Chevrolet MY21 SILVERADO HD (2021)
What the hazard is
Sudden unintended braking and/or a rear wheel lockup whilst driving could increase the risk of an accident, causing injury or death to vehicle occupants and other road users.
What to do
Owners of affected vehicles will be contacted by General Motors Australia and New Zealand Pty Ltd in writing requesting they contact their local dealer to have the Transmission Control Module software updated and in some cases valve body will also need to be changed, free of charge.
Defect
Under certain conditions, some customers may experience harsh transmission shifting leading to momentary rear wheel lock up or Anti-lock Braking System (ABS) activation may occur.