GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 7/5/16
In Brief
19
Transmission
Range Selection Mode
The Range Selection Mode switch,
if equipped, is on the shift lever.
1. To enable the Range Selection
feature, move the shift lever to
the L (Manual Mode) position.
The current range will appear
next to the L. This is the
highest attainable range with
all lower gears accessible. As
an example, when 5 (Fifth)
gear is selected, 1 (First)
through 5 (Fifth) gears are
available.
2. Tap the plus/minus buttons on
the shift lever to select the
desired range of gears for
current driving conditions. See
.
While using Range Selection Mode,
cruise control and the Tow/Haul
Mode can be used.
Grade Braking is not available when
Range Selection Mode is active.
See
Four-Wheel Drive
If equipped with four-wheel drive,
you can send the engine's driving
power to all four wheels for extra
traction.
Automatic Transfer Case
This transfer case knob is to the left
of the steering column.
The different drive options that may
be available are described following.
2
m
(Two-Wheel Drive High) :
This
setting is used for driving in most
street and highway situations.
AUTO (Automatic Four-Wheel
Drive) :
This setting is ideal for use
when road surface traction
conditions are variable.
Do not use AUTO mode to park on
a steep grade with poor traction
such as ice, snow, mud or gravel. In
AUTO mode only the rear wheels
will hold the vehicle from sliding
when parked. If parking on a steep
grade, use 4
m
to keep all four
wheels engaged.
4
m
(Four-Wheel Drive High) :
Use
this setting when extra traction is
needed, such as on snowy or icy
roads or in most off-road situations.
4
n
(Four-Wheel Drive Low) :
This
setting sends maximum power to all
four wheels. Choose 4
n
when
driving in deep sand, mud, or snow,
and while climbing or descending
steep hills.
