Ice Possible
WARNING: This page is about a different car, the 2008 Suzuki XL7. However, it is still accessible from the selected car via links, so may be relevant.
The driver information center (DIC) displays ICE POSSIBLE for 10 seconds when the outside air temperature drops below 2.0 °C (36 °F). The instrument panel cluster (IPC) receives a serial data message indicating the outside air temperature from the HVAC control module