Hummer 2006 H3 - Manual (Page 211)

Traction Control System (TCS)
Your vehicle has a Traction Control System (TCS) that
limits wheel spin. This is especially useful in slippery
road conditions. The system operates only if it senses
that any of the wheels are spinning or beginning to lose
traction. When this happens, the system applies the
brakes to limit wheel spin and also reduces engine
power. You may feel or hear the system working, but
this is normal.
The Traction Control System may operate on dry roads
under some conditions. When this happens, you may
notice a reduction in acceleration or a pumping sound.
This is normal and doesn’t mean there’s a problem with
your vehicle. Examples of these conditions include hard
acceleration in a turn, an abrupt upshift or downshift of
the transmission or driving on rough roads.
If your vehicle is in cruise control when the TCS begins
to limit wheel spin, the cruise control will automatically
disengage. When road conditions allow you to safely
use it again, you may re-engage the cruise control.
See Cruise Control on page 3-11.
If your vehicle has a Driver information Center (DIC),
a TRACTION FAILED message will appear when
a Traction Control System or Anti-Lock Brake System
problem has been detected and the vehicle needs
service. See DIC Warnings and Messages on page 3-44
for more information.
When this message is on, the system will not limit
wheel spin. Adjust your driving accordingly.
The traction control system automatically comes on
whenever you start your vehicle. To limit wheel spin,
especially in slippery road conditions, you should always
leave the system on. But you can turn the traction control
system off if you ever need to.
To turn the system off,
press and release the
TCS button located on
the instrument panel.
This light will come on
steady when the traction
control system has been
turned off. This light flashes
when TCS is active.
4-9