See also:

Service Vehicle Messages
SERVICE A/C SYSTEM This message displays when the electronic sensors that control the air conditioning and heating systems are no longer working. Have the climate control system serviced by ...

DIC Buttons
A. SET/CLR (Set/Clear): Use this button to set or clear the menu item when it is displayed. B. (Thumbwheel): Use the thumbwheel to scroll through the items in each menu. A small marker wil ...

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 ...