Hummer 2006 H2 User Manual download pdf (Page 263)

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101

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.

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.

Another feature of this system is the Traction

Control 2 (TC2) mode. TC2 should be selected for

improved traction and system performance when the

vehicle is on loose surfaces such as deep sand or mud.

To enter this mode,

press the TC2 button

located on the instrument

panel to the right of

the steering wheel.

TC2 only operates in the following transfer case modes:

• Four-Wheel-High Lock

• Four-Wheel-Low Lock

• Four-Wheel-Low Lock and Rear Axle Lock

See Locking Rear Axle on page 4-10 for more

information on the rear axle lock.

It will not operate in Four-Wheel-High. If the TC2 button

is pressed while in Four-Wheel High, the light will

ﬂash for about 15 seconds and then go out. The light

should also come on brieﬂy when you turn the ignition

key to RUN; if it doesn’t see your dealer for service.

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Hummer 2006 H2 User Manual Page 263

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