Its Shop Time Mondays: GM Is Recalling Over 750,000 Silverado And Sierra Trucks

 

1. Roof Rail Air Bag Inflator May Rupture

A separated inflator end cap or inflator rupture can allow compressed gas to escape, resulting in the end cap or other components being propelled into the vehicle, increasing the risk of injury or crash.

NHTSA Campaign Number: 21V504000

Manufacturer General Motors, LLC

Components AIR BAGS

Potential Number of Units Affected 410,019

Summary

General Motors LLC (GM) is recalling certain 2015-2016 GMC Sierra 1500, 2500, 3500, and Chevrolet Silverado 1500, 2500, and 3500 trucks. The roof-rail air bag (RRAB) inflator end cap may detach from the inflator, or the inflator sidewall may rupture.

Remedy

Dealers will replace the left and right side RRAB modules, free of charge. Interim owner notification letters informing owners of the safety risk are expected to be mailed August 16, 2021. Owners will receive a second notice when the remedy is available. Owners may contact GMC customer service at 1-888-988-7267 or Chevrolet customer service at 1-800-222-1020. This recall supersedes NHTSA recall number 20V-736. GM's number for this recall is N202324251.

2. Short Circuit In Engine Block Heater Cable

An electrical short-circuit can increase the risk of a fire.

NHTSA Campaign Number: 21V496000

Manufacturer General Motors, LLC

Components EQUIPMENT

Potential Number of Units Affected 331,274

Summary

General Motors, LLC (GM) is recalling certain 2017-2019 Chevrolet Silverado 2500, 3500 and 2017-2019 GMC Sierra 2500 and 3500 vehicles equipped with a Duramax diesel 6.6 liter engine and an optional engine-block heater cord. An electrical short-circuit may occur in the engine-block heater cable or in the terminals that connect the heater cable to the block heater.

Remedy

Dealers will disable the block heater, free of charge. GM will provide free replacement block heaters and cords under a separate customer satisfaction campaign. For vehicles previously included in recall 19V-328, the heater cord will be replaced and rerouted, free of charge. Owner notification letters are expected to be mailed August 16, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020; and GMC customer service at 1-800-462-8782. GM's number for this recall is 212329840.