Freightliner Cascadia, model years 2017 to 2021. Filed by Daimler Trucks North America LLC and reported to NHTSA on 2 July 2020. 164,326 vehicles potentially affected.
What the notice says 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.
Is your vehicle included? Check with your VIN at NHTSA, or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on.
Freightliner's own number for this recall: FL-855. That is the number on the owner letter and on the dealer paperwork. 20V390 is the number NHTSA gave the same campaign, and the number this page is filed under. They are one recall, written two ways.
What owners ask about this recall
- Which vehicles does recall 20V390 cover?
- Freightliner Cascadia, model years 2017-2021.
- What is wrong with them?
- Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2021 Freightliner Cascadia tractor trailers.
- What can happen if it is not put right?
- Brakes that pull to one side during automatic braking events may cause a sudden change in vehicle direction, increasing the risk of a crash.
- Is there a fix yet?
- Yes, and it is free. 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.
- What should I do now?
- Check your own vehicle by its VIN with NHTSA, which is the record to act on. Freightliner calls this recall FL-855, which is the number on the owner letter and the dealer paperwork.
Answered from the register this site holds. NHTSA is the record to act on.
What the authority says can happen if this is not fixed: “Brakes that pull to one side during automatic braking events may cause a sudden change in vehicle direction, increasing the risk of a crash.”
affected
in the notice
caught
| Campaign | 20V390 |
|---|---|
| Filed by | Daimler Trucks North America LLC |
| System at fault | Service Brakes, Air:Supply:Quick Release Valve |
| Reported to NHTSA | 2 July 2020 |
| Model years | 2017-2021 |
| Vehicles named | FREIGHTLINER CASCADIA |
What the notice says today
The 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.
The 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.
What it said before
This campaign is in the register but not yet in the dated wording archive, so we cannot yet say whether its text has moved. It enters the archive on the next pass.
This is one of 353 notices in the record whose component field names service brakes, air. Across that group the median wait before owners were written to was 43 days.
Last checked . No change has been recorded in the wording.
The models named here, across their whole recall history
How to cite this record
Quoting the wording on this page means quoting a version, so the date belongs in the citation:
CarsMultiverse, recall 20V390, wording as read on 16 September 2026. https://carsmultiverse.com/recall/20v390/
The cross-border matches used on this site are deposited as a citable dataset: doi:10.5281/zenodo.22087136. The recall wording itself is published by the national authority named above and is theirs, not ours.
The recall record and its wording are published by the US National Highway Traffic Safety Administration and are US Government public domain. The dated archive, the comparison and any before-and-after above are CarsMultiverse. How fresh every engine behind this page is, is public on the status page. To check a specific vehicle, use NHTSA’s own VIN lookup.
The fingerprint of this notice
We take a SHA-256 of each of the three blocks of text the authority publishes and keep the first eight characters. As we last read campaign 20V390 on 23 August 2026, they were:
- Defect summary
6b5d997d - Consequence
23e01979 - Remedy
3a010cc6
We first read this notice on 21 August 2026. It has not moved since. If it ever does, these characters will not match, and the change will be dated here.
The wording we hold for 20V390 · how the whole register is watched
This notice names one vehicle among several registers that have written about it. Every notice this site holds for the Freightliner Cascadia, in all seven, is kept on that vehicle's own page, with the newest in each.
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