NHTSA Recall 20V390000: Quick release valve (service brakes)
Daimler Trucks North America LLC reported this safety recall to NHTSA on , covering an estimated 164,326 vehicles. It affects 2017–2021 Freightliner Cascadia.
| NHTSA campaign | 20V390000 |
|---|---|
| Manufacturer campaign | FL-855 |
| Component | SERVICE BRAKES, AIR › SUPPLY › QUICK RELEASE VALVE |
| Report received | July 2, 2020 |
| Owner notification | August 28, 2020 |
| Initiated by | Manufacturer |
Defect
Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2021 Freightliner Cascadia tractor trailers. The single brake modulator valve may be affected by chemical corrosion which can slow down the release timing and cause the brakes to pull to the affected side during automatic braking events.
Safety risk
Brakes that pull to one side during automatic braking events may cause a sudden change in vehicle direction, increasing the risk of a crash.
Remedy
DTNA will notify owners, and dealers will replace the front left and right single brake modulator valves will be replaced and spacers added, free of charge. The recall began August 28, 2020. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-855.
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.
Vehicles covered by recall 20V390000
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.