General Motors has released a customer satisfaction program for select units of the Chevy Express over an issue with a transmission control valve.
According to Customer Satisfaction Program N232428780, certain 2017 Express and 2021 Express examples may have a condition where the transmission Control Valve Body Ball Check Valves can prematurely wear, which can cause them to become stuck or pass through the Control Valve Body Space Plate. If this were to occur, the driver may not be able to shift from Park to Drive or Reverse once the affected vehicle begins operation.
To remedy this, certified GM technicians are instructed to inspect affected units and replace the transmission Control Valve Body Spacer Plate package. Notably, this should take techs a little less than three hours to complete this fix.
It’s worth noting that General Motors has suggested that owners take affected vehicles to Medium Duty dealers to perform the repair. However, if this isn’t possible, owners may take their Express units to servicing dealers with equipment that meets or exceeds the vehicle weight, which is also able to safely and properly lift the vehicle.
As a reminder, the current Chevy Express is offered with the choice of two powerplants, including the standard naturally aspirated 4.3L V6 LV1 gasoline engine, rated at 276 horsepower and 298 pound-feet of torque, and the optional naturally aspirated 6.6L V8 L8T gasoline engine, rated at 401 horsepower and 464 pound-feet of torque. The GM six-speed automatic transmission handles gear swaps for both engines. Notably, the 2.8L I4 LWN turbodiesel Duramax engine was dropped for the 2023 model year, as GM Authority previously covered.
Under the skin, the Express rides on the GMT 610 platform, while production takes place at the GM Wentzville plant in Missouri. In addition, the Express Cutaway is also produced by Navistar at a separate facility in Ohio.