The Chevy Silverado MD lineup includes The General’s medium-duty truck offerings in the Class 4, Class 5, and Class 6 segments, including the 4500 HD, 5500 HD, and 6500 HD models. Critically, some Chevy Silverado MD customers were incorrectly charged for an Air Suspension Dump Valve. Now, however, GM is issuing a new Customer Satisfaction Program and reimbursement check for those customers that were incorrectly charged.
The reimbursement applies only to the 2022 model year for the Chevy Silverado MD lineup, including 4500 HD, 5500 HD, and 6500 HD models. According to GM, some 2022 model-year Chevy Silverado MD vehicles equipped with a Valve-Air Suspension Air Release (RPO code JPZ) were incorrectly invoiced with an Air Suspension Dump Valve, and thus may have been built with the incorrect switch assembly.
To address this issue, dealers will issue a reimbursement check to affected customers in the amount of $60. Additionally, a GM technician will replace the switch assembly and disable the Air Suspension Dump Valve switch and Low Pressure indicator. The fix includes a new IP Center Accessory Function switch.
Only qualified Chevy Silverado MD dealers can complete this new Customer Satisfaction Program repair. The Customer Satisfaction Program number is N222365910. It’s estimated that just 82 units of the involved vehicles will require replacement parts. Dealers will also require from owners three pieces of verifying information in order to issue the reimbursement check, including the original owner letter provided by General Motors, the vehicle registration, and the owner’s driver’s license or state ID, which must match the registration and owner letter.
For reference, the Chevy Silverado MD is equipped as standard with the 6.6L V8 L5D turbodiesel Duramax engine, rated at 350 horsepower and 700 pound-feet of torque. Production takes place at the Navistar plant in Springfield, Ohio.