See also:

Engine & Transmission
The CTS comes standard with a 3.0-liter V-6 engine, but our test car's optional 3.6-liter V-6 and six-speed automatic transmission are a special pair among drivetrains. The transmission's shifts a ...

PRESS BRAKE TO START ENGINE (AUTOMATIC TRANSMISSION ONLY)
If the vehicle has the keyless access system, this message displays if you try to start the engine without having the brake pressed. The brake needs to be pressed when starting the engine. Se ...

Backglass Antenna
The AM-FM antenna is integrated with the rear window defogger, located in the rear window. Make sure that the inside surface of the rear window is not scratched and that the lines on the glas ...