See also:

How to Check Automatic Transmission Fluid (3.9L Engine)
Because this operation can be a little difficult, you may choose to have this done at the dealer/retailer service department. If you do it yourself, be sure to follow all the instructions here, ...

Instrument Panel Brightness
Press the knob located next to the exterior lamps knob to extend it. Turn the knob to adjust the instrument panel lights. Turn the knob all the way up to turn on the interior lamps. Press the k ...

OnStar Steering Wheel Controls
This vehicle may have a Talk/Mute button that can be used to interact with OnStar Hands-Free calling. See Steering Wheel Controls  for more information. On some vehicles, the Talk button can be ...