Photo courtesy of Isuzu Trucks.

Photo courtesy of Isuzu Trucks.

Isuzu Technical Center of America is recalling 21,000 NPR HD, NPR XD, NQR and NRR trucks in the 2015 to 2017 model years to address a potential transmission problem, according to the National Highway Traffic Safety Administration.

During manufacturing, the stamping equipment may have created burrs on the frame crossmember to which the transmission is mounted. These burrs may cause the transmission-mounting studs to break.

If the studs break, the transmission may not be properly supported, preventing it from shifting correctly and increasing the risk of a crash,” NHTSA warned on its website.

Isuzu dealers will inspect the vehicles and install a metal shim to prevent stress on the mounting studs. There will be no charge for this service.

The recall is expected to begin in April. Truck owners can reach Isuzu customer service at (866) 441-9638.