CHEVROLET 2012 Avalanche - Manual (Page 284)

Black plate (34,1) Chevrolet Avalanche Owner Manual - 2012 - crc 2nd edition - 11/7/11
9-34 Driving and Operating
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 9‑34
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 while driving
down steep hills or 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. While the tow/haul is on, a
light on the instrument panel cluster
comes on.
See Tow/Haul Mode Light on
page 5‑21 and Hill and Mountain
Roads on page 9‑12 for more
information.
Also see “Tow Haul Mode” under
Towing Equipment on page 9‑71 for
more information.
Grade Braking
The Grade Braking shift modes can
be activated by pressing the button
on the end of the shift control lever.
While in Range Selection Mode,
Grade Braking is deactivated
allowing the driver to select a
desired range of gears.
Grade Braking is only active while
the Tow/Haul Mode is selected and
you are not in the Range Selection
Mode. See “Tow/Haul Mode” listed
previously and Manual Mode on
page 9‑33 for more information on
the Range Selection Mode. Grade
Braking assists in maintaining
desired vehicle speeds when driving
on downhill grades by automatically
implementing a shift schedule that
utilizes the engine and transmission
to slow the vehicle. This reduces
wear on the braking system and
increases control of the vehicle.
Grade Braking monitors vehicle
speed, acceleration, engine torque
and brake pedal usage. Using this
information, it detects when the
truck is on a downhill grade and the
driver desires to slow the vehicle by
pressing the brake.