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:
Power Reclining Seatbacks
The front seats have
power reclining
seatbacks. Use the
vertical power seat
control located on the
outboard side of the seat
to operate them.
• To recline the seatback, press the control
...
Head Restraints
The vehicle's front seats have adjustable head restraints in the outboard seating positions.
The vehicle's rear seats have adjustable head restraints in the outboard seating positions.
WARNING
W ...
Your Responsibility
Increase the volume of the radio if the OnStar Advisor cannot be heard.
If the light next to the OnStar buttons is red, the system may not be functioning properly. Push and request a vehicle diagnos ...