See also:

ELECTRONIC KEY ALREADY KNOWN
If the vehicle has the keyless access system, this message displays if you try to match a transmitter that has already been learned. See the keyless access information for Remote Keyless E ...

Interior Quality & Comfort
The CTS' cabin quality has held up well since this generation first hit the road as a 2008 model, and it's still competitive against newer entrants like the 535i and M37. Among the highlights are ...

Rear Seat Entertainment (RSE) System (Headrest DVD)
Vehicles with an RSE system include two head restraint video display screens with integrated DVD players, auxiliary inputs, two wireless headphones, and a remote control. This system works indepen ...