Engine Oil Additives/Engine Oil Flushes
Do not add anything to the oil.
The recommended oils with the dexos specification and displaying the dexos certification mark are all that is needed for good performance and engine protection.
Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty.
See also:
Programming Transmitters to the Vehicle
Only keyless access transmitters
programmed to the vehicle will work.
If a transmitter is lost or stolen, a
replacement can be purchased and
programmed through your dealer.
The vehicle can be ...
Verify Minutes and Expiration
Push and say “minutes” then
“verify” to check how many minutes
remain and their expiration date. ...
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 ...