NHTSA vehicle safety data

2020 Western Star 5700 Recalls & Complaints

The 2020 Western Star 5700 has 6 NHTSA recall campaigns and 1 owner complaint on file as of November 3, 2026. Recall repairs are usually free at an authorized Western Star dealer.

NHTSA recall and complaint data for the 2020 Western Star 5700. Recall data is refreshed daily from NHTSA.

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2020 Western Star 5700 owner complaints

Owners have filed 1 complaint with NHTSA about the 2020 Western Star 5700, describing incidents dated September 1, 2019.

Most-cited components

Forward Collision Avoidance 1 complaint

Newest complaints

ODI #11464954 · Filed May 17, 2022
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…

Read the full complaint

NHTSA defect investigations

NHTSA's investigations file lists the 2020 Western Star 5700 in 2 investigations. A listed model year means only that an investigation names it; it says nothing about any particular vehicle. An open investigation is not a finding that a safety defect exists, and NHTSA can close one without a recall.

Engineering Analysis EA25-006: Automatic Emergency Braking Errors
Open since October 23, 2025
Preliminary Evaluation PE23-010: Automatic Emergency Braking Errors
Closed October 23, 2025

Open and recently closed NHTSA defect investigations

Incorrect GAWR on Certification Label/Part 567

NHTSA #22V338000 · Equipment — Other — Labels · NHTSA notice

Reported May 16, 2022 · Daimler Trucks North America, LLC

Potentially affected: 185 vehicles

Repair completion: 68.65% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Manufacturer campaign FL-933 · Owners notified July 14, 2022

Defect description

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 vehicles fail to comply with the requirements of 49 CFR Part 567, "Certification."

Safety consequence

An overloaded vehicle can increase the risk of a crash.

Manufacturer 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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

Undersized Ground Wire May Cause Engine Stall

NHTSA #21V206000 · Electrical System — Wiring · NHTSA notice

Reported March 24, 2021 · Daimler Trucks North America, LLC

Potentially affected: 5,111 vehicles

Repair completion: 83.66% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Manufacturer campaign FL-880 · Owners notified July 16, 2021

Defect description

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.

Safety consequence

Damage to the ground harness may cause an engine stall, increasing the risk of a crash.

Manufacturer 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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Undersized Ground Wire May Cause Engine Stall

NHTSA #20V281000 · Electrical System — Wiring · NHTSA notice

Reported May 18, 2020 · Daimler Trucks North America LLC

Potentially affected: 2,987 vehicles

Repair completion: 94.01% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Manufacturer campaign FL-852 · Owners notified June 23, 2020

Defect description

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.

Safety consequence

An engine stall may increase the risk of a crash.

Manufacturer 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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Insufficiently Tightened Brake Caliper Bolts

NHTSA #20V127000 · Service Brakes, Air — Disc — Caliper · NHTSA notice

Reported March 3, 2020 · Daimler Trucks North America LLC

Potentially affected: 2,585 vehicles

Repair completion: 92.26% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Manufacturer campaign FL-845 · Owners notified May 1, 2020 · Vehicles built September 4, 2018 – March 29, 2019 (per NHTSA)

Defect description

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.

Safety consequence

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

Manufacturer 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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Vent Windows May Detach

NHTSA #19V792000 · Visibility — Defroster/Defogger/HVAC System — Rear Window · NHTSA notice

Reported November 4, 2019 · Daimler Trucks North America LLC

Potentially affected: 2,725 vehicles

Repair completion: 75.97% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Manufacturer campaign FL-836 · Owners notified September 21, 2020 · Vehicles built January 15, 2015 – October 29, 2019 (per NHTSA)

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.

Safety consequence

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

Manufacturer 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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Baggage/Sleeper Side Door May Separate from Hinge

NHTSA #19V722000 · Structure — Body — Door · NHTSA notice

Reported October 10, 2019 · Daimler Trucks North America LLC

Potentially affected: 2,547 vehicles

Repair completion: 79.1% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Manufacturer campaign FL834 · Owners notified September 21, 2020 · Vehicles built November 14, 2016 – September 10, 2019 (per NHTSA)

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.

Safety 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.

Manufacturer 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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

try.vin has no NCAP crash-test rating on file for the 2020 Western Star 5700. NHTSA rates some vehicles by body style — pickups by cab, vans by roof height — so check nhtsa.gov/ratings.

1 owner complaint has been filed with NHTSA for the 2020 Western Star 5700.

Forward Collision Avoidance

ODI #11464954

Incident: September 1, 2019 · Filed: May 17, 2022

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.

Other Western Star 5700 model years

Check your 2020 Western Star 5700 VIN

Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Western Star 5700 at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.

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