Conditions for Setting the DTC

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The fuel level change is greater than 10 percent.
The above condition is present for less than 30 seconds.
Both conditions above occur 2 out of 3 times as part of a refueling event test.