NHTSA campaign 17V124000
Hazard
Daimler Trucks North America LLC (DTNA) is recalling certain 2015-2018 Western Star 4900 trucks. The aluminum air tanks on these vehicles may have improper welds possibly resulting in a rapid loss of air pressure.
Consequence
A rapid loss of air pressure without warning may cause a sudden application of the park brakes, increasing the risk of a crash.
Remedy
DTNA will notify owners, and dealers will replace the aluminum air tanks with steel, triple compartment, air tanks, free of charge. The recall began on April 27, 2017. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-732.
The text above is quoted verbatim from the NHTSA record. Confirm the affected units and the remedy with the manufacturer or NHTSA. Recall data may be incomplete, delayed, or superseded.