Conditions For Clearing MIL/DTC

WARNING: This page is about a different car, the 2002 Pontiac Aztek and 2002 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

The control module will turn OFF the MIL during the third consecutive trip in which the diagnostic ran and passed.
The History DTC will clear after 40 consecutive warm-up cycles without a malfunction.
Clear the MIL and the DTC with a scan tool.