Conditions for Clearing the DTC

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The ECM will command the indicator OFF after one trip in which the diagnostic test has been run and passed.
A history DTC will clear after 40 consecutive warm-up cycles have occurred without a malfunction.