Faulty transmission control valve can fail and cause rear wheels to lock up, increasing risk of crash, according to General Motors.

The huge recall involves a transmission problem that can cause the back wheels to lock up, increasing the risk of a crash.

General Motors Co. has recalled nearly 462,000 pickups and SUVs equipped with Duramax turbo-diesel engines for transmission control valves that are susceptible to excess wear over time, resulting in harsh shifting, or in rare cases can cause the rear wheels to lock up while driving, according to the National Highway Traffic Safety Administration.

General Motors is recalling nearly 462,000 pickup trucks and SUVs with diesel engines because the rear wheels can lock up, increasing the risk of a crash.

The recall affects 2020–2022 models, including Chevy and GMC's full-size trucks and SUVs, but a software update fixes the transmission-valve issue.

Chevy Silverado and Tahoe, GMC Sierra and Yukon and Cadillac Escalade are all at risk of their rear wheels locking up

General Motors is recalling nearly 462,000 pickup trucks and big SUVs with diesel engines because the rear wheels can lock up, increasing the risk of a crash. The recall in the U.S. covers certain Chevrolet Silverado and GMC Sierra 1500,