Black plate (32,1)
GMC Terrain/Terrain Denali Owner Manual - 2013 - crc 1st edition - 5/8/12
9-32
Driving and Operating
Hill Start Assist (HSA)
This vehicle has a Hill Start Assist
(HSA) feature, which may be useful
when the vehicle is stopped on a
grade. This feature is designed to
prevent the vehicle from rolling,
either forward or rearward, during
vehicle drive off. After the driver
completely stops and holds the
vehicle in a complete standstill on a
grade, HSA will be automatically
activated. During the transition
period between when the driver
releases the brake pedal and starts
to accelerate to drive off on a grade,
HSA holds the braking pressure to
ensure that there is no rolling. The
brakes will automatically release
when the accelerator pedal is
applied within the two
‐
second
window. It will not activate if the
vehicle is in a drive gear and facing
downhill or if the vehicle is facing
uphill and in R (Reverse).
Ride Control Systems
Traction Control
System (TCS)
The vehicle has a Traction Control
System (TCS) that limits wheel spin.
On a front-wheel-drive vehicle, the
system operates if it senses that
one or both of the front wheels are
spinning or beginning to lose
traction. On an All-Wheel-Drive
(AWD) vehicle, the system will
operate if it senses that any of the
wheels are spinning or beginning to
lose traction. When this happens,
the system brakes the spinning
wheel(s) and/or reduces engine
power to limit wheel spin.
The system may be heard or felt
while it is working, but this is
normal.
TCS is on whenever the vehicle is
started. To limit wheel spin,
especially in slippery road
conditions, the system should
always be left on. But, TCS can be
turned off if needed.
d
flashes to indicate that the
traction control system is active.
If there is a problem detected with
TCS, SERVICE TRACTION
CONTROL and SERVICE
STABILITRAK may be displayed on
the Driver Information Center (DIC)
and
d
will be on. See
Ride Control
System Messages on page 5
‑
28
.
When this message is displayed
and
d
comes on and stays on, the
vehicle is safe to drive but the
system is not operational. Driving
should be adjusted accordingly.