2018 WESTERN STAR 4900

16 recalls, 0 complaints - 669 TSBs

TIRES

Defect Description

Daimler Trucks North America, LLC (DTNA) is recalling certain 2012-2021 Freightliner SD 108, Freightliner SD 114, 2016-2020 Freightliner Coronado, 2013 Western Star 6900, 2013-2022 Western Star 4700, Western Star 4900, and 2022 49X vehicles. The tires and rims are not approved and rated for these v... Read more

Consequence

Unapproved tires that are not rated for the vehicle can cause tire performance issues, increasing the risk of a crash.

Remedy

Dealer will inspect and replace, as necessary, tires and rims, free of charge. Interim owner notification letters were mailed January 14, 2022. Owner notification letters were mailed on April 22, 2022. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall FL-9... Read more

307 vehicles affected

Manufacturer: Daimler Trucks North America, LLC

ELECTRICAL SYSTEM:WIRING

Defect Description

Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2019 Western Star 4700, 4900, 5700, and 6900 trucks. The affected trucks have a power stud that passes through the bulkhead. In certain circumstances, the power stud may contact the bulkhead and result in an electrical arc.

Consequence

An electrical arc can increase the risk of a fire.

Remedy

Dealers will replace the pass-through power studs, free of charge. Owner notification letters were mailed January 7, 2022. This recall supersedes previous recall number 18V-191. Vehicles previously inspected and considered complete under 18V-191 will need to return for the new remedy. Owners may... Read more

6,100 vehicles affected

Manufacturer: Daimler Trucks North America, LLC

POWER TRAIN:CLUTCH ASSEMBLY

Defect Description

Daimler Trucks North America LLC (DTNA) is recalling certain 2018-2019 Freightliner Cascadia, Business Class M2, 108SD, 114SD and 122SD and Western Star 4700, 4900 and 5700 vehicles. An internal component within the clutch assembly may fail, which in certain circumstances could allow the vehicle to... Read more

Consequence

Unintended vehicle movement van increase the risk of a crash.

Remedy

DTNA will notify owners, and dealers will update the software and replace the clutches, free of charge. DTNA issued owners an interim notification on December 7, 2020. Owner notification letters were mailed on May 28, 2021. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's numbe... Read more

4,329 vehicles affected

Manufacturer: Daimler Trucks North America LLC

VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW

Defect Description

Daimler Trucks North America LLC (DTNA) is recalling certain 2016-2020 Western Star 4900 and 5700 vehicles equipped with sleeper cab vent windows. Due to improper adhesive, the vent window may detach from the vehicle.

Consequence

If the vent window detaches while the vehicle is in motion, it can become a road hazard, increasing the risk of a crash.

Remedy

DTNA will notify owners, and dealers will replace the vent windows, free of charge. DTNA issued owners an interim notification on December 27, 2019. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-836.

2,725 vehicles affected

Manufacturer: Daimler Trucks North America LLC

STRUCTURE:BODY:DOOR

Defect Description

Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2020 Western Star 4900 and 5700 vehicles. The adhesive bond may fail allowing the baggage or sleeper side door to separate from the hinges.

Consequence

A baggage or sleeper side door that separates from the vehicle while in motion can cause road debris, increasing the risk of an injury or crash.

Remedy

DTNA will notify owners and dealers will install reinforcement clips with mechanical fasteners on each baggage and sleeper door hinge, free of charge. DTNA issued owners an interim notification on December 6, 2019. The recall began September 21, 2020. Owners may contact DTNA customer service at ... Read more

2,547 vehicles affected

Manufacturer: Daimler Trucks North America LLC

POWER TRAIN:CLUTCH ASSEMBLY

Defect Description

Daimler Trucks North America LLC (DTNA) is recalling certain 2018-2019 Freightliner 108SD, 114SD, 122SD, Cascadia, Business Class M2, Western Star 4700, 4900, and 5700 vehicles, equipped with certain Eaton ECA heavy-duty truck clutches. An internal component in the clutch assembly may fail, possibl... Read more

Consequence

Unintended vehicle movement can increase the risk of a crash.

Remedy

DTNA will notify owners, and dealers will update the software, and repair any physical components, free of charge. DTNA issued owners an interim notification on February 16, 2019. The recall began July 31, 2019. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this ... Read more

6,795 vehicles affected

Manufacturer: Daimler Trucks North America LLC

STEERING

Defect Description

Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2019 Freightliner 114SD, 122SD, 108SD, Cascadia and Business class M2 trucks, Freightliner Custom Chassis XBS, XCL, XCM, MT45, MT55, S2G, S2RV, XCR and XCS custom chassis and Western Star 4700, 4900 and 5700 trucks equipped with Detro... Read more

Consequence

Loose tie rod arm bolts may lead to separation of the tie rod arm, resulting in a loss of vehicle control, increasing the risk of a crash.

Remedy

DTNA has notified owners, and dealers will inspect the steering arm and tie rod arm bolts for to make sure that they are properly tightened, installing new fasteners as necessary, free of charge. The recall began February 9, 2019. Owners may contact Daimler Trucks at 1-800-547-0712. DTNA's number ... Read more

501 vehicles affected

Manufacturer: Daimler Trucks North America LLC

SERVICE BRAKES, AIR:DISC:CALIPER

Defect Description

Daimler Trucks North America, LLC (DTNA) is recalling certain 2018-2019 Freightliner 108SD, 114SD, Cascadia, Business Class M2, Freightliner Custom Chassis Corporation S2C 106 Cab, S2G Cab Chassis, XCL, XCM, XBS, XCP, XCR, Western Star 4700, 4900 and 5700 trucks. The brake caliper mounting bolts ma... Read more

Consequence

Loose brake caliper mounting bolts can reduce brake effectiveness, increasing the risk of a crash.

Remedy

DTNA will notify owners, and dealers will check and tighten the brake caliper mounting bolts, free of charge. The recall began December 3, 2018. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-794.

5,534 vehicles affected

Manufacturer: Daimler Trucks North America LLC

ENGINE AND ENGINE COOLING:ENGINE:DIESEL

Defect Description

Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2019 Freightliner Cascadia, Coronado and 122SD, and Western Star 4900 trucks, equipped with Cummins ISX15 or X15 diesel engines. In certain driving conditions, such as on a long down-hill grade, the fuel line may burst if the fuel pu... Read more

Consequence

If the fuel line bursts, fuel may leak onto the road resulting in a roadway hazard for other motorists. The engine may also stall without warning, resulting in the vehicle's inability to restart, increasing the risk of a crash.

Remedy

Dealers will replace the affected nylon fuel line with a steel fuel line, free of charge. The recall began November 21, 2018. Owners may contact DTNA customer service at 1-800-547-0712 or Cummins customer service at 1-800-286-6467. DTNA's number for this recall is FL789.

4,500 vehicles affected

Manufacturer: Daimler Trucks North America LLC

SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER

Defect Description

Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2019 Freightliner M2 Business Class, 108SD, 114SD and Cascadia trucks, Western Star 4700, 4900, and 5700 trucks, FCCC S2C 106 Cab, S2G Cab, XBR, XBS, XCL, XCM, XCP, XCR, and XCS chassis equipped with air disc brakes. The brake caliper... Read more

Consequence

If the brake caliper mounting bolts loosen, braking performance may be reduced, increasing the risk of a crash.

Remedy

DTNA will notify owners, and dealers will inspect the brake caliper mounting bolts and tighten them as necessary, free of charge. DTNA issued owners an interim notification on July 25, 2018. The recall began September 4, 2018. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's num... Read more

8,741 vehicles affected

Manufacturer: Daimler Trucks North America LLC

SERVICE BRAKES, AIR

Defect Description

Daimler Trucks North America LLC (DTNA) is recalling certain 2012-2019 Western Star 4900 trucks built with Lowmax hoods and disc brakes. There may be insufficient clearance between the front brake hose and the hood resulting in the brake hose being chafed.

Consequence

Front brake hose chafing may causing air loss, possibly reducing braking effectiveness and increasing the risk of a crash.

Remedy

DTNA will notify owners, and dealers will replace the front axle brake hose, free of charge. DTNA issued owners an interim notification on July 27, 2018. The recall began November 27, 2018. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-773.

640 vehicles affected

Manufacturer: Daimler Trucks North America LLC

ELECTRICAL SYSTEM:WIRING

Defect Description

Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2019 Western Star 4700, 4900, 5700, and 6900 trucks. The affected trucks have a power stud that passes through the bulkhead. In certain circumstances the power stud may contact the bulkhead and result in an electrical arc.

Consequence

An electrical arc can increase the risk of a fire.

Remedy

DTNA will notify owners, and dealers will inspect the power stud for the proper clearance to the bulkhead, and replace it if necessary, free of charge. DTNA issued an interim notification to owners on May 23, 2018. The recall began October 29, 2018. Owners may contact DTNA customer service at 1-8... Read more

7,128 vehicles affected

Manufacturer: Daimler Trucks North America LLC

EXTERIOR LIGHTING:BRAKE LIGHTS

Defect Description

Daimler Trucks North America, LLC (DTNA) is recalling certain 2008-2018 Freightliner Cascadia, Western Star 4700, 4900, 5700, and 6900 trucks. After hard brake applications, the brake light pressure switch may not activate the brake lights with a light application of the brake pedal.

Consequence

If the brake lights fail to illuminate, there would not be a signal to other motorists that the vehicle is slowing, increasing the risk of a crash.

Remedy

DTNA will notify owners, and dealers will repair the vehicles, free of charge. Daimler issued interim notifications to owners on January 22, 2018. The recall began on May 9, 2018. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-756.

438,255 vehicles affected

Manufacturer: Daimler Trucks North America LLC

SUSPENSION:FRONT:SPRINGS:LEAF SPRING ASSEMBLY

Defect Description

Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2018 Western Star 4900 trucks. The front axle weight capacity may exceed the spring capacity.

Consequence

Overloaded springs may result in the front axle separating from the vehicle, increasing the risk of a crash.

Remedy

DTNA will notify owners, and dealers will replace the front axle springs, free of charge. The recall began on October 16, 2017. Owners may contact DTNA customer service at 1-800-745-8000. DTNA's number for this recall is FL-745.

38 vehicles affected

Manufacturer: Daimler Trucks North America LLC

FUEL SYSTEM, DIESEL

Defect Description

Daimler Trucks North America (DTNA) is recalling certain 2017-2018 Freightliner 122SD trucks, Western Star 4900 and 6900 trucks, and Freightliner Custom Chassis XCM and XCP chassis equipped with Cummins ISX15 engines. The affected engines have a fuel pump whose drive gear may slip on its drive shaf... Read more

Consequence

Failure of the fuel pump will result in a sudden engine stall with no warning, and with no ability to restart, increasing the risk of a crash.

Remedy

Cummins will send notices to the owners of the affected vehicles and Cummins dealers will replace the fuel pumps, free of charge. The recall began on September 11, 2017. Owners may contact Cummins customer service at 1-800-286-6467 or DTNA customer service at 1-800-745-8000. DTNA's number for thi... Read more

74 vehicles affected

Manufacturer: Daimler Trucks North America LLC

SERVICE BRAKES, AIR

Defect Description

Daimler Trucks North America LLC (DTNA) is recalling certain 2015-2018 Western Star 4900 trucks. The aluminum air tanks on these vehicles may have improper welds possibly resulting in a rapid loss of air pressure.

Consequence

A rapid loss of air pressure without warning may cause a sudden application of the park brakes, increasing the risk of a crash.

Remedy

DTNA will notify owners, and dealers will replace the aluminum air tanks with steel, triple compartment, air tanks, free of charge. The recall began on April 27, 2017. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-732.

450 vehicles affected

Manufacturer: Daimler Trucks North America LLC

No complaints found for this vehicle.

Technical Service Bulletins, 2018 WESTERN STAR 4900

669 manufacturer communications from 433 unique bulletins. TSBs describe known problems and recommended fixes from the manufacturer.

Most Affected Components

Component	Bulletins
350000 EQUIPMENT	108
060000 ENGINE AND ENGINE COOLING	71
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL	61
110000 ELECTRICAL SYSTEM	52
060000 ENGINE (PWS)	44
100000 POWER TRAIN	33
356000 EQUIPMENT ADAPTIVE/MOBILITY	24
063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM	23

060000 ENGINE AND ENGINE COOLING

Important Campaign Information letter for FL974 - Revised Bulletin & Population

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

060000 ENGINE AND ENGINE COOLING

Emissions Recall: Cummins DEF Sensor Shortage

130000 VISIBILITY

Updated Western Star Service Bulletin for HVAC Actuator Replacement

130000 VISIBILITY

Western Star Service Bulletin for HVAC Actuator Replacement. The wiring harness of the actuator of the fresh air recirculation door on Western Star vehicles equipped with Red Dot HVAC systems should be inspected for signs of water intrusion

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

060000 ENGINE AND ENGINE COOLING

Western Star Service Bulletin for DEF Connector Reinforcement Caps

100000 POWER TRAIN

Revised Western Star Service Bulletin for Drive Line Vibration. Minor note: added an update of document previously submitted. The related VMRS codes are added

130000 VISIBILITY

HVAC Actuator Wiring Harness. Revision History: Service kit part number changed from RDH RD5 17147 0 to WWS RD-3-9069-0 on 12/9/21. The wiring harness of the actuator of the fresh air recirculation door, shown in Fig. 1, on Western Star veh

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.

130000 VISIBILITY

Customer Advisory Letter for HVAC Actuator Wiring Harness. The wiring harness of the actuator of the fresh air recirculation door, shown in Fig. 1, on Western Star vehicles equipped with Red Dot HVAC systems should be inspected for signs of

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.

040000 SERVICE BRAKES, AIR

Tech Talk Discussion 121-8861-005 3 Compartment air tank with one way internal check valve

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

060000 ENGINE AND ENGINE COOLING

Detroit Technical Service Letter for DD13 Cylinder Head and Cylinder Head Gasket Change.

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

350000 EQUIPMENT

Warranty Information Letter announcing DTNA is adjusting the Standard Repair Times (SRTs) shown. The updated times will be applied to repair orders opened on or after April 5, 2021.

110000 ELECTRICAL SYSTEM

Tech Talk continuing discussion on a burned cab.

350000 EQUIPMENT

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-re

110000 ELECTRICAL SYSTEM

356000 EQUIPMENT ADAPTIVE/MOBILITY

DTNA received a field notification on multiple units regarding diagnostic fault codes that were found to be causing issues to the After Treatment Control Module (ACM). These fault codes indicated that the ACM communication message was not r

350000 EQUIPMENT

100000 POWER TRAIN

350000 EQUIPMENT

Updated Western Star Parts Technical Bulletin for Universal Design Floor Mats. This bulletin replaces the version dated February 12, 2021. Information about parts notes in the Paragon system have been added and the trimming instructions are

060000 ENGINE AND ENGINE COOLING

Starting on November 23, 2020, DiagnosticLink 8.13 (Build 4527) was made available. Current subscribers of DiagnosticLink 8.11 or 8.12 may upgrade to DiagnosticLink 8.13 at no cost. All DTNA Service shops & OEM locations are required to mai

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

Superseding Letter to an Important Campaign Information Letter to announce a reimbursement available to dealers for travel to a customer's location to perform a recall or field service campaign. Potential travel reimbursement applies to DTN

356000 EQUIPMENT ADAPTIVE/MOBILITY

Warranty Information Letter for Detroit NOx Sensor Circuit Fault Codes - Claim Guidelines.

350000 EQUIPMENT

Warranty Information Letter for Detroit NOx Sensor Circuit Fault Codes - Claim Guidelines.

110000 ELECTRICAL SYSTEM

Warranty Information Letter for Detroit NOx Sensor Circuit Fault Codes - Claim Guidelines.

060000 ENGINE AND ENGINE COOLING

Warranty Information Letter for Detroit NOx Sensor Circuit Fault Codes - Claim Guidelines.

350000 EQUIPMENT

Western Star Parts Technical Bulletin for Universal Design Floor Mats. Universal floor mat designs fit multiple cab configurations and may require trimming. Trim lines displaying size options are scored into the pad side of the mat; use an

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

Revised Warranty Information Letter for OWL and Warranty Manual Improvement: Sublets and Travel Time/Distance. In the spirit of continuous improvement, DTNA reviewed sublet-related policies and procedures. The goal was to improve language c

100000 POWER TRAIN

Warranty Information Letter for Detroit Resources: Exploded View DD Platform and DT12 Posters. Detroit's TechComm team created visual aids for the network and released exploded view posters for DD platform engines. In early 2021, Detroit ad

060000 ENGINE AND ENGINE COOLING

350000 EQUIPMENT

Technical Service Letter for Detroit Bearing Failures - Standard Diagnostic Times. DTNA is increasing repair strategies for determining the root cause of Detroit DD heavy duty lower end bearing failures. To support this strategy change, Det

060000 ENGINE AND ENGINE COOLING

350000 EQUIPMENT

Technical Service Letter for GHG17 1-Box Inlet and Outlet Exhaust Clamps. There is a short supply of exhaust clamps, part number DDE A6809950502, used as inlet and outlet exhaust clamps on GHG17 heavy duty engines (DD13, DD15 and DD16) with

060000 ENGINE AND ENGINE COOLING

100000 POWER TRAIN

Western Star Service Bulletin for Axle Flange Gasket Replaced with O-Ring. Daimler Trucks North America has released a new axle shaft to hub rubber O-ring (part number 11-30728-000) as a replacement for the paper gasket (part number 11-1441

100000 POWER TRAIN

Revised Warranty Policy Letter for Alliance/Mascot Aftermarket Warranty and Claim Filing. Revisions are in blue. With Mascot now in partnership with Detroit Reman and Alliance Parts, DTNA is pleased to announce that Mascot coverage has been

010000 STEERING

356000 EQUIPMENT ADAPTIVE/MOBILITY

Warranty Policy Letter for Alliance/Mascot Aftermarket Warranty and Claim Filing. With Mascot now in partnership with Detroit Reman and Alliance Parts, DTNA is pleased to announce that Mascot coverage has been added to OWL. Remanufactured A

350000 EQUIPMENT

100000 POWER TRAIN

010000 STEERING

060000 ENGINE AND ENGINE COOLING

Technical Service Letter for SPN 3711 FMI 31 on GHG17 DD15 Trucks.

356000 EQUIPMENT ADAPTIVE/MOBILITY

Special Publication letter for Two-Filter Fuel System KM59 GEN1 DD15 DD16 Severe Duty High Pressure Fuel Rail Feed Lines Service Kit.

073100 FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL

Special Publication letter for Two-Filter Fuel System KM59 GEN1 DD15 DD16 Severe Duty High Pressure Fuel Rail Feed Lines Service Kit.

060000 ENGINE AND ENGINE COOLING

Special Publication letter for Two-Filter Fuel System KM59 GEN1 DD15 DD16 Severe Duty High Pressure Fuel Rail Feed Lines Service Kit.

350000 EQUIPMENT

Western Star Service Bulletin for Powernet Troubleshooting Guide - Batteries, Path, Alternator, and Starter. When troubleshooting powernet issues, use the BCT-460DTNA PowerNet Assessment Tool. As of May 29, 2018, the AutoMeter is the only D

110000 ELECTRICAL SYSTEM

118000 ELECTRICAL SYSTEM:SOFTWARE

Revised Technical Service Letter for Detroit DT12 TCM GHG17 Only; Bootloader Update. On Detroit DT12 equipped vehicles, it may be necessary to complete an additional step in the programming process when updating the TCM software.

100000 POWER TRAIN

356000 EQUIPMENT ADAPTIVE/MOBILITY

Portland Truck Plant Paint Changes

350000 EQUIPMENT

Portland Truck Plant Paint Changes

356000 EQUIPMENT ADAPTIVE/MOBILITY

DDC Technical Service Letter for GHG17 DD Platform Heavy Duty Oil Pan Drain Plug Inserts. Some GHG17 DD Platform Heavy Duty oil pans may experience an issue with the oil pan drain plug insert spinning during removal or installation while co

060000 ENGINE AND ENGINE COOLING

062200 ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN

Detroit Diesel Special Publication informing about Heavy Duty Friction Style Belt Tensioner Kit. This heavy duty friction style belt tensioner kit contains the belt tensioner and two M10 bolts to correctly pin the friction style belt tensio

061110 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

060000 ENGINE AND ENGINE COOLING

Revised Technical Service Letter for DD Heavy Duty Platform Belt Tensioner Change. A newly designed, dual-arm friction shoe damping tensioner was implemented for the DD Heavy Duty Platform. The revision includes additional information on re

350000 EQUIPMENT

Tech Talk discussion about power steering fluid.

010000 STEERING

Tech Talk discussion about power steering fluid.

060000 ENGINE AND ENGINE COOLING

Tech Talk discussion on repair verification for codes like 'low air flow' when a trailer is not available.

350000 EQUIPMENT

Detroit Diesel Field Service Campaign for Engine Emission Label Replacement. Certain DETROIT heavy-duty engines installed in various applications will require reprogramming and engine emission label replacement.

060000 ENGINE AND ENGINE COOLING

Customer Service Announcement for Release of DiagnosticLink 8.12 Service Pack 2. On Thursday, September 3, 2020, Service Pack (SP) 2 for DiagnosticLink 8.12 Standard and Professional will be made available to download from the Detroit Diese

110000 ELECTRICAL SYSTEM

350000 EQUIPMENT

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

Revised letter is to announce a reimbursement available to dealers for travel to a customer's location to perform a recall or field service campaign. Potential travel reimbursement applies to DTNA truck dealers and Detroit Diesel distributo

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

Important Campaign Information letter announcing Dealer Travel for Campaign Performance. This letter is to announce a reimbursement available to dealers for travel to a customer??A???A???A???A???A???A???A???A???A???A???A???A?s location to p

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

Warranty Information Letter for OWL and Warranty Manual Improvement: Sublets and Travel Time/Distance. In the spirit of continuous improvement, DTNA reviewed sublet-related policies and procedures. The goal was to improve language clarity a

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

Warranty Information Letter informing that to ensure that DTNA policies and service network practices align, the Warranty Department will be revising the Warranty Manual.

356000 EQUIPMENT ADAPTIVE/MOBILITY

Western Star Bulletin for Non-Airliner Rear Suspension Crossmember Fastener Change. With the start of production on March 2, 2020, the fasteners used to assemble the non-Airliner rear suspension (bogie) crossmember have changed. The rear su

350000 EQUIPMENT

022000 SUSPENSION:REAR

060000 ENGINE AND ENGINE COOLING

Technical Service Letter for EPA10, GHG14, GHG17 Diesel Particulate Filter (DPF) Compatibility. Note: This document supersedes 14 TS-25 and 15 TS-8. Detroit Diesel has determined that some, Diesel Particulate Filters (DPFs) are compatible i

060000 ENGINE AND ENGINE COOLING

OEM and distributor announcement for DiagnosticLink 8.12 (Build 4527) was made available. All DTNA Service shops & OEM locations are required to maintain the latest version of software on each of their stations.

060000 ENGINE AND ENGINE COOLING

Customer Service Announcement informing that Service Pack (SP) 1 for DiagnosticLink??A???A???A???A???A???A???A???A? 8.12 Standard and Professional is available to download from the Detroit Diesel server.

060000 ENGINE AND ENGINE COOLING

Customer Service Announcement for DiagnosticLink Software Update Reminder. Due to various software changes and fixes, vehicles will require DiagnosticLink 8.12 to perform functional programming. Failure to use this version may cause errors,

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

Service Bulletin for Guidelines for Cleaning and Disinfecting Cab Surfaces. The following guidelines are for cleaning and disinfecting commonly touched surfaces on the inside and outside of a vehicle. For best results, follow cleaning and d

060000 ENGINE AND ENGINE COOLING

Revised Technical Service Letter for DD Heavy Duty Platform Belt Tensioner Change. A newly designed, dual-arm friction shoe damping tensioner was implemented for the DD Heavy Duty Platform.

060000 ENGINE AND ENGINE COOLING

Customer Service Announcement for Release of DiagnosticLink 8.12. On Wednesday, June 10, 2020, DiagnosticLink 8.12 will be made available for download from the ordering system. Current subscribers of DiagnosticLink 8.xx can upgrade to Diagn

356000 EQUIPMENT ADAPTIVE/MOBILITY

Technical Service Letter for DD Heavy Duty Platform Belt Tensioner Change. A newly designed, dual-arm friction shoe damping tensioner was implemented for the DD Heavy Duty Platform.

160000 STRUCTURE

Service Bulletin for Window Regulator Retrofit. The bulletin dated December 4, 2019 has been revised to include 4800 Models. Beginning 04/01/2019 Western Star cab doors were updated to a new style regulator and window. When replacing an old

133000 VISIBILITY:POWER WINDOW DEVICES AND CONTROLS

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

Warranty Information Letter for Warranty Training Online. DTNA is pleased to announce the release of new Warranty-related training videos. The videos provide Warranty content in short instructional videos that are available on demand throug

350000 EQUIPMENT

Warranty Policy Letter for Chassis Progressive Damage Policy Change. Effective for repair orders opened on or after April 27, 2020, if an Authorized Service Location installed a part which later has a warrantable failure, progressive damage

350000 EQUIPMENT

Warranty Policy Letter for Handling for Authorized Service Location Part Transfers. To promote 24-hour throughput and maximum efficiency, DTNA is adjusting multiple handling policies: Launching a new handling allowance for parts ordered fr

350000 EQUIPMENT

Warranty Policy Letter for Handling Change: Over the Counter Aftermarket Parts Replacement Program. DTNA is pleased to announce that handling will increase to 33% for Misc. Replacement Part type claims filed under the Over the Counter (OTC)

350000 EQUIPMENT

Warranty Information Letter for Warranty Long Block Program Change. The Detroit Reman Long Block Program has expanded. The expansion reduces complexity in ordering reman engines and promotes stocking reman engines to meet uptime commitments

060000 ENGINE AND ENGINE COOLING

280000 BACK OVER PREVENTION

Service Bulletin for Lengthening the Backup Light Harness. Though the back-up 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

110000 ELECTRICAL SYSTEM

062100 ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY

Service Solution for Lower Radiator Pipe Rubbing on X15 Cummins engine. Due to limited clearance, the lower radiator pipe may rub on the engine block and lower radiator hose may rub on the front engine support causing radiator coolant leaka

060000 ENGINE AND ENGINE COOLING

Customer Service Announcement saying that Service Pack (SP) 3 for DiagnosticLink??A? 8.11 Standard and Professional will be available for download from the Detroit Diesel server.

350000 EQUIPMENT

Customer Service Announcement saying that Service Pack (SP) 3 for DiagnosticLink??A? 8.11 Standard and Professional will be available for download from the Detroit Diesel server.

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

Warranty Policy Letter explaining the Warranty Department is aligning with the frame rail repair policy, published in DTNA Workshop Manuals, which states that there are very few cases in which welding a heat-treated frame rail is allowed. T

350000 EQUIPMENT

Open recall and Field service Campaigns report send out to Dealers, General Managers, Service managers and warranty managers.

160000 STRUCTURE

Showing 100 of 669 bulletins.

WESTERN STAR 4900 - All Years Overview

Complete safety history for the WESTERN STAR 4900 across all model years (1998, 2023).

236 Total Recalls

26 Total Complaints

0 Investigations

4 Reported Crashes

1 Reported Fires

2 Reported Deaths

WESTERN STAR 4900 - Year by Year

Compare recalls and complaints across model years. Click any year to see full details.

Year	Recalls	Complaints
2023	4	0	View
2022	7	0	View
2021	9	0	View
2020	7	2	View
2019	15	2	View
2018 (current)	16	0
2017	16	0	View
2016	10	0	View
2015	14	4	View
2014	11	6	View
2013	8	0	View
2012	8	1	View
2011	14	2	View
2010	14	0	View
2009	16	1	View
2008	17	0	View
2007	14	0	View
2006	10	1	View
2005	7	2	View
2004	5	0	View
2003	2	0	View
2002	2	1	View
2001	3	2	View
2000	3	0	View
1999	2	0	View
1998	2	2	View

Other WESTERN STAR Models

Model	Recalls	Complaints
49X	224	1	View
4700	194	10	View
47X	161	2	View
5700	119	7	View
6900	98	1	View
57X	68	0	View
CONVENTIONAL	63	4	View
WESTERN STAR	40	8	View

Vehicle Safety

Consumer Safety

Infrastructure

Public Health

2018 WESTERN STAR 4900

Technical Service Bulletins, 2018 WESTERN STAR 4900

Most Affected Components

WESTERN STAR 4900 - All Years Overview

WESTERN STAR 4900 - Year by Year

Other WESTERN STAR Models