Liftgate/Liftglass - GMC Yukon Owner's Manual

Liftgate/Liftglass

WARNING:
It can be dangerous to drive with the liftglass or
liftgate open because carbon monoxide (CO) gas
can come into your vehicle. You cannot see or
smell CO. It can cause unconsciousness and
even death.
If you must drive with the liftglass or liftgate open,
or if electrical wiring or other cable connections
must pass through the seal between the body and
the liftglass or liftgate:
Make sure all other windows are shut.
Turn the fan on your heating or cooling
system to its highest speed with the
recirculation mode off. That will force outside
air into your vehicle. See Climate Control
System on page 4 18 or Dual Automatic
Climate Control System on page 4 20.
WARNING: (Continued)
See Engine Exhaust on page 3 52.
If your vehicle has a power liftgate, see Power Liftgate
on page 3 15.
To unlock the liftgate, use the power door lock switch or
press the door unlock button on the Remote Keyless
Entry (RKE) transmitter twice. See Remote Keyless
Entry (RKE) System Operation on page 3 5.
(Continued)
If you have air outlets on or under the
instrument panel, open them all the way.
If your vehicle has a power liftgate, disable the
power liftgate function.
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