See also:

Trailer Towing (CTS-V and Coupe)
The vehicle is neither designed nor intended to tow a trailer. ...

Power Liftgate
On vehicles with a power liftgate, the switch is on the driver door. The vehicle must be in P (Park) to use the power feature. The taillamps flash when the power liftgate moves. WARNING ...

Installing the Third Row Seat
To install the seat: 1. Open the liftgate to access the rear of the vehicle. 2. Slide the front outboard seat wheels into the track on the floor and roll the seat forward. The front latches should ...