Hummer 2005 H2 - Manual (Page 242)

The traction off light will
come on when a Traction
Control System or
Anti-Lock Brake System
problem has been
detected and the vehicle
needs service.
See Traction Off Light on page 3-34.
When the traction off light is on, adjust your
driving accordingly.
The traction control system, as delivered from the
factory, will automatically come on whenever you start
your vehicle.
Locking Rear Axle
The locking rear axle can give your vehicle additional
traction from the rear wheels when traveling in off-road
situations such as mud, snow, sand, steep hills and
uneven terrain.
The button used to turn
this feature on or off is
located above the transfer
case buttons to the
right of the steering wheel.
To lock the rear axle, do the following:
1. Place the transfer case in the 4LO Lock mode. This
is the only mode which will allow the rear axle to
lock. See All-Wheel Drive on page 2-32 for
more information regarding the transfer case and
4LO Lock mode.
2. Press the button with the vehicle stopped or moving
less than 2 mph (3 km/h).
4-10