ECM Reprogramming

WARNING: This page is about a different car, the 2007 Pontiac Montana SV6, 2007 Chevrolet Uplander, and 2007 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.

If the ECM needs to be reprogrammed, refer to Service Programming System (SPS) .
Engine Oil Life Remaining-When available, use a scan tool to reset the Engine Oil Life Remaining back to the original percentage recorded before the module was reprogrammed.

IMPORTANT: After programming, perform the following to avoid future misdiagnosis:

Turn the ignition OFF for 30 seconds.
Turn the ignition ON with the engine OFF.
Use the scan tool in order to retrieve history DTCs from all modules.
Clear all history DTCs.