Add-on Electrical Equipment

The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment. Added electrical equipment may interfere with the operation of the OnStar system and cause it to not operate.

    See also:

    Remote Vehicle Start
    For vehicles with this feature, the engine can be started from outside of the vehicle. ...

    Bluetooth (Infotainment Controls)
    For information about how to navigate the menu system using the infotainment controls, see Operation . ...

    Ride Quality
    The ATS' ride quality is confident and comfortable. A difference of 1 inch in wheel diameter isn't always noticeable, but I found the 2.5L with its 17-inch wheels to ride a little softer than the ...