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. To change the OnStar PIN, call OnStar and provide the Advisor with the current number.
See also:
Heated Mirrors
For vehicles with heated mirrors:
The heated outside rearview mirrors turn on when the rear window defogger is
on and help to clear fog or frost from the surface of the mirrors.
(Rear Window Defo ...
Full-Size Spare Tire
Your vehicle, when new, had a fully-inflated spare tire. A spare tire may lose air over time, so check its inflation pressure regularly. See Tire Pressure on page 10‑62 and Vehicle Load Limits o ...
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 ...