Tag Archives: NHTSA 24V-797

General Motors (NYSE: GM) is recalling ~462,000 pickup trucks and large SUVs with diesel engines because the rear wheels can lock, increasing the risk of a crash, according to a required recall report made public by the National Highway Traffic Safety Administration. The huge U.S. safety defect recall covers 2020-2022 model year Chevrolet Silverado and GMC Sierra 1500, 2500 and 3500 pickups, as well as the 2021 Cadillac Escalade, GMC Yukon, Chevrolet Tahoe and Suburban.

“A transmission control valve in some of these vehicles may be susceptible to excess wear over time, resulting in a gradual loss of pressure within the valve that can cause harsh shifting. In rare cases, the rear wheels may experience a momentary lock up,” GM said in the mandatory filing. “Excessive wear within the transmission control valve body can cause a fluid leak leading to a pressure drop that causes certain valves to move unexpectedly,” GM said. Continue reading →