Corroded modulator valve may cause brake pull
Defect Summary
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 Consequence
Brakes that pull to one side during automatic braking events may cause a sudden change in vehicle direction, increasing the risk of a crash.
Corrective Action
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.
Similar Recalls
Other recalls from Daimler Trucks North America, Llc or involving Service Brakes, Air.
FAQ: Recall 20V390000
Your rights, the repair process, and what each field on this page means.
What is recall 20V390000?
NHTSA recall 20V390000 was issued by Daimler Trucks North America, Llc on July 2, 2020. It addresses: Corroded modulator valve may cause brake pull. The recall affects approximately 164,326 vehicles, with the defect involving the Service Brakes, Air component.
How do I get this recall repaired?
Contact any authorized Daimler Trucks North America, Llc dealer and reference NHTSA recall ID 20V390000 or the manufacturer campaign number FL-855. Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.