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NHTSA Recall 21V659000: Hose, piping, and connections (steering)

Daimler Trucks North America, LLC reported this safety recall to NHTSA on , covering an estimated 1,934 vehicles. It affects 2016–2021 Thomas Built Buses Saf-T-Liner Hdx.

1,934
vehicles potentially affected
1
model affected
2021
owners notified (October 15)
NHTSA campaign21V659000
Manufacturer campaignFL898
ComponentSTEERING › HYDRAULIC POWER ASSIST › HOSE, PIPING, AND CONNECTIONS
Report receivedAugust 25, 2021
Owner notificationOctober 15, 2021
Initiated byManufacturer

Defect

Daimler Trucks North America, LLC (DTNA) is recalling certain 2016-2021 Thomas Built Buses Saf-T-Liner HDX school buses equipped with an ISL or L9 engine. The power steering hose may be routed with inadequate clearance between the hose and the power cables.

Safety risk

A worn power steering hose increases the risk of a fire.

Remedy

DTNA will inspect the power steering hose routing and modify it as necessary, free of charge. Owner notification letters are expected to be mailed on October 17, 2021. Owners may contact DTNA's customer service at 1-800-547-0712. DTNA's number for this recall is FL898.

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.

Vehicles covered by recall 21V659000

Make and modelModel years
Thomas Built Buses Saf-T-Liner Hdx2016, 2017, 2018, 2019, 2020, 2021

Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.