apparently just plug it in and enjoy
19159438 - DIC Switch Package
DESCRIPTION: DIC Switch Package
Switch Package fits 2007-2012 Chevrolet Silverado and GMC Seirra. (For use without RPO Code SLT)
The Driver Information Center provides access to vehicle information and personalization options with the touch of a button. Allows you to set vehicle and driver preferences such as locking, lighting and seating options. It also provides you with vehicle information such as average fuel economy, fuel range, fuel used, oil life, tire pressure and more.
Not For Use on LT Models, Includes Instrument Panel Trim Plate.