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:
Accepting or Declining a Call
When an incoming call is received,
the infotainment system mutes and
a ring tone is heard in the vehicle.
Accepting a Call
Turn the Menu knob to “Answer”
and press SELECT to accept
the c ...
When Should an Airbag Inflate?
Frontal airbags are designed to
inflate in moderate to severe frontal
or near frontal crashes to help
reduce the potential for severe
injuries, mainly to the driver's or
front outboard passe ...
Roadside Assistance and OnStar
If you have an active OnStar
subscription, press the Q button and the current GPS location will be sent to
an OnStar Advisor who will assess your problem, contact Roadside Assistance, and
relay y ...