See also:

Air Quality Sensor
For vehicles with an air quality sensor, the climate control system adjusts to limit some exhaust fumes from being pulled inside your vehicle. Press the AUTO button on the climate control t ...

Exterior Lamps Off Reminder
If a door is open, a reminder chime sounds when the headlamps or parking lamps are manually turned on and the key is out of the ignition. To turn off the chime, turn the headlamp switch to off or ...

Up-Shift Light
The vehicle may have an up-shift light. It indicates when to shift to the next higher gear for best fuel economy. See Manual Transmission for more information. For the CTS-V, the tracer ligh ...