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:
Bulb Replacement
For any bulb changing procedure not listed in this
section, contact your dealer. ...
XM™ Satellite Radio Service
For vehicles equipped with the
MyLink or IntelliLink infotainment
system, see the separate MyLink/IntelliLink Features and Functions
Guide for more information.
Vehicles with an XM satellite ra ...
Horn
Press on the steering wheel pad
to sound the horn. ...
