See also:

OnStar Personal Identification Number (PIN)
A PIN is needed to access some of the OnStar services, like Remote Door Unlock and Stolen Vehicle Assistance. You will be prompted to change the PIN the first time when speaking with an Advisor. T ...

Exterior
The Yukon has a one-piece grille and taller headlights than its sister Tahoe, with jewel-like bezels and a wider, lower air dam. The rest of the body features blocky fenders, long rear-quarter win ...

Finish Care
Application of aftermarket clearcoat sealant/wax materials is not recommended. If painted surfaces are damaged, see your dealer to have the damage assessed and repaired. Foreign materials such as calc ...