General Motors is recalling 18,574 model year 2016-2018 GMC Sierra 3500 and Chevrolet Silverado 3500 trucks equipped with gasoline engines and dual fuel tanks.
The fuel-level sensor in the front tank may stick in a low-level position, allowing the rear tank to overfill the front tank.
If the front tank overfills, the excess pressure may cause the front tank to expand and contact the driveshaft, possibly resulting in a hole in the tank. The hole will leak fuel, which in the presence of an ignition source, can increase the risk of a fire.
What to do
GM has notified owners, and dealers will replace the rear-tank fuel-pump module, inspect the front tank and, if necessary, replace the front tank free of charge.
Owners were mailed interim notices informing them of the safety risk on March 5, 2019. Owners will receive a second notice when the remedy becomes available.
GM's number for this recall is N182204190.