GM Warranty Extension - GMC Savana

General Motors has launched a customer satisfaction program for certain GMC Savana models due to a transmission control valve problem.

A issue where the transmission Control Valve Body Ball Check Valves can prematurely wear and become stuck or pass through the Control Valve Body Space Plate has been reported, according to Customer Satisfaction Program N232428780, in some examples of 2017 and 2021 Savana vehicles. Should this happen, once the impacted vehicle starts up, the driver might not be able to go from Park to Drive or Reverse.

In order to fix this, qualified GM technicians need to repair the transmission Control Valve Body Spacer Plate package and inspect the impacted components. Notably, this should take techs a little less than three hours to execute this fix.

It's important to note that General Motors has advised owners to bring their impacted cars to a Medium Duty dealer so that they can be fixed. If this isn't feasible, owners can bring their Savana units to a service dealer who has equipment that can safely and correctly lift the vehicle and meets or surpasses the vehicle weight.