See also:

OnStar®
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. See OnStar Overview. ...

Under the Hood
Available only with rear-wheel drive, the 3.6-liter V-6 engine produces 255 horsepower and 252 pounds-feet of torque. Cadillac's 4.6-liter Northstar V-8 generates 320 hp and 315 pounds-feet of tor ...

Setting the Power Liftgate Intermediate Mode
To change the liftgate stop position: 1. Turn the liftgate switch to either the MAX, or the ¾ mode position and power open the liftgate. 2. Stop the liftgate movement at the desired hei ...