The National Highway Traffic Safety Administration (NHTSA) has published a recall order for 2,386 vehicles manufactured by Daimler Trucks North America. The trucks are all from the current model year, built between October 6 and February 16 by Daimler divisions Freightliner Trucks and Western Star Trucks.
The problem that prompted the recall is with the assembly of the service brakes, which are made by Swedish company Haldex. According to the NHTSA document, the diaphragm in some trucks may have been incorrectly seated in the brake chamber. At highway speeds, the defect can cause excessive brake drag and potentially lead to the driver losing control of the vehicle, although no such incident has been recorded.
The affected models are the Freightliner 108SD, 114SD and 122SD heavy-duty trucks, the Business Class M2 medium-duty and the Cascadia and Coronado semi-trailers, as well as the Western Star 4700, designed for construction, towing and other municipal services, and 4900 tractor. The recall is expected to begin on May 25, when customers will be able to bring their vehicles in to have the brake chambers replaced free of charge.
For the Freightliner Cascadia, this is the second recall order in under a month. About one in five trucks from model years 2007–2011 were recently found to be at risk of water leaks that could cause chassis corrosion, electrical short circuits and light failure.
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