Sensors

The solar sensor, located in the defrost grille in the middle of the instrument panel, monitors the solar heat. Do not cover the solar sensor or the system will not work properly.

The solar sensor, located in the defrost grille in the middle of the instrument panel, monitors the solar heat. Do not cover the solar sensor or the system will not work properly.

The interior temperature sensor, located in the headliner, measures the temperature of the air inside the vehicle.

The interior temperature sensor, located in the headliner, measures the temperature of the air inside the vehicle.

There is also an exterior temperature sensor located behind the front grille. This sensor reads the outside air temperature and helps maintain the temperature inside the vehicle. Any cover on the front of the vehicle could cause a false reading in the displayed temperature.

The climate control system uses the information from these sensors to maintain comfort settings by adjusting the outlet temperature, fan speed, and the air delivery mode.

The system may also supply cooler air to the side of the vehicle facing the sun. The recirculation mode will also be used as needed to maintain cool outlet temperatures.

    See also:

    Roadside Assistance Program
    U.S.: 1-888-881-3302 TTY Users (U.S.): 1-888-889-2438 Canada: 1-800-268-6800 Mexico: 01-800-466-0801 As the owner of a new GMC, you are automatically enrolled in the Roadside Assistance program. ...

    Power Mirrors
    To adjust the mirrors: 1. Move the selector switch to L (left) or R (right) to choose the driver or passenger mirror. 2. Press the arrows on the control pad to move each mirror in the desired di ...

    Climate Control System (With Heater Only)
    Climate Control System (With Heater Only) A. Fan Control B. Temperature Control C. Air Delivery Mode Control See Climate Control Systems (with Air Conditioning) on page 8‑1 or Climate Co ...