Canada2020–2023 Freightliner CASCADIA and 49X trucks are affected. DTNA says recall repairs completed during prior recalls may not be effective and a software problem may not detect corrosion of the brake modulator valves, which can let the brakes on one wheel fully apply during automatic braking, causing a brake pull that can change the vehicle’s direction and increase crash risk. Daimler Truck North America will notify owners by mail and advise taking the truck to a DTNA authorized service facility to inspect and, if necessary, replace the brake modulator valves and update the vehicle software.
How to identify it
2020–2023 Freightliner CASCADIA
2020–2023 Freightliner 49X
The hazard
On a small number of trucks, the recall repairs completed by an DTNA service facility during recalls FL958 and FL966 (Transport Canada recall nos. 2022-626 and 2023-051) may not be effective. As a result, another repair is required.
On certain trucks, a software problem may not detect corrosion to the brake modulator valves. As a result, the brakes on one wheel could fully apply during automatic braking. If this happens, there could be a brake pull that can cause the truck to change direction.
Note: This problem doesn't affect the service brakes.
A brake pull that causes the vehicle to change direction suddenly can increase the risk of crash.
What to do
Daimler Truck North America (DTNA) will notify owners by mail and advise you to take your truck to a DTNA authorized service facility to inspect, and if necessary, replace the brake modulator valves. The service facility will also update the vehicle software.
The official notice
This page is a summary of the notice published by Transport Canada, collected from Health Canada, CFIA and Transport Canada. Check the original before you act on it.
Read the official notice (opens in a new tab)