2020 Western Star 5700
Safety record from NHTSA: recalls, owner complaints, investigations and service bulletins.
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Vehicles › Western Star › 5700 › 2020
These records cover every 2020 Western Star 5700. To see whether one car still needs a recall repair, decode its VIN or check it with NHTSA.
Recalls
6 recalls name the 2020 Western Star 5700. Newest first.
Daimler Trucks North America, LLC (DTNA) is recalling certain 2020 Freightliner Cascadia, 2020-2022 Western Star 4700 and 5700, 2022 Western Star 4900, and 2020-2023 Freightliner New Cascadia vehicles. The Gross Axle Weight Rating (GAWR) listed on the Federal Certification Label is incorrect, which can allow the vehicle to be overloaded. As such, these…
Risk and remedy
Risk
An overloaded vehicle can increase the risk of a crash.
Remedy
Dealers will be replace the GAWR labels, free of charge. Owner notification letters were mailed July 14, 2022. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-933.
Daimler Trucks North America, LLC (DTNA) is recalling certain 2019-2021 Western Star 4700 and Western Star 5700 vehicles. The ground harness wiring may be undersized and may cause a connector to melt.
Risk and remedy
Risk
Damage to the ground harness may cause an engine stall, increasing the risk of a crash.
Remedy
DTNA will notify owners, and dealers will replace the ground harness, free of charge. The recall is expected to begin May 22, 2021. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-880.
Daimler Trucks North America LLC (DTNA) is recalling certain 2019-2021 Western Star 4700 and 5700 vehicles. A particular wire in the ground harness may be undersized, possibly resulting in a melted connector in the ground circuit harness. If the connector becomes damaged, under certain circumstances, the engine may stall without the ability to restart.
Risk and remedy
Risk
An engine stall may increase the risk of a crash.
Remedy
DTNA will notify owners, and dealers will replace the ground harness, free of charge. This recall began June 23, 2020. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-852.
Daimler Trucks North America LLC (DTNA) is recalling certain 2019-2020 Freightliner 108SD, 114SD, Cascadia, Business Class M2, Western Star 4700 and 5700, Freightliner Custom Chassis S2, Custom Chassis XB, and Custom Chassis XC vehicles equipped with air disc brakes. The brake caliper mounting bolts may have been insufficiently tightened.
Risk and remedy
Risk
Loose brake caliper mounting bolts can reduce brake effectiveness, increasing the risk of a crash.
Remedy
DTNA will notify owners, and dealers will inspect and repair the vehicles, free of charge. The recall began May 1, 2020. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-845.
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.
Risk and remedy
Risk
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.
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.
Risk and remedy
Risk
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 1-800-547-0712. DTNA's number for this recall is FL834.
Owner complaints
1 complaints
Latest complaints
- Forward 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…
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.
Defect investigations
NHTSA’s Office of Defects Investigation opened these reviews into vehicles including this one.
- Automatic Emergency Braking Errors
On May 26, 2023, the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE23010) to assess reports of false positive activation of the Automatic Emergency Braking (AEB) system in model year (MY) 2017-2022 Daimler Trucks North America (DTNA) vehicles. The reports alleged that activation of the AEB…
On May 26, 2023, the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE23010) to assess reports of false positive activation of the Automatic Emergency Braking (AEB) system in model year (MY) 2017-2022 Daimler Trucks North America (DTNA) vehicles. The reports alleged that activation of the AEB system occurred while driving with no apparent obstruction in the vehicle's forward path, resulting in sudden vehicle deceleration. DTNA indicated that it received of a total of 315 reports that may relate to the alleged defect in MY 2017-2022 DTNA vehicles. DTNA stated that the vast majority of false positive activation of the subject systems occur in very limited durations and result in a five mile per hour deceleration. ODI considered four AEB systems offered by DTNA: Detroit Assurance 2.0, Detroit Assurance 4.0, Detroit Assurance 5.0, and Wabco OnGuard. ODI’s analysis shows that of the Detroit Assurance versions, all are failing at similar rates. The OnGuard AEB systems equipped on the same model and model year vehicles have experienced a significantly lower claim rate. To date, ODI has received a total of 32 consumer complaints of inadvertent activation of AEB in MY 2017-2022 DTNA vehicles. In total, ODI reviewed 347 unique (i.e., non-duplicative Vehicle Identification Numbers) reports that may relate to the alleged defect, which include 24 reports involving a crash, 13 reports involving an alleged injury and one report with a fatality. PE23010 has been upgraded to an Engineering Analysis to further assess the scope, frequency, and potential safety related consequences of the inadvertent AEB activations in MY 2017-2022 DTNA vehicles. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.
- Automatic Emergency Braking Errors
On May 26, 2023, the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE23010) to assess reports of false positive activation of the Automatic Emergency Braking (AEB) system in model year (MY) 2017-2022 Daimler Trucks North America (DTNA) vehicles. The reports alleged that activation of the AEB…
On May 26, 2023, the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE23010) to assess reports of false positive activation of the Automatic Emergency Braking (AEB) system in model year (MY) 2017-2022 Daimler Trucks North America (DTNA) vehicles. The reports alleged that activation of the AEB system occurred while driving with no apparent obstruction in the vehicle's forward path, resulting in unexpected and sudden vehicle deceleration. ODI sent an information request letter to DTNA on June 15, 2023.In its September 1, 2023, response, DTNA indicated that it received of a total of 315 reports that may relate to the alleged defect in MY 2017-2022 DTNA vehicles. DTNA stated that the vast majority of false positive activation of the subject systems occur for very limited durations and result in a five mile per hour deceleration. ODI considered four AEB systems offered by DTNA: Detroit Assurance 2.0, Detroit Assurance 4.0, Detroit Assurance 5.0, and Wabco OnGuard. ODI’s analysis shows that of the Detroit Assurance versions, all fail at similar rates. The Wabco OnGuard AEB systems equipped on the same model and model year vehicles have experienced a significantly lower claim rate. To date, ODI has received a total of 32 consumer complaints of inadvertent activation of AEB in MY 2017-2022 DTNA vehicles. In total, ODI reviewed 347 unique (i.e., non-duplicative Vehicle Identification Number) reports that may relate to the alleged defect, which include 24 involving a crash, 13 reports involving an alleged injury and one report with a fatality. PE23010 has been upgraded to an Engineering Analysis (EA25006) to further assess the scope, frequency, and nature of the inadvertent AEB activations in MY 2017-2022 Freightliner Cascadia and Western Star 5700 vehicles.In particular, this EA will assess the safety consequences likely to arise in the scenarios during which the AEB inadvertently and unexpectedly activates, such as the speeds and conditions during which the activation occurs. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
Service bulletins
Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.
- 11011082CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check.
- 11011076Warranty Information letter for Detroit Line or Line Seal, High Pressure Fuel Injector Standard Repair Time Updates
- 11010186CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check.
- 11010143Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines
- 11008508Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines
- 11007517CX Advocate for ConMet Oil Pan Insert Additional Failures
- 11007487Important 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.
- 11005500CX Advocate for NOx conversion low faults. Update to CXA 6_24_NOx submission.
- 11005494CX Advocate for ConMet Oil Pan Insert Additional Failures
- 11003924CX Advocate communication for clutch bolts
- 11003889CX Advocate communication for NOx conversion low faults
- 11001976Customer letter regarding variable speed water pump.
- 11000978Technical Service Bulletin for New Final Drive Over Heat Diagnostic
- 10253879Service Solution for DEF Pump Wiring for Cummins CM2450 Engine Controller
- 10214907Updated Western Star Service Bulletin for HVAC Actuator Replacement
- 10210548Important 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 additional three months. Please use the extended termination date for all work under D21M1 from this point forward. REVISION: D21M1 termination date extended to July 1, 2022.
- 10208391Western Star Service Bulletin for DEF Connector Reinforcement Caps
- 10207520Revised 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
- 10207507Revised Western Star Service Bulletin for Drive Line Vibration. Minor note: added an update of document previously submitted. The related VMRS codes are added
- 10202728SF626 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.
- 10198595Western 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.
- 10198288Western Star Service Solution for Low Voltage Disconnect (LVD) Troubleshooting: Western Star 5700 and New 4700.
- 10195575Service Solution SS 1033094 KUS Float Tube Fuel Level Sensor Inform...
- 10194820Tech Talk Discussion No comms with CPC, MCM or ACM
- 10193767Removable Front Tow Hook Changes
- 10193763Tractor Reflective Devices
- 10193762Allison FuelSense 2.0
- 10192962Paint Peeling, Hood.
- 10191148Service 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.
- 10191143Detroit 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 the bypass plugs of the drive shaft cover located in front housing.
- 10190551Warranty 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.
- 10190549Warranty 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.
- 10190020DTNA 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 Motor Control Module (MCM) which in certain cases, led to a 25% engine de-rate situation. Further diagnosis revealed that the DT12 wiring harness was chafing and contacting the transmission TCU case. To reduce potential chafing areas, the proposed short-term containment was to route the wiring harness using additional tie straps. This communication applies to Freightliner and Western Star vehicles built with DT12 transmissions.
- 10189348Detroit Field Service Campaign for DT12 Gear Grind During Downshift Software Update.
- 10189335Updated 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. 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 existing floor mat as a guide for optimal results. The new mat should not interfere with safety-critical equipment, such as foot pedals.
- 10189332Western 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 tool for troubleshooting vehicle Powernet issues.
- 10189319Warranty 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.
- 10187900Warranty 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 posters.
- 10187836Technical 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 50PSI. The instrument panel oil pressure gauge does not operate the same as with previous engine models. Please be advised, this is normal operation and no further diagnostics are required. Do not down a unit for this complaint.
- 10187835Starting 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 version of software on each of their stations.
Every Western Star 5700 model year
Bars are owner complaints, dots mark years with recalls. Select a year to open its report.