If the fuel gauge indicates an inaccurate reading it may result in the vehicle unexpectedly stalling, increasing the risk of a crash.

Fuel System, Diesel

Summary
General Motors LLC (GM) is recalling certain model year 2012-2013 Chevrolet Silverado HD and GMC Sierra HD vehicles, equipped with 6.6L diesel engines and dual fuel tanks. In the affected vehicles, the transfer pump which moves fuel from the rear tank to the front tank could malfunction and cause the fuel gauge to indicate an inaccurate reading.
Actions
General Motors will notify owners and dealers will inspect and replace the fuel transfer pump, as necessary, free of charge. The manufacturer has not yet provided a notification schedule. The recall began on May 30, 2014. Owners may contact Chevrolet at 1-800-222-1020 and GMC at 1-800-462-8782. GM's number for this recall is 13420.
Documents (13)

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Date Announced
DEC 11, 2013
Vehicles Affected
9,733
GMC Recall #
13420/13421
NHTSA Campaign #
13V615000
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