AutoStatsIQ
Data through Oct 2026
Model year

2020 Western Star 5700

Heavy truck, diesel, 6x4, built in United States. Owner complaints on file from May 17, 2022 to May 17, 2022.

Recalls (6)Complaints (1)Investigations (2)Bulletins (159)
Recall campaigns covering this model year616k vehicles or units across those campaigns
Owner complaints1Below the median 2020 heavy truck
Severity index0.02020 heavy trucks average 5.7
First 24 months0Complaints in its first two years
Complaints over time

Complaints about the 2020 Western Star 5700 peaked in 2022, with 1 filed

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

00.250.50.751202212023202420252026
Source: NHTSA ODI complaints file. The lighter column runs through October.
Components

100% of complaints about the 2020 Western Star 5700 name driver assistance

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

Driver assistance
1
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

6 recall campaigns cover the 2020 Western Star 5700

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

Recall campaigns for the 2020 Western Star 5700
CampaignFiledSubjectComponentVehiclesRemedy
22V-338May 16, 2022Gross Axle Weight Rating (GAWR) listed on the Federal Certification Label is incorrect, which can allow the vehicle to be overloadedEquipment185Part replacement
21V-206Mar 24, 2021Ground harness wiring may be undersized and may cause a connector to meltElectrical system5,111Part replacement
20V-281May 18, 2020Particular wire in the ground harness may be undersized, possibly resulting in a melted connector in the ground circuit harnessElectrical system2,987Part replacement
20V-127Mar 3, 2020Brake caliper mounting bolts may have been insufficiently tightenedBrakes2,585Repair or modification
19V-792Nov 4, 2019Due to improper adhesive, the vent window may detach from the vehicleVisibility and wipers2,725Part replacement
19V-722Oct 10, 2019Adhesive bond may fail allowing the baggage or sleeper side door to separate from the hingesStructure2,547Repair or modification
Source: NHTSA ODI recalls file.
Look up a VIN at NHTSA
Owner complaints

What owners reported about the 2020 Western Star 5700

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.

1 complaint on file, page 1 of 1.

  1. Filed May 17, 2022Failure Sep 1, 20193,000 milesPiedmont, MOForward collision avoidance

    The contact owns a 2020 Western Star 5700. The contact stated that while driving approximately 75 MPH, the anti-collision system erroneously activated causing the commercial truck to abruptly stop while driving on the freeway. During the failure, there were no other vehicles or objects nearby to cause the system to be activated. The contact indicated that the failure had occurred on several occasions. The vehicle was taken to the local dealer who realigned the sensors however, the failure recurred. No further information was available. The manufacturer was notified of the failure. The failure mileage was 3,000.

    NHTSA complaint 11464954
Source: NHTSA ODI complaints file.
Investigations

2 NHTSA investigations on file

  • EA25006 Engineering analysis, Driver assistance
    Automatic Emergency Braking Errors
    Opened Oct 23, 2025, still open
  • PE23010 Preliminary evaluation, Driver assistance
    Automatic Emergency Braking Errors
    Opened May 26, 2023, closed Oct 23, 2025
Source: NHTSA ODI investigations file.
All investigations
Service bulletins

159 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
  • TSB26-008-WST Apr 30, 2025 · Service Bulletin/Repair Instructions
    Service Solution for DT12 Oil Plug Ports
  • CXA 3_25_NOx Mar 20, 2025 · Other
    CX Advocate for NOx conversion low faults
  • CXA 2_25_NOx Feb 20, 2025 · Other
    CX Advocate for NOx conversion low faults
  • TSB01-001-DDC Feb 5, 2025 · Service Bulletin/Repair Instructions
    Technical Service Bulletin for GHG17 and Newer DD Platform Heavy Duty Oil Pan Drain Plug Inserts
  • SS778-WST Jan 14, 2025 · Other
    Service Solution for Power Steering Reservoir Fill Cap Venting
  • CXA 1_16_NOx Jan 16, 2025 · Other
    CX Advocate for NOx conversion low faults
  • CXA 1_16_CARB Truck Chec Jan 16, 2025 · Other
    CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check.
  • CXA 11_21_CARB Truck Chec Nov 21, 2024 · Other
    CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check.
  • 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
  • CXA_10_17_CARB Truck Chec Oct 17, 2024 · Other
    CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check.
  • 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
  • ICI24-031 Aug 15, 2024 · Other
    Important Campaign Information letter for DDC D23M3 - Campaign Reactivated and Extended. Field Service Campaign D23M3 - GHG17 DETROITTM DD16® Vibration Damper Replacement has been extended for an additional 6 months.
  • CXA 7_24_NOx Jul 18, 2024 · Other
    CX Advocate for NOx conversion low faults. Update to CXA 6_24_NOx submission.
  • CXA 7_24_Conmet Oil Pan Jul 18, 2024 · Other
    CX Advocate for ConMet Oil Pan Insert Additional Failures
  • CXA 06_24_Clutch Bolts Jun 21, 2024 · Other
    CX Advocate communication for clutch bolts
  • CXA 06_24_NOx Jun 21, 2024 · Other
    CX Advocate communication for NOx conversion low faults
  • VSWP Customer Letter May 21, 2024 · Other
    Customer letter regarding variable speed water pump.
  • TSB35-023-WST May 29, 2024 · Service Bulletin/Repair Instructions
    Technical Service Bulletin for New Final Drive Over Heat Diagnostic
  • 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
  • ICI22-017 Apr 13, 2022 · Service Bulletin/Repair Instructions
    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 EXTENDED for an add…
  • SBW49-020 Feb 15, 2022 · Service Bulletin/Repair Instructions
    Western Star Service Bulletin for DEF Connector Reinforcement Caps
  • SBW54-074 Jan 6, 2022 · Service Bulletin/Repair Instructions
    Revised Western Star Service Bulletin for Pana-Pacific 540 Radio Controls Not Operating Normally. Minor note: added an update of document previously submitted. The related VMRS codes are added
  • SBW41-002 Jan 6, 2022 · Service Bulletin/Repair Instructions
    Revised Western Star Service Bulletin for Drive Line Vibration. Minor note: added an update of document previously submitted. The related VMRS codes are added
  • 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.
  • SS708-WST2021 Jun 11, 2021 · Service Bulletin/Repair Instructions
    Western Star Service Solution for Low Voltage Disconnect (LVD) Troubleshooting: Western Star 5700 and New 4700.
  • SS1033094 May 12, 2017 · Service Bulletin/Repair Instructions
    Service Solution SS 1033094 KUS Float Tube Fuel Level Sensor Inform...
  • TechTalk566681 May 5, 2021 · Service Bulletin/Repair Instructions
    Tech Talk Discussion No comms with CPC, MCM or ACM
  • WSTCAE176-2020 Aug 20, 2020 · Service Bulletin/Repair Instructions
    Removable Front Tow Hook Changes
  • WSTCAE172-2020 Jan 24, 2020 · Service Bulletin/Repair Instructions
    Tractor Reflective Devices
  • WSTCAE171-2019 Mar 5, 2019 · Service Bulletin/Repair Instructions
    Allison FuelSense 2.0
  • SBW98003 Dec 1, 2016 · Service Bulletin/Repair Instructions
    Paint Peeling, Hood.
  • SS701-WST2021 Apr 29, 2021 · Service Bulletin/Repair Instructions
    Service Solution for DT12 Harness Chaffing - PT Can Faults. Transmission will not shift into Gear while driving or will not start and trigger multiple PT CAN Fault Codes.
  • D21M1 Apr 19, 2021 · Service Bulletin/Repair Instructions
    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 order to reseal t…
  • 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.
  • DT12 Trans Chafe Mar 10, 2021 · Service Bulletin/Repair Instructions
    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 received by the Mo…
  • D21M3 Mar 16, 2021 · Service Bulletin/Repair Instructions
    Detroit Field Service Campaign for DT12 Gear Grind During Downshift Software Update.
  • 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…
  • 21TS-04 Feb 19, 2021 · Service Bulletin/Repair Instructions
    Technical Service Letter for Gen 5 DD15 Instrument Panel Oil Pressure Gauge Operation. Gen 5 DD15 equipped units have been brought in for service with a complaint of the instrument panel oil pressure gauge not moving during unit operation and/or stuck at 50…
  • 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 …
  • 20TS-07REV Feb 19, 2021 · Service Bulletin/Repair Instructions
    Revised Technical Service Letter for Cold Weather Faults on GHG17/21 DD13 with MCM Software Version 14. Due to colder weather, there may be an increase in the frequency of faults, noted below, on GHG17/21 DD13 trucks built after June 5th 2019. This is due t…
  • 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.
  • 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…
  • Techtalk7921 Dec 9, 2020 · Service Bulletin/Repair Instructions
    Tech Talk discussion on Fan Override Switch Install.
  • 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…
  • SBW42-014 Dec 17, 2020 · Service Bulletin/Repair Instructions
    Western Star Service Bulletin for Access to Front Brake Zerk Fittings. Certain vehicles with Detroit front axles and Meritor EX-L front air disc brakes do not have access to the front brake zerk fittings for lubrication.
  • 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…
Source: NHTSA manufacturer communications files.
About service bulletins