2020 WESTERN STAR 49X
10 recalls, 0 complaints - 22 TSBs
26V079000 Feb 11, 2026
ELECTRICAL SYSTEM:12V/24V/48V BATTERY
Defect Description
Daimler Trucks North America (DTNA) is recalling certain 2020-2027 Western Star 49X and 2021-2027 Western Star 47X vehicles. A stud connecting the battery to the starter at the frame rail may have been incorrectly installed or may corrode, which can cause a short circuit.
Consequence
A short circuit increases the risk of a fire.
Remedy
Dealers will repair the studs, free of charge. Owner notification letters were mailed May 22, 2026. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is F1029. This recall replaces and expands NHTSA recall number 25V326. Vehicles already repaired under the pre... Read more
25V760000 Nov 4, 2025
SUSPENSION:CRITICAL FASTENERS
Defect Description
Daimler Trucks North America, LLC (DTNA) is recalling certain 2020-2026 Western Star 49X, Freightliner Business Class M2, Freightliner 114SD, Freightliner 108SD, 2021-2026 Western Star 47X, 2021-2023 Freightliner 122SD, 2022 Western Star 48X, and 2023 Western Star 4700 vehicles. The axle clamp faste... Read more
Consequence
A loss of vehicle control increases the risk of a crash.
Remedy
Dealers will inspect and tighten the fasteners, as necessary, free of charge. Owner notification letters were mailed December 29, 2025. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is F1027.
25V326000 Jun 23, 2025
ELECTRICAL SYSTEM:12V/24V/48V BATTERY
Defect Description
Daimler Trucks North America (DTNA) is recalling certain 2020-2026 Western Star 49X and 2021-2026 Western Star 47X vehicles. A stud connecting the battery to the starter at the frame rail may have been incorrectly installed, which can cause a short circuit.
Consequence
A short circuit increases the risk of a fire.
Remedy
DTNA will inspect and replace damaged cables and loose hardware. In addition, DTNA will properly tighten hardware and install dielectric tape. All repairs will be performed, as necessary, free of charge. Owner notification letters were mailed July 1, 2025. Owners may contact DTNA customer service at... Read more
24V668000 Sep 10, 2024
EXTERIOR LIGHTING:BRAKE LIGHTS
Defect Description
Daimler Trucks North America, LLC (DTNA) is recalling certain 2024-2025 Freightliner 108SD, 2022-2025 Freightliner 114SD, Freightliner Business Class M2, 2025 Freightliner eM2, 2020-2025 Western Star 49X, 2021-2025 Western Star 47X, and 2022-2025 Western Star 57X vehicles that may be upfitted with a... Read more
Consequence
Brake lights that fail to illuminate can fail to indicate to other drivers that the vehicle is slowing down, increasing the risk of a crash.
Remedy
Dealers will update the ABA software, free of charge. Owner notification letters were mailed October 24, 2024. Owners may contact DTNA customer service at 800-745-8000. DTNA's number for this recall is F1009.
23V208000 Mar 28, 2023
EXTERIOR LIGHTING
Defect Description
Daimler Trucks North America, LLC (DTNA) is recalling certain 2020-2021 Freightliner Cascadia and Western Star 49X vehicles. The hazard warning lights may flash improperly during an Advanced Braking Assist event. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle... Read more
Consequence
Hazard warning lights that flash improperly may cause confusion for other drivers, increasing the risk of a crash.
Remedy
Dealers will update the software controlling the hazard warning lights, free of charge. Owner notification letters were mailed May 18, 2023. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL851.
23V073000 Feb 10, 2023
SERVICE BRAKES, AIR:ANTILOCK:MODULATOR
Defect Description
Daimler Trucks North America, LLC (DTNA) is recalling certain 2017-2023 Freightliner Cascadia, 2020-2023 Western Star 49X, 2021-2023 Western Star 47X, and 2022 Freightliner 114SD vehicles. The brake modulator valves on the front axle may corrode and cause the vehicle to pull to the affected side du... Read more
Consequence
Brakes that pull to one side may cause a sudden change in vehicle direction, increasing the risk of a crash.
Remedy
Dealers will inspect and replace the front brake modulator valves, as necessary. Some vehicles will have a software update which will alert driver when a replacement is required. All repairs will be performed free of charge. Owner notification letters were mailed beginning October 13, 2023. Owne... Read more
22V817000 Nov 1, 2022
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
Defect Description
Daimler Trucks North America, LLC (DTNA) is recalling certain 2017-2023 Freightliner Cascadia, 2020-2022 Freightliner Business Class M2, and 2022 Freightliner 114SD, and 2020-2023 Western Star 49X, 2021-2023 Western Star 47X, and 2021-2022 Western Star 57X vehicles. The brake modulator valves on th... Read more
Consequence
Brakes that pull to one side during an ACC braking event may cause a sudden change in vehicle direction, increasing the risk of a crash.
Remedy
Dealers will inspect and replace the front brake modulator valves, as necessary. Some vehicles will have a software update which will alert driver when a replacement is required. All repairs will be performed free of charge. Owner notification letters were mailed beginning October 16, 2023. DTNA... Read more
22V654000 Aug 29, 2022
STRUCTURE:BODY:HOOD
Defect Description
Daimler Truck North America, LLC (DTNA) is recalling certain 2020-2023 47X and 49X vehicles. The hood bezel covers may detach.
Consequence
Detached hood bezel covers may cause a road hazard and increase the risk of a crash.
Remedy
Dealers will inspect and install rivets on the hood bezel covers, as necessary, free of charge. Owner notification letters were mailed May 26, 2023. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-951.
22V230000 Apr 8, 2022
VISIBILITY:WINDSHIELD WIPER/WASHER:LINKAGES
Defect Description
Daimler Trucks North America, LLC (DTNA) is recalling certain 2020-2022 Western Star 49X and 2021 Western Star 47X vehicles. The windshield wiper linkages may break, causing the windshield wipers to fail.
Consequence
Inoperative windshield wipers can reduce visibility in certain driving conditions, increasing the risk of a crash.
Remedy
Dealers will inspect and replace the windshield wiper arm and linkage parts, as necessary, free of charge. Owner notification letters were mailed June 6, 2022. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-926.
22V227000 Apr 7, 2022
STRUCTURE:BODY
Defect Description
Daimler Trucks North America, LLC (DTNA) is recalling certain 2021-2023 Western Star 47X, 2020-2023 Western Star 49X, and 2021-2022 Western Star 57X vehicles equipped with side air intakes on the hood. The stainless steel cover on the side air intake may loosen and detach from the vehicle.
Consequence
A detached side air intake cover may cause a road hazard and increase the risk of a crash.
Remedy
Dealers will replace the stainless steel cover, free of charge. Owner notification letters were mailed August 8, 2022. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-925.
No complaints found for this vehicle.
Technical Service Bulletins, 2020 WESTERN STAR 49X
22 manufacturer communications from 15 unique bulletins. TSBs describe known problems and recommended fixes from the manufacturer.
Most Affected Components
| Component | Bulletins |
|---|---|
| 110000 ELECTRICAL SYSTEM | 5 |
| 350000 EQUIPMENT | 5 |
| 060000 ENGINE AND ENGINE COOLING | 4 |
| 130000 VISIBILITY | 2 |
| 200000 WHEELS | 2 |
| 180000 VEHICLE SPEED CONTROL | 2 |
| 120000 EXTERIOR LIGHTING | 1 |
| 210000 TRAILER HITCHES | 1 |
SS3144-FTL
Apr 25, 2024
060000 ENGINE AND ENGINE COOLING
Service Solution for DEF Pump Wiring for Cummins CM2450 Engine Controller
SF673
Mar 7, 2024
350000 EQUIPMENT
Field Service Campaign for Common Telematics Platform (CTP) Installation and Initialization
ICI24-006
Feb 20, 2024
060000 ENGINE AND ENGINE COOLING
Important Campaign Information letter for FL974 - Revised Bulletin & Population
FL974
Feb 20, 2024
060000 ENGINE AND ENGINE COOLING
Revised Emissions Recall: Cummins DEF Sensor Shortage. REVISION: Some vehicles formerly in Group F have been moved to Group G and have been assigned a new part number as specified in Table 1. An SRT for 'Calibration Code Only: Update or Con
ICI24-007
Feb 14, 2024
180000 VEHICLE SPEED CONTROL
Important Campaign Information letter for SF669 Campaign Suspended
FL974
Jan 19, 2024
060000 ENGINE AND ENGINE COOLING
Emissions Recall: Cummins DEF Sensor Shortage
SF669
Dec 19, 2023
180000 VEHICLE SPEED CONTROL
Field Service Campaign for Adaptive Cruise Control
SS759-WST
Nov 30, 2023
120000 EXTERIOR LIGHTING
Service Solution for 47X & 49X Headlamp Marker Light Strobing or Flickering
SS754-WST2023
Sep 29, 2023
210000 TRAILER HITCHES
Service Solution for 49X and 47X Web Mounted 5th Wheel Ramps
SBW54-083
Jul 13, 2023
130000 VISIBILITY
Revised Service Bulletin for HVAC Software Updates. Description of Revisions: This bulletin replaces the version dated 06/21/2022. The model applicability list and the general information have been updated.
SF672
Jun 2, 2023
350000 EQUIPMENT
Field Service Campaign for Common Telematics Platform Software Update
SF672
Jun 2, 2023
110000 ELECTRICAL SYSTEM
Field Service Campaign for Common Telematics Platform Software Update
SBW54-089
Nov 9, 2022
200000 WHEELS
Updated Western Star Service Bulletin for Tire Pressure Monitoring System (TPMS) Water Intrusion. This bulletin replaces the version dated 08/17/2022. Information about the protective boot has been updated.
MYCOM_11012022
Nov 1, 2022
350000 EQUIPMENT
My Communications for SF625 and SF657 Pre-Flashed USB Tools. The download files for SF625 and SF657 are no longer available in our download center. In order to perform these updates you will need to order the Pre-Flashed USB tools from the
MYCOM_11012022
Nov 1, 2022
110000 ELECTRICAL SYSTEM
My Communications for SF625 and SF657 Pre-Flashed USB Tools. The download files for SF625 and SF657 are no longer available in our download center. In order to perform these updates you will need to order the Pre-Flashed USB tools from the
SBW54-090
Sep 28, 2022
110000 ELECTRICAL SYSTEM
Western Star Service Bulletin for ABS mBSP ECU Software Update Fault Code 629-11. New Cascadia vehicles manufactured from September 12, 2018 through March 22, 2021 that are equipped with WABCO Anti-Lock Braking System (ABS) controllers log
ICI22-044
Sep 23, 2022
350000 EQUIPMENT
Important Campaign Information Letter for SF657 ??A?A? Revised Bulletin. Newest Revision: A screenshot of the DiagnosticLink screen showing in Fig.15 showing 'Activation OK' must be kept on file with the repair order. This letter is to info
ICI22-044
Sep 23, 2022
110000 ELECTRICAL SYSTEM
Important Campaign Information Letter for SF657 ??A?A? Revised Bulletin. Newest Revision: A screenshot of the DiagnosticLink screen showing in Fig.15 showing 'Activation OK' must be kept on file with the repair order. This letter is to info
SBW54-089
Aug 17, 2022
200000 WHEELS
Western Star Service Bulletin for Tire Pressure Monitoring System (TPMS) Water Intrusion
SF657
Jun 23, 2022
350000 EQUIPMENT
Field Service Campaign for Freightliner and Western Star CTP Software Update
SF657
Jun 23, 2022
110000 ELECTRICAL SYSTEM
Field Service Campaign for Freightliner and Western Star CTP Software Update
SBW54-083
Jun 20, 2022
130000 VISIBILITY
Western Star Service Bulletin for HVAC Software Updates
WESTERN STAR 49X - All Years Overview
Complete safety history for the WESTERN STAR 49X across all model years (2020, 2027).
79
Total Recalls
1
Total Complaints
0
Investigations
0
Reported Crashes
0
Reported Fires
0
Reported Deaths