Power Door Locks
Press 
or
on the Remote Keyless Entry (RKE) transmitter.
See Remote Keyless Entry (RKE) System Operation .
Premium Trim Shown, Up-Level Similar
(Lock): Press to lock the doors.
(Unlock): Press to unlock the doors.
See also:
Protecting Exterior Bright Metal Parts
Regularly clean bright metal parts with water or chrome polish on chrome or stainless
steel trim, if necessary.
For aluminum, never use auto or chrome polish, steam, or caustic soap to clean.
A c ...
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
...
V-6 Power
The CTS coupe's standard 3.6-liter V-6 moves this two-door smartly enough,
but it doesn't necessarily feel like there's a 304-horsepower engine under the
hood. With a curb weight of around 4,000 p ...