AutoStatsIQ
Data through Oct 2026
Model year

2021 Western Star 6900

Body and fuel not decoded. Owner complaints on file from no date to no date.

Recalls (0)Complaints (0)Investigations (0)Bulletins (76)
Recall campaigns covering this model year0No recall campaign lists this model year
Owner complaints0Not enough peers on file
Severity indexNoneCrash, fire, injury or death per 100
First 24 months0Complaints in its first two years
Complaints over time

Complaints about the 2021 Western Star 6900 by year filed

Owner complaints about this model year, by the year they were filed with NHTSA.

No campaigns match these filters.Reset filters
Source: NHTSA ODI complaints file. The lighter column runs through October.
Components

Complaints by component

Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.

No campaigns match these filters.Reset filters
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

No recall campaign lists the 2021 Western Star 6900

Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.

Source: NHTSA ODI recalls file.
Look up a VIN at NHTSA
Owner complaints

What owners reported about the 2021 Western Star 6900

The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.

0 complaints on file.

    Source: NHTSA ODI complaints file.
    Investigations

    NHTSA has not opened an investigation on this model year

    Source: NHTSA ODI investigations file.
    All investigations
    Service bulletins

    76 manufacturer communications cover this model year

    Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall; the 60 most recent are listed.

    • PB-47-900-WST Jun 1, 2026 · Service Bulletin/Repair Instructions
      Parts Bulletin for Fluorosilicone Fuel Tank Cap Seals
    • TSB-32-020-WST Oct 17, 2025 · Service Bulletin/Repair Instructions
      Technical Service Bulletin for TufTrac M12 Bolts
    • CXA_10_25_Conmet Oil Pan Oct 16, 2025 · Other
      CX Advocate for ConMet Oil Pan Insert Additional Issues
    • PB33-005-WST Jun 19, 2025 · Service Bulletin/Repair Instructions
      Parts Bulletin for Tie Rod Assembly Part Breakdown
    • WI24-019 Nov 11, 2024 · Warranty Program/Extension
      Warranty Information letter for Detroit Line or Line Seal, High Pressure Fuel Injector Standard Repair Time Updates
    • SS1023366-Detroit Oct 1, 2024 · Other
      Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines
    • SS1023366-Detroit Sep 16, 2024 · Other
      Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines
    • CXA 8_24_Conmet Oil Pan Aug 15, 2024 · Other
      CX Advocate for ConMet Oil Pan Insert Additional Failures
    • CXA 8_24_AutoElevate Disa Aug 15, 2024 · Other
      CX Advocate for AutoElevate Disablement Gen5 Engines
    • CXA 8_24_AutoElevate and Aug 15, 2024 · Other
      CX Advocate for benefits of Autoelevate and hydrocarbon faults
    • CXA 7_24_Conmet Oil Pan Jul 18, 2024 · Other
      CX Advocate for ConMet Oil Pan Insert Additional Failures
    • CXA 7_24_AutoElevate Disa Jul 18, 2024 · Other
      CX Advocate for AutoElevate Disablement Gen5 Engines
    • CXA 06_24_Clutch Bolts Jun 21, 2024 · Other
      CX Advocate communication for clutch bolts
    • SS3144-FTL Apr 25, 2024 · Service Bulletin/Repair Instructions
      Service Solution for DEF Pump Wiring for Cummins CM2450 Engine Controller
    • SBW83-030 Jun 27, 2022 · Service Bulletin/Repair Instructions
      Updated Western Star Service Bulletin for HVAC Actuator Replacement
    • SBW49-020 Feb 15, 2022 · Service Bulletin/Repair Instructions
      Western Star Service Bulletin for DEF Connector Reinforcement Caps
    • ICI21-030 Oct 18, 2021 · Service Bulletin/Repair Instructions
      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.
    • SBW54-080 Jun 10, 2021 · Service Bulletin/Repair Instructions
      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.
    • SS1033094 May 12, 2017 · Service Bulletin/Repair Instructions
      Service Solution SS 1033094 KUS Float Tube Fuel Level Sensor Inform...
    • WSTCAE180-2020 Oct 13, 2020 · Service Bulletin/Repair Instructions
      Portland Truck Plant Paint Changes
    • WI21-009 Apr 19, 2021 · Service Bulletin/Repair Instructions
      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 April 12, 2021.
    • WI21-008 Apr 6, 2021 · Service Bulletin/Repair Instructions
      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.
    • WP60-100 Mar 10, 2021 · Service Bulletin/Repair Instructions
      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 revised. Univers…
    • SBW54-057 Oct 27, 2020 · Service Bulletin/Repair Instructions
      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 Daimler-approved t…
    • WP21-007 Mar 22, 2021 · Service Bulletin/Repair Instructions
      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.
    • WI21-004 Feb 1, 2021 · Service Bulletin/Repair Instructions
      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 added multiple DT12…
    • 21OEM-06 Feb 19, 2021 · Service Bulletin/Repair Instructions
      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 maintain the latest …
    • ICI21-003 Feb 15, 2021 · Service Bulletin/Repair Instructions
      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 DTNA truck dealers a…
    • WI21-006 Feb 15, 2021 · Service Bulletin/Repair Instructions
      Warranty Information Letter for Detroit NOx Sensor Circuit Fault Codes - Claim Guidelines.
    • WI21-005 Feb 15, 2021 · Service Bulletin/Repair Instructions
      Warranty Information Letter for Body Builder/Truck Equipment Manufacturer Demonstration Program.
    • WI20-014R Feb 8, 2021 · Service Bulletin/Repair Instructions
      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 clarity and optimi…
    • SBW35-018 Dec 17, 2020 · Service Bulletin/Repair Instructions
      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 11-14418-000). The new O…
    • WP20-018R Dec 8, 2020 · Service Bulletin/Repair Instructions
      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 added to OWL. Re…
    • WP20-018 Dec 7, 2020 · Service Bulletin/Repair Instructions
      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 Alliance/Mascot pa…
    • 18SP744 Nov 30, 2020 · Service Bulletin/Repair Instructions
      Special Publication letter for Two-Filter Fuel System KM59 GEN1 DD15 DD16 Severe Duty High Pressure Fuel Rail Feed Lines Service Kit.
    • TechTalk7774 Oct 8, 2020 · Service Bulletin/Repair Instructions
      Tech Talk discussion on SS 1034711 HADLEY MIRROR
    • 17TS-05REV2 Oct 20, 2020 · Service Bulletin/Repair Instructions
      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.
    • 20TS-06 Oct 12, 2020 · Service Bulletin/Repair Instructions
      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 completing an oil c…
    • SBW54-076 Oct 7, 2020 · Service Bulletin/Repair Instructions
      Western Star Service Bulletin for Connecting the Chassis Harness Connector to the Cab Front Wall 104-Way Pass-Through Connector. This bulletin describes how the chassis harness connector functions and how to verify the four locks of the terminal stabilizer …
    • 18SP736 Sep 30, 2020 · Service Bulletin/Repair Instructions
      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 tensioner. The M10x80mm…
    • 20TS-03REV2 Sep 29, 2020 · Service Bulletin/Repair Instructions
      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 retrofit and servic…
    • TechTalk7679 Sep 15, 2020 · Service Bulletin/Repair Instructions
      Tech Talk discussion on repair verification for codes like 'low air flow' when a trailer is not available.
    • TechTalk4725 Sep 22, 2020 · Service Bulletin/Repair Instructions
      Tech Talk discussion about power steering fluid.
    • 20CSA-15 Aug 31, 2020 · Service Bulletin/Repair Instructions
      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 Diesel server.
    • ICI20-022R Aug 11, 2020 · Service Bulletin/Repair Instructions
      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 distributors. Thomas Built …
    • ICI20-022 Aug 3, 2020 · Service Bulletin/Repair Instructions
      Important Campaign Information letter announcing Dealer Travel for Campaign Performance. This letter is to announce a reimbursement available to dealers for travel to a customerÃÂâÃÂÃÂÃÂÙs location to perform a recall or field service campaign.
    • WI20-014 Aug 3, 2020 · Service Bulletin/Repair Instructions
      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 and optimize proce…
    • WI20-012 Aug 3, 2020 · Service Bulletin/Repair Instructions
      Warranty Information Letter informing that to ensure that DTNA policies and service network practices align, the Warranty Department will be revising the Warranty Manual.
    • 20TS-05 Jul 27, 2020 · Service Bulletin/Repair Instructions
      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 in pairs and or ca…
    • 20OEM-05 Jul 27, 2020 · Service Bulletin/Repair Instructions
      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.
    • 20CSA-10 Jul 27, 2020 · Service Bulletin/Repair Instructions
      Customer Service Announcement informing that Service Pack (SP) 1 for DiagnosticLinkÃÂÃÂÃÂî 8.12 Standard and Professional is available to download from the Detroit Diesel server.
    • TS1033768 Aug 13, 2018 · Service Bulletin/Repair Instructions
      Training Solution for Western Star Front Brake Squeal - Burnishing Procedure. The brake burnishing procedure can be used to help reduce brake related noise or imbalance concerns which may occur in the field.
    • 20CSA-09 Jul 23, 2020 · Service Bulletin/Repair Instructions
      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, incomplete progr…
    • SBW60-027 Jul 13, 2020 · Service Bulletin/Repair Instructions
      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 disinfecting proce…
    • TS1033014 Mar 9, 2017 · Service Bulletin/Repair Instructions
      Training Solutions for Fuel Leak Found at High Pressure Fuel Pump Weep Hole for Heavy Duty DD Engines. Occasionally we see trucks come in with fuel leaking from the high pressure fuel pump weep hole. This is NOT a defect in the pump and further diagnostics …
    • SBW31-016 Jul 28, 2020 · Service Bulletin/Repair Instructions
      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 suspension bogie cr…
    • 20CSA-08 Jun 10, 2020 · Service Bulletin/Repair Instructions
      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 DiagnosticLink 8.12 at…
    • 20TS-03REV Jun 25, 2020 · Service Bulletin/Repair Instructions
      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.
    • WI20-009 Jun 10, 2020 · Service Bulletin/Repair Instructions
      Warranty Information Letter for a Warranty Service Replacement Engine Program Clarification. Detroit established the Warranty Service Replacement Engine Program to support an unrepairable catastrophic engine failure due to manufacturing defect. To improve u…
    • SS1034711 May 22, 2020 · Service Bulletin/Repair Instructions
      Service Solution for Hadley Upper Mirror Glass Vibration. The following suggestions are not guaranteed to eliminate or fix the Hadley mirror vibration concern. We have had mixed results in field-testing. In some cases, these solutions eliminate or reduce th…
    Source: NHTSA manufacturer communications files.
    About service bulletins