Service bulletins for the 2019 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.
771 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Electrical system are shown. Show all
| CALFTL54-004 | 2021-03-31. Service bulletin. ELECTRICAL SYSTEM. Customer Advisory Letter for Customer Access to Fused Battery Power and Ground inside a Cascadia Cab vehicles built without a cab load disconnect switch (CLDS). |
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| CALFTL54-015 | 2021-03-26. Service bulletin. ELECTRICAL SYSTEM. Customer Advisory Letter for Disabling the Park Brake Drag ICU Warning Message. |
| SS3071FTL2021 | 2021-03-25. Service bulletin. ELECTRICAL SYSTEM. Service Solution for New Cascadia Maintenance Indicator Issues. Some customers have reported incorrect or undesired pop up messages occurring in the ICC5 display and have requested field correction. |
| SS3070FTL2021 | 2021-03-25. Service bulletin. ELECTRICAL SYSTEM; LANE DEPARTURE. Service Solution for P4 New Cascadia Side Guard Radar Harness Moisture Intrusion. The 6-pin connector located at the side radar can show signs of water intrusion if wires are strained at the connector. Wires without strain relief can allow water to intrude past the seals, resulting in corrosion on the terminals and pins within the connector. Active fault codes for lost communication with RDU and SRRM, plus other codes for CPC, CGW and ABS. |
| WP21-007 | 2021-03-24. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Warranty Policy Letter for battery tags. DTNA determined that since adopting the AutoMeter BCT-460DTNA Powernet Assessment Tool (AutoMeter) as the required powernet system tester, not all battery tags have to be retained support Warranty-related claims. |
| TechTalk9016 | 2021-03-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Tech Talk discussion on Alternator Overcharging with A_C switch On only. |
| TechTalk9049 | 2021-03-05. Service bulletin. ELECTRICAL SYSTEM. Tech Talk discussion on CASCADIA FAULT 168 FMI 9. |
| TechTalk8112 | 2021-03-03. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Tech Talk discussion on chasing a delay crank on P4. |
| TechTalk4855 | 2021-03-02. Service bulletin. VISIBILITY; ELECTRICAL SYSTEM. Tech Talk continued discussion for P4 Next Gen Cascadia dome lights stay on while driving. |
| P4HALOGENUPDATE | 2021-03-02. Service bulletin. VISIBILITY; ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Customer Maintenance Enhancements for the P4 Halogen Lamp replacement procedure. |
| TechTalk8160 | 2021-03-02. Service bulletin. ELECTRICAL SYSTEM. Tech Talk discussion on Alternator Overcharging with A/C switch On only. |
| SS1034884 | 2021-02-27. Service bulletin. ELECTRICAL SYSTEM. Service Solution for P4 New Cascadia Unintended Dome Lamp Activation Due To Poor Connections at the sSAM. |
| WI21-006 | 2021-02-26. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Warranty Information Letter for Detroit NOx Sensor Circuit Fault Codes - Claim Guidelines. |
| TechTalk5827 | 2021-02-04. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN; ENGINE AND ENGINE COOLING. Tech Talk discussion on P4 No crank intermittent *RESOLVED*. |
| TechTalk8049 | 2021-02-03. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Tech Talk discussion on New Cascadia No crank No start intermittent. |
| SS1034492 | 2021-01-28. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Superseded Service Solution for New Cascadia P4 Coolant Level Wiring Damage. Fault codes can be generated if wiring to the coolant level sensor becomes damaged. This Service Solution has been superseded to service bulletin SB 54-337. Please see the service bulletin for the most current information. |
| SB54-342 | 2021-01-26. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Freightliner Service Bulletin for Rain/Light Sensor Removal. On New Cascadia vehicles, a delay in the timing of communication (hand shake) between the rain/light sensor (RLS) and sSAM generates fault code "33/521940/12 - rain/light sensor - general DTC timeout", which causes the sensor to stop working. |
| SB54-337 | 2021-01-22. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Freightliner Service Bulletin for Coolant Level Sensor Wiring Repair. On New Cascadia vehicles, depending on the tension applied to the harness located at the coolant level sensor and its mounting locations, wiring damage can occur, resulting in one or more of the below listed fault codes. |
| Techtalk7997 | 2020-12-31. Service bulletin. EXTERIOR LIGHTING; ELECTRICAL SYSTEM. Tech Talk discussion on trailer lights fuse. |
| SS1034868 | 2020-12-30. Service bulletin. ELECTRICAL SYSTEM. Service Solution for flickering overhead reading light during slight movement of the steering wheel for New Cascadia with DR 40SI alternators, possibly other alternators as well. The flickering overhead light is considered a nuisance, and can be simply eliminated by either adding an accessory to one of the power receptacles, or running an additional ground in one of the sleeper bunk lamps to suppress the ripples on the circuit. |
| CALFTL54-014 | 2020-12-01. Service bulletin. ELECTRICAL SYSTEM. Customer Advisory Letter for Dome Lamps Do Not Illuminate When the Right-Hand Door is Opened. |
| SF610REV2 | 2020-11-26. Service bulletin. ELECTRICAL SYSTEM. Revised Field Service Campaign for Cascadia CTP Initialization. Certain vehicles equipped with DTNA's proprietary Common Telematics Platform (CTP) are not communicating and, therefore, are unable to benefit from over-the-air software updates. The CTP will be initialized. REVISION: The work instructions have been updated to add a step to take a screenshot of the DiagnosticLink window to keep on file. |
| SF576REV5 | 2020-11-26. Service bulletin. ELECTRICAL SYSTEM. Revised Field Service Campaign sent out to customers to fix Common Telematics Platform (cTP), and Truck Data Center (TDC) communication issues. Certain vehicles built with DTNA's proprietary Common Telematics Platform (CTP), and Truck Data Center (TDC) are not communicating or have outdated software that cannot be updated and, therefore, are unable to benefit from over-the-air software updates. REVISION: The work instructions have been updated to add steps in the work instruction to take a screenshot of the DiagnosticLink window to keep on file, and put a mark through the label of the old CTP to prevent reinstalling the old CTP. |
| TechTalk7737 | 2020-11-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Tech Talk discussion on Diagnostic Link connection issues with D20M8. |
| TechTalk7695 | 2020-11-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Tech Talk discussion on Virtual Tech connection issues. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.