Need some help. First a little context. 5 days ago I hit a deer (<10mph and deer hopped away after), but with only superficial cosmetic damage (cracked plastic license plate holder and plastic grill work). I had to point out to my wife where the damage was, that's how insignificant it was. Yesterday though, the check engine light came on. SUV is driving normally as best I can tell. This morning I got up to get the code scanned and I had three more lights on. The terrain management system selector switch no longer works, BOTH the STABILITY CONTROL LIGHT and the STABILITY CONTROL OFF LIGHT are on, and the computer says DOWNHILL ASSIST IS NOT FUNCTIONAL. It is currently 4°F outside too. On the drive home from scanning I did a hard brake on a snowy patch of road and the ABS brakes appear to be functioning properly. Anyway, I scanned the code on three different scanners and the only code each gave me was: P0073 Ambient Air Temperature Sensor Circuit High Input Now, I know where the Ambient Air Temp Sensor is located (behind grill, in front of radiator). I can see how the impact with the deer may have damaged the sensor, loosened a connection, or shorted a wire. BUT, I cannot figure how the terrain management system issue is related. Seems too coincidental that the TMS light came on less than 12 hours after the check engine light tripped. Any thoughts?