Driver Assistance Systems - GMC Sierra Instruction Manual

driving on downhill grades by
using the engine and
transmission to slow the vehicle.
To disable and enable Cruise
Grade Braking for the current
ignition key cycle, press and
hold the Tow/Haul button for
five seconds. A DIC message
displays. See Transmission
Messages 0 159.
Vehicles with a diesel engine
have Cruise Grade Braking
enabled when Tow/Haul Mode is
on, the exhaust brake is on,
or both are on.
For other forms of descent control,
see Hill Descent Control (HDC)
0 303,Automatic Transmission 0 284
, and Tow/Haul Mode 0 290.
Ending Cruise Control
There are four ways to end cruise
control:
Step lightly on the brake pedal.
Press .
Shift the transmission to
N (Neutral).
To turn off cruise control,
press .
Erasing Speed Memory
The cruise control set speed is
erased from memory if
or the ignition is turned off.
I n f o r ma t i o n P r o v i d e d b y :
Driving and Operating
Driver Assistance
Systems
This vehicle may have features that
work together to help avoid crashes
or reduce crash damage while
driving, backing, and parking. Read
this entire section before using
these systems.
Do not rely on the Driver
Assistance Systems. These
systems do not replace the need
is pressed
for paying attention and driving
safely. You may not hear or feel
alerts or warnings provided by
these systems. Failure to use
proper care when driving may
result in injury, death, or vehicle
damage. See Defensive Driving
0 256.
307
Warning
(Continued)