Vehicle Security; Vehicle Alarm System - GMC Yukon XL 2015 Owner's Manual

2-24 Keys, Doors, and Windows
closed. The power assist steps will
retract immediately if the vehicle
starts moving.
Keep hands, children, pets, objects,
and clothing clear of the power
assist steps when in motion. The
steps will reverse direction if they
encounter an obstruction when
opening or closing. Remove the
obstruction, then open and close the
door on the same side to complete
the motion of the assist steps. If the
obstruction is not cleared, the assist
steps remain extended while driving.
There are two other modes of
operation:
Deploy Mode: To extend both power
assist steps for cleaning, press
while the vehicle is in P (Park) or
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N (Neutral). Press again to
retract them. The DIC will display a
message.
Lock Mode: Press and hold
four seconds to lock and disable the
power assist steps. Press and
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hold for four seconds again to
enable them. The DIC will display a
message.

Vehicle Security

This vehicle has theft-deterrent
features; however, they do not make
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the vehicle impossible to steal.

Vehicle Alarm System

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for
The indicator light, on the
instrument panel near the
windshield, indicates the status of
the system.
Off: Alarm system is disarmed.
On Solid: Vehicle is secured
during the delay to arm the system.
Fast Flash: Vehicle is unsecured.
A door, liftgate or the hood is open.