Hummer H2 2010 Owner's Manual page 153

Driver Shift Control (DSC)
The vehicle has Driver Shift Control (DSC). DSC
controls the transmission and vehicle speed while
driving down hill or towing a trailer by allowing you to
select a desired range of gears.
To use this feature:
1. Move the shift lever to the M (Manual Mode). This
will force a downshift from the current gear, for
gears 3 through 6.
2. Press the (+) plus or ( ) minus button on the left
side of the steering wheel , to select the desired
range of gears for current driving conditions.
When in the M (Manual Mode) a number will display
next to the M, indicating the maximum available gear.
The DIC display will show the message MANUAL
SHIFT on the first line and the maximum available gear
will be displayed on the second line. See Driver
Information Center (DIC) on page 4 42 and DIC
Operation and Displays (Using DIC Buttons) on
page 4 43 or DIC Operation and Displays (Using Trip
Odometer Reset Stem) on page 4 48 for more
information. The number displayed in the DIC is the
highest gear available. The transmission will be limited
to the gear selected and lower gears. Shifting will occur
normally while driving, however the cluster will continue
to display the maximum available gear. Higher gears
will not be available unless the selection is changed to
include higher gears using the (+) plus button.
Grade Braking is not available when the Driver Shift
Control is active. See Tow/Haul Mode on page 3 36
and Towing a Trailer on page 5 52 for more
information.
While using the DSC, cruise control and the tow/haul
mode can be used.
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