Chevrolet EXPRESS - 2011, Manual

Page: 247 / 422

Black plate (35,1)
Chevrolet Express Owner Manual - 2011
Driving and Operating 9-35
When the vehicle is started and
begins to move, the system
performs several diagnostic checks
to insure there are no problems.
The system may be heard or felt
while it is working. This is normal
and does not mean there is a
problem with the vehicle. The
system should initialize before the
vehicle reaches 32 km/h (20 mph).
In some cases, it may take
approximately 3.2 km (2 mi) of
driving before the system initializes.
Press the StabiliTrak button
once to turn off the Traction Control
System (TCS). Press and hold the
StabiliTrak button located on the
instrument panel for more than
five seconds to turn off StabiliTrak
and TCS.
The StabiliTrak light comes on the
instrument panel cluster when the
system is turned off or requires
service.
When StabiliTrak activates, the
TCS/StabiliTrak light flashes on the
instrument panel. This also occurs
when TCS is activated.
For more information, see
StabiliTrak
®
Indicator Light on
page 5 ‑ 25 .
For your safety, the system can
only be disabled when the vehicle
speed is less than 32 km/h
(20 mph). Three chimes will be
heard and the StabiliTrak light
comes on.
To turn on the StabiliTrak system,
press the StabiliTrak button again.
StabiliTrak will automatically turn
back on when the vehicle speed
exceeds 32 km/h (20 mph).
One chime is heard and the
StabiliTrak light will turn off.
When the StabiliTrak system has
been turned off, system noises may
still be heard as a result of the
brake-traction control coming on.
It is recommended to leave the
system on for normal driving
conditions, but it may be necessary
to turn the system off if the vehicle
is stuck in sand, mud, ice or snow,
and you want to
“ rock ” the vehicle to
attempt to free it. See If the Vehicle
is Stuck on page 9 ‑ 11 .
StabiliTrak System Operation
The StabiliTrak system is normally
on, except when the system is
initializing or has been disabled
with the StabiliTrak button. The
StabiliTrak system will automatically
activate to assist the driver in
maintaining vehicle directional
control in most driving conditions.