Where is the ambient temperature sensor on a 2006 Chevy trailblazer?

The ambient temperature sensor on a 2006 Chevy Trailblazer is typically located in the front grille area, often mounted on or near the front bumper. It is designed to measure the outside air temperature and relay that information to the vehicle's climate control system. If you're having trouble locating it, you might also check near the radiator or in the vicinity of the driver's side headlight.