: Little bubble thing on dashboard just below the windsheild



Blocky
04-28-13, 12:34 AM
My CTS coupe has a little round thing. My Camaro had the same thing but it use to make a red flash. It does not do anything in my CTS. If anyone knows what I'm talking about....would you be able to tell me if yours flashes or if it doesn't do anything either. Thanks all!

gohawks63
04-28-13, 12:45 AM
My CTS coupe has a little round thing. My Camaro had the same thing but it use to make a red flash. It does not do anything in my CTS. If anyone knows what I'm talking about....would you be able to tell me if yours flashes or if it doesn't do anything either. Thanks all!

I believe that is the ambient light sensor(for the headlights).

like2drive
04-28-13, 12:52 AM
Mine does not flash either.
It's a the light and solar sensor. Together with the interior temperature sensor located to the right of the steering wheel, the solar sensor sends information to the climate control system and the latter adjusts the fan speed and the air delivery to maintain the selected temperature. The system may also supply cooler air to the side of the vehicle facing the sun.