SYSTEM. Service Bulletin for Lengthening the Backup Light Harness. Though the backup light harness is long enough to connect to the backup light switch, it may be short enough that the wire seals in the connector can be stressed. Moisture entering through the seals can cause corrosion, resulting in a bad connection and/or failure of the switch. As a result, backup lights and, if equipped, the backup alarm, may not function when the vehicle is shifted into reverse.
SB54-3252020-04-17. Service bulletin. LANE DEPARTURE. Service Bulletin for New Cascadia ICUC Active Lane Assist (ALA) Dash Menu Discrepancy. New Cascadia vehicles equipped with Detroit Assurance 5.0 that are not equipped with Active Lane Assist (ALA) may incorrectly display ALA availability in the ICUC quick access menu. The following procedure will provide a parameter update to correct the ICUC menu display.
SF5982020-02-15. Service bulletin. BACK OVER PREVENTION. Field Service Campaign for Cascadia Backup Alarms. On certain, vehicles the backup alarm will not sound when the headlights are in the ON position. The software controlling the backup alarm will be updated.
WP20-001REV2020-02-15. Service bulletin. POWER TRAIN; LANE DEPARTURE; SUSPENSION; EQUIPMENT. Revision to a Warranty Policy Letter announcing the One Stop Supplier Extended Program Launch. The One Stop Supplier Extended Program streamlines the claim filing process because with One Stop Supplier Extended, the service network will file claims for some supplier-supported coverages in OWL. Revisions are in blue.
WP20-0012020-01-21. Service bulletin. UNKNOWN OR OTHER; POWER TRAIN; SUSPENSION; LANE DEPARTURE. Warranty Policy Letter announcing the One Stop Supplier Extended Program Launch. The One Stop Supplier Extended Program streamlines the claim filing process because with One Stop Supplier Extended, the service network will file claims for some supplier-supported extended coverages in OWL.
SF5902019-11-21. Service bulletin. TRACTION CONTROL SYSTEM. Field Service Campaign to modify vehicles whose Automatic Traction Control (ATC) will require a software update.

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