Tow/Haul Mode - GMC Yukon Denali 2013 Owner's Manual

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automatically shift to lower gears as
it adjusts to driving conditions. This
means that all gears below that
number are available. When 5 (Fifth)
is selected, 1 (First) through 5 (Fifth)
gears are automatically shifted by
the vehicle, but 6 (Sixth) cannot be
used until the plus/minus button
located on the steering column lever
is used to change to the gear.
Range Selection Mode controls the
vehicle and engine speed while
driving down a hill or towing a trailer,
by allowing you to select a desired
range of gears.
Grade Braking is not available when
the Range Selection Mode is active.
See Tow/Haul Mode on page 9 31
for more information.
While using the Range Selection
Mode, Cruise Control and the Tow/
Haul Mode can be used.

Tow/Haul Mode

The vehicle has a Tow/Haul Mode.
The Tow/Haul Mode adjusts the
transmission shift pattern to reduce
shift cycling, providing increased
performance, vehicle control, and
transmission cooling when driving
down steep hills and mountain
grades, towing, or hauling heavy
loads.
Press the button located on the end
of the shift lever to turn the tow/haul
on or off. When the tow/haul is on, a
light on the instrument panel cluster
will come on.
See Tow/Haul Mode Light on
page 5 22 and Hill and Mountain
Roads on page 9 11 for more
information.
Driving and Operating
Also see Tow/Haul Mode under
Towing Equipment on page 9 61 for
more information.
The Tow/Haul Mode works with the
®
Autoride
feature, if the vehicle has
this, to enhance the ride when
trailering or with a loaded vehicle.
See Continuous Damping Control
(CDC) on page 9 37.
Tow/Haul Mode Grade Braking
(6-Speed Automatic
Transmission)
This feature is only enabled while
the Tow/Haul Mode is selected and
the vehicle is not in the Range
Selection Mode. See Tow/Haul
Mode listed previously and Manual
Mode on page 9 30. Tow/Haul Mode
Grade Braking assists in
maintaining desired vehicle speeds
when driving on downhill grades by
using the engine and transmission
to slow the vehicle.
9-31

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