Black plate (26,1)
Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6014662) - 2014 - crc - 8/26/13
9-26
Driving and Operating
rear wheels when trying to start the
vehicle from a stop on slippery road
surfaces.
1 (First):
This position reduces
vehicle speed without using the
brakes. You can use it for major/
severe downgrades where the
vehicle would otherwise accelerate
due to steepness of grade. When
you shift to 1 (First) it provides the
lowest gear appropriate to current
road speed and continues to
downshift as the vehicle slows,
eventually downshifting to 1 (First)
gear. The transmission can be held
in 1 (First) gear using Range
Selection Mode or the shift lever.
See
“
Range Selection Mode
”
under
Manual Mode on page 9-29
.
{
Caution
Spinning the tires or holding the
vehicle in one place on a hill
using only the accelerator pedal
may damage the transmission.
(Continued)
Caution (Continued)
The repair will not be covered by
the vehicle warranty. If you are
stuck, do not spin the tires. When
stopping on a hill, use the brakes
to hold the vehicle in place.
Normal Mode Grade Braking
Vehicles with a 6-speed automatic
transmission have Normal Mode
Grade Braking that is enabled when
the vehicle is started, but is not
enabled in Range Selection Mode.
It assists in maintaining desired
vehicle speeds when driving on
downhill grades by using the engine
and transmission to slow the
vehicle. The first time the system
activates for each ignition key cycle,
a DIC message will be displayed.
See
Transmission Messages on
page 5-38
.
To disable or enable Normal Mode
Grade Braking within the current
ignition key cycle, press and hold
the Tow/Haul button for
three seconds. A DIC message
displays. See
Transmission
Messages on page 5-38
.
For other forms of grade braking,
see
Tow/Haul Mode on page 9-30
and
Cruise Control on page 9-35
.
Automatic Transmission
(Four Speed)
There are several different positions
for the shift lever.
P (Park):
This position locks the
rear wheels. It is the best position to
use when you start the engine
because the vehicle cannot move
easily.
