Check Gages Warning Light
The check gages light will come on briefly when you are starting the engine.
If the light comes on and stays on while you are driving, check your coolant temperature and engine oil pressure gages to see if they are in the warning zones.
See also:
How to Add Automatic Transmission
Fluid
Refer to the Maintenance Schedule to determine what
kind of transmission fluid to use. See Recommended
Fluids and Lubricants.
If the fluid level is low, add only enough of the proper
fluid to b ...
High/Low-Beam Headlamps (Up-Level)
The high/low-beam headlamps on the up-level headlamp system are High Intensity Discharge (HID) and should be replaced at the dealer. ...
Navigation
OnStar navigation requires the Directions and Connections service plan.
Push to receive directions or have
them sent to the vehicle navigation screen. Destinations can also be forwarded to
the v ...