2021 WESTERN STAR 49X
13 recalls, 0 complaints - 144 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.
21V965000 Dec 13, 2021
FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL
Defect Description
Daimler Trucks North America, LLC (DTNA) is recalling certain 2020-2022 Western Star 4700, 2019-2022 Freightliner 114SD, 2021-2022 Western Star 49X, Freightliner Cascadia P4, 2022 Western Star 47X, 2021 Western Star WF110, 2020 Western Star WJ121, and 2019-2021 FCCC XCP Chassis vehicles. The fuel t... Read more
Consequence
A high pressure fuel leak in the presence of an ignition source can increase the risk of a fire.
Remedy
Dealers will replace the fuel tubes, and install vibration isolators, free of charge. Owner notification letters were mailed January 28, 2022. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-915.
21V864000 Nov 5, 2021
STEERING
Defect Description
Daimler Trucks North America, LLC. (DTNA) is recalling certain 2021-2022 Western Star 49X vehicles. The steering shaft may not have been properly installed, causing it to separate from the steering gear.
Consequence
Steering shaft separation can result in a loss of steering control, increasing the risk of a crash.
Remedy
Owners are advised to not drive their vehicles until the inspection has been performed. Dealers will inspect the steering shaft and repair it, as necessary, free of charge. Owner notification letters were mailed January 12, 2022. Owners may contact DTNA customer service at 1-800-547-0712. DTNA'... Read more
21V481000 Jun 25, 2021
ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES
Defect Description
Daimler Trucks North America, LLC (DTNA) is recalling certain 2019-2022 Freightliner Cascadia P4, 2021 Western Star WH126, 2020 Western Star WJ121, and 2021-2022 Western Star 49X vehicles. The battery cable terminal may break, resulting in a loss of electrical power and unintended engine stall.
Consequence
An engine stall increases the risk of a crash.
Remedy
Dealers will repair or replace the battery cables, free of charge. Owner notification letters were mailed on January 7, 2022. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-893.
No complaints found for this vehicle.
Technical Service Bulletins, 2021 WESTERN STAR 49X
144 manufacturer communications from 105 unique bulletins. TSBs describe known problems and recommended fixes from the manufacturer.
Most Affected Components
| Component | Bulletins |
|---|---|
| 350000 EQUIPMENT | 30 |
| 110000 ELECTRICAL SYSTEM | 25 |
| 060000 ENGINE AND ENGINE COOLING | 22 |
| 100000 POWER TRAIN | 14 |
| 030000 SERVICE BRAKES, HYDRAULIC | 6 |
| 160000 STRUCTURE | 6 |
| 356000 EQUIPMENT ADAPTIVE/MOBILITY | 5 |
| 120000 EXTERIOR LIGHTING | 5 |
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
TSB30-001-WST
Feb 23, 2024
060000 ENGINE AND ENGINE COOLING
Technical Service Bulletin for Off-Road/Low Traction Throttle Parameter Update
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
ICI24-006
Feb 20, 2024
060000 ENGINE AND ENGINE COOLING
Important Campaign Information letter for FL974 - Revised Bulletin & Population
ICI24-007
Feb 14, 2024
180000 VEHICLE SPEED CONTROL
Important Campaign Information letter for SF669 Campaign Suspended
SS755-WST
Jan 31, 2024
180000 VEHICLE SPEED CONTROL
Service Solution for X Series Odometer Reading Incorrect With Split Shaft PTOs
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
SF672_V4
Nov 3, 2023
110000 ELECTRICAL SYSTEM
Revised Field Service Campaign for Common Telematics Platform Software Update
SF672_V4
Nov 3, 2023
350000 EQUIPMENT
Revised Field Service Campaign for Common Telematics Platform Software Update
SBW60-028
Oct 11, 2023
350000 EQUIPMENT
Service Bulletin for Relocating the Bluetooth Microphone
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.
SF656
Jun 5, 2023
020000 SUSPENSION
Field Service Campaign for Western Star 49X Airliner Rear Suspension
SF672
Jun 2, 2023
110000 ELECTRICAL SYSTEM
Field Service Campaign for Common Telematics Platform Software Update
SF672
Jun 2, 2023
350000 EQUIPMENT
Field Service Campaign for Common Telematics Platform Software Update
SF642
May 10, 2023
060000 ENGINE AND ENGINE COOLING
Field Service Cmpaign for Western Star 49X Radiator RockGuard & Fan Shroud.
SBW54-087
Mar 30, 2023
100000 POWER TRAIN
Western Star Service Bulletin for Resetting the Maintenance System for DT12 Oil Changes
SF654
Dec 22, 2022
260000 FORWARD COLLISION AVOIDANCE
Field Service Campaign for Western Star Front Radar Mounting Bracket
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
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
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
SF659
Oct 20, 2022
100000 POWER TRAIN
Field Service Campaign for Western Star 47X and 49X Maintenance System Update. On certain vehicles, the maximum driving distance parameter that prompts notification to change the transmission oil is set incorrectly. The parameter is set to
SBW54-088
Sep 28, 2022
120000 EXTERIOR LIGHTING
Western Star Service Bulletin for Non-Functioning Heated Headlamps. This service bulletin describes how to resolve non-functioning headlamps on 47X and 49X vehicles. Symptoms of this issue may only appear while operating in cold weather con
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
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
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
SF657
Sep 20, 2022
110000 ELECTRICAL SYSTEM
Revised Freightliner and Western Star CTP Software Update REVISION: New tools are required. The USB stick with SF657 software already loaded, along with the USB stick to CTP adaptor harness that is On-the-Go (OTG) protocol compliant, now ha
SF657
Sep 20, 2022
350000 EQUIPMENT
Revised Freightliner and Western Star CTP Software Update REVISION: New tools are required. The USB stick with SF657 software already loaded, along with the USB stick to CTP adaptor harness that is On-the-Go (OTG) protocol compliant, now ha
SBW54-087
Sep 12, 2022
100000 POWER TRAIN
Western Star Service Bulletin for Resetting the Maintenance System for DT12 Oil Changes. This service bulletin describes required maintenance system parameter changes that apply to New Cascadia vehicles with Detroit DT12 transmissions used
SBW54-089
Aug 17, 2022
200000 WHEELS
Western Star Service Bulletin for Tire Pressure Monitoring System (TPMS) Water Intrusion
SBW54-086
Jul 29, 2022
100000 POWER TRAIN
Western Star Service Bulletin for Meritor Rear Axle Temperature Parameters
SS714-WST2022
Jul 28, 2022
130000 VISIBILITY
Service Solution for Primary Mirror Shaking and Vibration
SF646
Jul 18, 2022
160000 STRUCTURE
Field Service Campaign for Western Star 47X and 49X Front Closing Crossmember
SF657
Jun 23, 2022
110000 ELECTRICAL SYSTEM
Field Service Campaign for Freightliner and Western Star CTP Software Update
SF657
Jun 23, 2022
350000 EQUIPMENT
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
SS726-WST2022
May 31, 2022
120000 EXTERIOR LIGHTING
Service Solution for 49X & 47X Non FunctioningHeated Headlamps. Heating function of heated headlamps not functioning possible allowing snow and moisture toaccumulate on lens.
SF652
May 8, 2022
270000 LANE DEPARTURE
Western Star Field Service Campaign for Western Star 49X VRDU Programming. On certain vehicles equipped with Side Guard Assist (SGA), the Video Radar Device Unit (VRDU) contains parameters that have proven to be too sensitive for vocational
SF653
May 8, 2022
270000 LANE DEPARTURE
Western Star Field Service Campaign for Western Star 49X SRR Overwrite Sensor Mounting Data Update. On certain vehicles, the Short Range Radar (SRR) sensor, located on the passenger side, contains incorrect mounting position parameters. Inc
SS725-WST2022
Apr 25, 2022
010000 STEERING
Service Solution for Power Steering Cap Contact withHood Strap. Under certain conditions the drivers side hood restraint strap, which is attached to the radiatorand hood, may become lodged behind the power steering cap. When opening the hoo
ICI22-017
Apr 13, 2022
100000 POWER TRAIN
Important Campaign Information Letter for DDC D21M1 Termination Date Extended. This letter is to inform you that a revised bulletin for Detroit Diesel Field Service Campaign D21M1, DT12 Transmission Drive Shaft Cover Plug Reseal has been EX
ICI22-018
Apr 13, 2022
060000 ENGINE AND ENGINE COOLING
Important Campaign Information Letter for DDC D21M7 Termination Date Extended. This letter is to inform you that a revised bulletin for Detroit Diesel Field Service Campaign D21M7, GHG21 Detroit DD16 CPC Software Reprogramming has been EXTE
SF648
Mar 18, 2022
020000 SUSPENSION
Field Service Campaign for Western Star 47X and 49X SBA Front Suspension Shackle Bolts. On certain vehicles, the front suspension shackle bar may have a deformed spring pin hole due to lack of clamp load at the spring pin joint, causing a d
SF634
Mar 11, 2022
160000 STRUCTURE
Field Service Campaign for Western Star 49X Front Crossmember. A loss of clamp load, in the aft connection of the engine crossmember and frame rail, could result in a frame rail crack.
SS723-WST2022
Feb 28, 2022
160000 STRUCTURE
Service Solution for 49X Hood Handle Mounting
ICI22-015
Feb 26, 2022
030000 SERVICE BRAKES, HYDRAULIC
Important Campaign Information letter for SF622 ??A?A? Addition of 8x4 Vehicles to Populationx
SF622REV
Feb 26, 2022
030000 SERVICE BRAKES, HYDRAULIC
Revised Field Service Campaign for Cascadia, 49X ABS MBSP+ Controller Software Update
ICI22-014
Feb 23, 2022
350000 EQUIPMENT
Important Campaign Information Letter for SF635 ??A?A? Work Instructions Revised.
SF635REV
Feb 23, 2022
350000 EQUIPMENT
Revised Western Star Field Service Campaign for Western Star 49X - XMC Software Update
CALWS54-004
Feb 22, 2022
180000 VEHICLE SPEED CONTROL
Customer Advisory Letter for Western Star 49X Adaptive Cruise Control
SBW54-082
Feb 15, 2022
110000 ELECTRICAL SYSTEM
Western Star Service Bulletin for Battery Load Disconnect Switch Installation. Cab load disconnect switches (CLDS), also known as positive load disconnect, installed on selected vehicles can reduce battery drain when the vehicle is not oper
SS715-WST2022
Jan 31, 2022
100000 POWER TRAIN
Transmission Cooler Line Plumbing Fitting. Transmission cooler line plumbing fitting connections at the radiator may have relative movement between rail and radiator allowing fittings to become loose and leak.
SS722-WST2022
Jan 20, 2022
030000 SERVICE BRAKES, HYDRAULIC
ABA off Switch Instructions. Incorrect programing parameters in the ICUC were not allowing the ABA to be turned off.
SS722-WST2022
Jan 20, 2022
110000 ELECTRICAL SYSTEM
ABA off Switch Instructions. Incorrect programing parameters in the ICUC were not allowing the ABA to be turned off.
SS720-WST2021
Nov 23, 2021
110000 ELECTRICAL SYSTEM
Service Solution for Mirror Mounted Antenna Ground. CB radio and or AM/FM radio difficult to hear incoming audible, cuts out.
SS720-WST2021
Nov 23, 2021
350000 EQUIPMENT
Service Solution for Mirror Mounted Antenna Ground. CB radio and or AM/FM radio difficult to hear incoming audible, cuts out.
SS3083-FTL2021
Nov 23, 2021
020000 SUSPENSION
Service Solution for Aero Height Control Interfering with RDF Alignment. The Aerodynamic Height Control feature on the New Cascadia is a feature that raises and lowers the air suspension with relation to vehicle speed in order to reduce dra
21TS-12REV
Nov 15, 2021
060000 ENGINE AND ENGINE COOLING
Revised Detroit Technical Service Letter for Gen 5 Detroit DD16 Poor Acceleration Complaints In Western Star 49X Chassis When Lightly Loaded. This letter has been removed as more current information is now available in the campaign letter D
D21M7
Nov 11, 2021
060000 ENGINE AND ENGINE COOLING
Detroit Field Service Campaign for GHG21 Detroit DD16A? CPC Software Reprogramming. All the vehicles in the population require programming the CPC. Some vehicles require programming the ACM, MCM, and TCM (if equipped with a Detroit DT12 tra
SF641
Nov 1, 2021
100000 POWER TRAIN
Field Service Campaign for Western Star 49X Transmission Cooler Plumbing. Due to normal vibrations combined with inadequate support, the quick-connect fittings on the transmission oil cooler lines may experience excessive wear, leading to a
SS704-WST2021
Oct 20, 2021
110000 ELECTRICAL SYSTEM
ECP (Electronic Controlled Pneumatics) Ground Noise/False Codes. Internal board of ECP supplied by manufacturer. Audible chirping noise through speakers, leaking air through ECP, continual error codes with no problem found.
SS719-WST2021
Oct 20, 2021
120000 EXTERIOR LIGHTING
Beacon Light Wiring Harness. Customer installed beacon lights intermittent operation, flicker, do not flash. XMC allows for up to 2amp lights to be used for beacon light installations, some beacon lights in the aftermarket installations are
ICI21-030
Oct 18, 2021
130000 VISIBILITY
SF626 Western Star Window Replacement Inspection Notification. This letter is to inform you that Field Service Campaign SF626 Western Star Window Replacement Inspection Notification campaign was released.
SF635
Oct 14, 2021
110000 ELECTRICAL SYSTEM
XMC Software Update. Due to a software issue with the Xtra Modular Controller (XMC), some body builder-installed electrical components may not work as intended (may be intermittent or non-functioning).
21TS-12REV
Oct 1, 2021
060000 ENGINE AND ENGINE COOLING
Revised Technical Service Letter for GHG21 Detroit DD16 Poor Acceleration Complaints In Western Star 49X Chassis When Lightly Loaded.
SS705-WST 2021
Sep 24, 2021
110000 ELECTRICAL SYSTEM
Service Solution for XMC Output Reliability. Reliability issue with the six 20 Amp outputs (DO1-DO6) on the XMCa??s. A software revision is now available to allow 20 Amp outputs work reliably on XMCa??s for 49X.
MYCOM_091321-3
Sep 13, 2021
350000 EQUIPMENT
My Communication for Detroit Connect Over the Air Issue Update. This is an update for the previously communicated Over the Air functionality issue on CTP1s. We are currently testing a solution for the issue that is affecting these CTP1 tele
CTP1Updates
Sep 13, 2021
350000 EQUIPMENT
DetroitConnect follow-up customer communication for certain vehicles unable to complete over the air updates including parameters and DDEC over the air.
SF636
Sep 8, 2021
100000 POWER TRAIN
Field Service Campaign for Western Star 49X Differential Lock - Parameter Update. Vehicles may automatically disengage the differential lock without warning when vehicle speed reaches 25 mph.
SS711-WST 2021
Aug 30, 2021
110000 ELECTRICAL SYSTEM
Service Solution for Aux E-vault Rattle in Day Cab. Rattle noise inside of cab coming from the e-vault location. Mounting bracket has low fore/aft stiffness
SS717WST-2021
Aug 27, 2021
160000 STRUCTURE
Service Solution for Door Drain Plug & Water Pooling.
ICI21-027
Aug 24, 2021
030000 SERVICE BRAKES, HYDRAULIC
Important Campaign Information Letter for SF622 ??A?A? Campaign Revision/Reactivation. This letter is to inform you that the work instructions for Field Service Campaign SF622, Cascadia/49X ABS MBSP+ Controller Software Update have been rev
SF622
Aug 24, 2021
030000 SERVICE BRAKES, HYDRAULIC
Revised Field Service Campaign for Cascadia/49X ABS MBSP+ Controller Software Update. REVISION: The work instructions have been revised. Certain vehicles have a WABCO Anti-Lock Braking System (ABS) controller that logs excessive 629-11 faul
21TS-12
Aug 20, 2021
060000 ENGINE AND ENGINE COOLING
Technical Service Letter for GHG21 Detroit DD16 Poor Acceleration Complaints In Western Star 49X Chassis When Lightly Loaded.
SS715WST-2021
Aug 19, 2021
060000 ENGINE AND ENGINE COOLING
Service Solution for Transmission Cooler Line Plumbing Fitting. Transmission cooler line plumbing fitting connections at the radiator may have relative movement between rail and radiator allowing fittings to become loose and leak.
SS716WST-2021
Aug 19, 2021
130000 VISIBILITY
Service Solution for Exterior Sun Visor Loose. Leg support of sun visor may debond from visor installation.
SS3085FTL-2021
Aug 19, 2021
350000 EQUIPMENT
Service Solution for Cummins PTO functionality error software level 81Z-006. Cascadia/Western Star 49X with Cummins engines combined with software level 81Z-006. A programming bug in the central gateway (CGW) for software level 81Z-006 will
WSTTOUGHTALK3
Jul 27, 2021
160000 STRUCTURE
Western Star Tough Talk episode 3 now available.
SBW54-079
Jul 19, 2021
110000 ELECTRICAL SYSTEM
Western Star Service Bulletin for Replacing 104-Way Terminal Wiring Using a Pigtail Kit. This bulletin contains information required to replace 104-way connector wires or terminals using the properly sized pigtail, as documented in the kit
SS2083FTL2021
Jul 16, 2021
020000 SUSPENSION
Service Solution for Aero Height Control Interfering with RDF Alignment and 42/523004/13 and 232/524042/9 Active for vehicles equipped with Hadley Smart Valve. The Aerodynamic Height Control feature on the New Cascadia is a feature that rai
SF622
Jun 22, 2021
030000 SERVICE BRAKES, HYDRAULIC
Field Service Campaign for Cascadia/49X ABS MBSP+ Controller Software Update. Certain vehicles have a WABCO Anti-Lock Braking System (ABS) controller that logs excessive 629-11 fault codes which subsequently lead to additional downstream fa
SS709WST2021
Jun 14, 2021
070000 FUEL SYSTEM, GASOLINE
Service Solution for fuel level sending unit loose.
SBW54-080
Jun 10, 2021
110000 ELECTRICAL SYSTEM
Western Star Service Bulletin for Key Fob ID Retention. Key fobs for remote keyless entry on Western Star vehicles are delivered in packages that include a unique ID for the fob. The ID is required when pairing the key fob with a vehicle.
SS702-WST2021
May 25, 2021
120000 EXTERIOR LIGHTING
Western Star Service Solution for hood fender marker lamp. Marker lamp design may allow water to collect internally.
SS702-WST2021
May 25, 2021
350000 EQUIPMENT
Western Star Service Solution for hood fender marker lamp. Marker lamp design may allow water to collect internally.
SS702-WST2021
May 25, 2021
356000 EQUIPMENT ADAPTIVE/MOBILITY
Western Star Service Solution for hood fender marker lamp. Marker lamp design may allow water to collect internally.
SS705-WST2021REV
May 24, 2021
110000 ELECTRICAL SYSTEM
Revised Western Star Service Solution for XMC Output Reliability regarding the six 20 Amp outputs (001-006) on the XMC's.
SS705-WST2021
May 14, 2021
110000 ELECTRICAL SYSTEM
Western Star Service Solution for XMC Output Reliability regarding the six 20 Amp outputs (001-006) on the XMC's.
SS705-WST2021
May 14, 2021
350000 EQUIPMENT
Western Star Service Solution for XMC Output Reliability regarding the six 20 Amp outputs (001-006) on the XMC's.
TechTalk566759
May 13, 2021
100000 POWER TRAIN
Tech Talk Discussion PTO Parameter DT12 Transmission 49X 2021 WU7373
TechTalk566759
May 13, 2021
980000 UNKNOWN OR OTHER
Tech Talk Discussion PTO Parameter DT12 Transmission 49X 2021 WU7373
SS703-WST2021
May 7, 2021
160000 STRUCTURE
Western Star Service Solution for Wheel Cut and Fender Interference. 49X vehicles built with certain 425 size front steer tires interfere with inner fender.
SS703-WST2021
May 7, 2021
200000 WHEELS
Western Star Service Solution for Wheel Cut and Fender Interference. 49X vehicles built with certain 425 size front steer tires interfere with inner fender.
TechTalk566471K
Apr 26, 2021
110000 ELECTRICAL SYSTEM
Tech Talk discussion on enable to send my chec feature in my 49x truck.
SS700-WST2021
Apr 23, 2021
060000 ENGINE AND ENGINE COOLING
Service Solution for 49X Vertical Exhaust Loose.
WI21-009
Apr 19, 2021
060000 ENGINE AND ENGINE COOLING
Warranty Information letter announcing that DTNA is increasing the Standard Diagnostic Times (SDTs) shown. The updated after treatment system (ATS) diesel exhaust fluid (DEF) pump times will be applied to repair orders opened on or after Ap
D21M1
Apr 19, 2021
100000 POWER TRAIN
Detroit Field Service Campaign for DT12 Transmission Drive Shaft Cover Plug Reseal. Daimler Trucks North America LLC, on behalf of its DETROIT Powertrain Division, is initiating Field Service Campaign D21M1 on certain DT12 transmissions in
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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