Service
Your dealer knows your vehicle best and wants you to be happy with it. We hope you will go to your dealer for all your service needs. You will get genuine GM parts and GM-trained and supported service people.
We hope you will want to keep your GM vehicle all GM. Genuine GM parts have one of these marks:

See also:
Entering the Feature Settings Menu
1. Turn the ignition on and place the vehicle in P (Park).
To avoid excessive drain on the battery, it is
recommended that the headlamps are turned off.
2. Press the customization button to enter ...
Check Engine Light
A computer system called OBD II (On-Board
Diagnostics-Second Generation) monitors operation
of the fuel, ignition, and emission control systems.
It ensures that emissions are at acceptable levels ...
What to Use
Use a mixture of one-half clean, drinkable water
and one-half DEX-COOL® coolant. If you use
this coolant mixture, you do not need to add
anything else.
CAUTION:
Adding only plain water to your ...
