Power Running Boards - GMC Yukon 2007 Owner's Manual

CAUTION:
{
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 227 or Dual Automatic Climate
Control System on page 231.
CAUTION: (Continued)
CAUTION: (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.
See Engine Exhaust on page 164.

Power Running Boards

Your vehicle may have power running boards.
The power running boards automatically extend
from beneath the vehicle on the side in which the
door has been opened. Once the door is closed,
the running boards will automatically move
back under the vehicle. The vehicle must not be
moving for the running boards to extend or retract.
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