Incorrect software in the transmission control module may result in reduced power, unintended deceleration, rear-wheel lockup, or cause the vehicle to move in an unintended direction, the regulator said. GM on Wednesday recalled more than 461,000 vehicles over a separate issue related to its transmission.

A transmission issue in some diesel engine vehicles can cause harsh shifting and rear-wheels to lock, according to documents filed with regulators.

General Motors is recalling the vehicles due to a transmission defect that may cause rear wheels to lock up, increasing the risk of a crash.

General Motors will recall 461,839 vehicles over an issue with transmission, the National Highway Traffic Safety Administration said on Wednesday. The recall involves some models of 2020-2022 Chevrolet Silverado,