Doors - GMC Acadia Denali 2015 Owner's Manual

2-8 Keys, Doors, and Windows
The vehicle has rear door security
locks to prevent passengers from
opening the rear doors from the
inside.
Open the rear doors to access the
security locks on the inside edge of
each door.
To set the locks, insert a key into
the slot and turn it to the horizontal
position. The door can only be
opened from the outside with the
door unlocked. To return the door to
normal operation, turn the slot to the
vertical position.

Doors

Liftgate
Warning
Exhaust gases can enter the
vehicle if it is driven with the
liftgate or trunk/hatch open,
or with any objects that pass
through the seal between the
body and the trunk/hatch or
liftgate. Engine exhaust contains
carbon monoxide (CO) which
cannot be seen or smelled. It can
cause unconsciousness and even
death.
If the vehicle must be driven with
the liftgate or trunk/hatch open:
Close all of the windows.
Fully open the air outlets on
or under the instrument
panel.
Warning (Continued)
Adjust the climate control
system to a setting that
brings in only outside air and
set the fan speed to the
highest setting. See Climate
Control Systems in the
Index.
If the vehicle is equipped with
a power liftgate, disable the
power liftgate function.
See Engine Exhaust on
page 9-20.
To avoid damage to the liftgate or
liftgate glass, make sure the area
above and behind the liftgate is
clear before opening it.
(Continued)
Caution