General Motors is recalling 426,593 Chevrolet Silverado 2500 and 3500 heavy duty trucks, Chevrolet Tahoe Police Pursuit Vehicles (PPVs), and GMC Sierra 2500 and 3500 heavy duty trucks because the brake pedal in these vehicles may loosen or become inoperative, the National Highway Traffic Safety Administration reported.

The recall also covers 46,837 vehicles in Canada. The problem is tied to a brake pedal pivot nut.

“If the brake pedal becomes loose or inoperative, the driver may be unable to stop the vehicle by using the brake pedal,” NHTSA said on its website. “Additionally, a loose pedal may also interfere with the accelerator pedal. Either condition may increase the risk of a crash.”

GM dealers will inspect the brake pedal pivot nut, and then add thread adhesive and tighten the nut if necessary, NHTSA said.

The Chevrolet Silverado trucks were manufactured from Oct. 1, 2013, to Feb. 1 of this year. The Chevrolet Tahoe PPVs were manufactured from March 1, 2014, to Feb. 1 of this year. The GMC Sierra trucks were manufactured from Oct. 29, 2013, to Feb. 1 of this year.

Vehicle owners can reach Chevrolet customer service at (800) 222-1020 or GMC customer service at (800) 462-8782. GM’s number for this recall is 20760.