More than 200,000 trucks are being recalled by Daimler Trucks North America for an issue that could cause uneven braking during an adaptive cruise control braking event, according to National Highway Traffic Safety Administration documents.

The recall affects approximately 218,147 units of various models, including the model year 2017-2023 Freightliner Cascadia, 2020-2022 Freightliner Business Class M2, 2021 Freightliner 108SD, 2022 Freightliner 114SD, 2020-2023 Western Star 49X, 2021-2023 Western Star 47X and 2021-2022 Western Star 57X.

Daimler said “chemical corrosion could affect the functionality of the brake modulator valve, which during an ACC braking event may result in full system pressure applied to one wheel end.” In such an event, full brake system pressure on one wheel end could cause a sudden change in direction due to uneven braking on the front axle. Daimler noted that regular service brakes are unaffected. 

Affected vehicles will receive an anodized valve. Daimler said repairs will be released in phases based on the location of the vehicle, and repairs will be performed by DTNA-authorized service facilities. Daimler will also offer a refund for owner-paid repairs covered by this recall if the repair was performed prior to the date indicated in the reimbursement plan, which will be posted with owner notification letters.

Owner notification letters are expected to be mailed Dec. 30. Owners can contact DTNA customer service at 800-547-0712 with recall number FL-958. NHTSA’s recall number is 22V-817. NHTSA said this recall expands and replaces the previous recall from 2020, and all vehicles previously repaired under that recall will need to have the new remedy performed.