Start Up Mode
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.
After the engine has started, the BCM sets a targeted generator output voltage of 14.5 volts for 20 seconds.