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Recall 17V664000

Fuel Leaks From Front Fuel Tank Due To Overfilling By Rear Fuel Tank

Recall Details

The front fuel tank may become overfilled due to a faulty low fuel level sensor, causing the rear fuel tank to overfill the front fuel tank. This can cause the front fuel tank to expand and contact the drive shaft, resulting in a hole developing in the front tank and fuel leaking. Dealers will replace the rear tank fuel pump or update the fuel-level sensor software as well as inspect the front tank, replacing it as necessary free of charge to resolve the concern.

Our Quick Take

The rear fuel tank and front fuel tank work together to balance fuel levels during normal vehicle operation and filling of fuel tanks. At times, the rear fuel tank may overfill the front fuel tank because the front tank low fuel level sensor may stick. This can cause the front fuel tank to expand and contact the drive shaft, which could cause a hole to develop in the front fuel tank and result in a fire hazard.

What Should You Do?

Recall repairs on your Chevrolet or GMC truck must be performed by a General Motors dealership. General Motors will notify known owners of affected vehicles beginning in December, 2017. If you do not receive a notification, but wish to check to see if your vehicle is included, please contact one of your local General Motors dealerships. They will also check for any other incomplete recalls on your vehicle. For best results, be prepared to provide your Vehicle Identification Number (VIN) to the service department consultant you speak with. The General Motors recall number is 17399.

Exhaust & Emissions, October 19, 2017

Original Recall from the NHTSA

Manufacturer's Report Date
October 19, 2017
NHTSA Action Number
N/A
Potential Number of Units Affected
35,292
NHTSA CAMPAIGN ID Number
17V664000
Component
FUEL SYSTEM, GASOLINE
Summary
General Motors LLC (GM) is recalling certain 2011-2015 Chevrolet Silverado 3500 and GMC Sierra 3500 trucks equipped with dual fuel tanks. The low fuel level sensor for the front tank may stick causing the rear tank to overfill the front tank.
Consequence
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.
Remedy
GM will notify owners, and dealers will replace the rear tank fuel pump or update the fuel-level sensor software, as well as inspect the front tank, replacing it as necessary, free of charge. Interim notices are expected to be mailed December 18, 2017. Owners will receive a second notice in February 2018 when the remedy is expected to be available. Owners may contact GM customer service for Chevrolet 1-800-222-1020 or for GMC customer service at 1-800-462-8782. GM's number for this recall is 17399.
Notify
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
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Recall data provided by the National Highway Traffic Safety Administration