GMC 2010 Yukon XL Denali Owner's Manual page 21

See Dual Automatic Climate Control System on
page 4 18. For vehicles with a rear air conditioning and
heating system, see Rear Air Conditioning and Heating
System and Electronic Climate Controls on page 4 24.
Transmission
Range Selection Mode
The Range Selection Mode switch is located on the
shift lever. To enable the Range Selection feature,
move the column shift lever to the M (Manual) position.
The current range will appear next to the M. This is the
highest attainable range with all lower gears accessible.
As an example, when 4 (Fourth) gear is selected,
1 (First) through 4 (Fourth) gears are available.
Press the plus/minus buttons, located on the steering
column shift lever, to select the desired range of gears
for current driving conditions. See Automatic
Transmission Operation on page 3 30.
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 Tow/Haul Mode on page 3 34.
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