GMC YUKON 2018 Owner's Manual page 200

Allow greater following distance
and watch for slippery spots. Icy
patches can occur on otherwise
clear roads in shaded areas.
The surface of a curve or an
overpass can remain icy when
the surrounding roads are clear.
Avoid sudden steering
maneuvers and braking while
on ice.
Turn off cruise control.
Blizzard Conditions
Stop the vehicle in a safe place and
signal for help. Stay with the vehicle
unless there is help nearby.
If possible, use Roadside
Assistance. See Roadside
Assistance Program 0 390. To get
help and keep everyone in the
vehicle safe:
Turn on the hazard warning
flashers.
Tie a red cloth to an outside
mirror.
Warning
Snow can trap engine exhaust
under the vehicle. This may
cause exhaust gases to get
inside. Engine exhaust contains
carbon monoxide (CO), which
cannot be seen or smelled. It can
cause unconsciousness and even
death.
If the vehicle is stuck in snow:
Clear snow from the base of
the vehicle, especially any
blocking the exhaust pipe.
Open a window about 5 cm
(2 in) on the vehicle side
that is away from the wind,
to bring in fresh air.
Fully open the air outlets on
or under the instrument
panel.
Adjust the climate control
system to circulate the air
inside the vehicle and set
(Continued)
Driving and Operating
Warning (Continued)
the fan speed to the highest
setting. See Climate
Control Systems.
For more information about CO,
see Engine Exhaust 0 215.
To save fuel, run the engine for
short periods to warm the vehicle
and then shut the engine off and
partially close the window. Moving
about to keep warm also helps.
If it takes time for help to arrive,
when running the engine, push the
accelerator pedal slightly so the
engine runs faster than the idle
speed. This keeps the battery
charged to restart the vehicle and to
signal for help with the headlamps.
Do this as little as possible, to
save fuel.
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