Ice Possible
WARNING: This page is about a different car, the 2007 Chevrolet Monte Carlo and 2007 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
The driver information center (DIC) displays ICE POSSIBLE DRIVE WITH CARE for 10 seconds when the HVAC module determines that the outside air temperature has dropped below 2.0°C (36°F). The instrument panel cluster (IPC) receives a GMLAN message from the HVAC module to display the ICE POSSIBLE DRIVE WITH CARE.