Tow/Haul Mode - GMC 2015 Savana Owner's Manual

Tow/Haul Mode

If equipped, Tow/Haul Mode adjusts
the transmission shift pattern to
reduce shift cycling, providing
increased performance, vehicle
control, and transmission cooling
when towing or hauling heavy loads.
Turn the Tow/Haul Mode on and off
by pressing the button on the
instrument panel. When Tow/Haul is
on, a light on the instrument cluster
will come on.
See Tow/Haul Mode Light on
page 5-20.
Also see Tow/Haul Mode under
Towing Equipment on page 9-50.
Tow/Haul Mode Grade Braking
Tow/Haul Mode Grade Braking 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 9-26. 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.
Driving and Operating
To disable or enable Tow/Haul Mode
Grade Braking within the current
ignition key cycle, press and hold
the Tow/Haul button for
three seconds. A DIC message will
be displayed. See Transmission
Messages on page 5-35.
See Towing Equipment on
page 9-50.
For other forms of grade braking,
see Automatic Transmission on
page 9-22 and Cruise Control on
page 9-32.
9-27