Four-Wheel Drive - Chevrolet 2008 TrailBlazer Owner's Manual

When the vehicle senses a loss of traction, the system
will automatically engage four-wheel drive. Driving in
this mode results in slightly lower fuel economy
than Two-Wheel High.
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4 (Four-Wheel High): This setting should be used
when you need extra traction, such as on snowy or
icy roads or in most off-road situations. This setting also
engages your front axle to help drive your vehicle.
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4 (Four-Wheel Low): This setting also engages
your front axle and delivers extra torque. It sends
maximum power to all four wheels. You might choose
this setting if you are driving off-road in deep sand, deep
mud, and climbing or descending steep hills.
CAUTION:
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Shifting the transfer case to NEUTRAL can
cause your vehicle to roll even if the
transmission is in PARK (P). You or someone
else could be seriously injured. Be sure to set
the parking brake before placing the transfer
case in NEUTRAL. See Parking Brake on
page 2-32.
NEUTRAL: Shift the vehicle's transfer case to
NEUTRAL only when towing your vehicle. See
Recreational Vehicle Towing on page 4-42 for more
information.
An indicator light in the knob will show you which
position the transfer case is in. The indicator lights will
come on briefly when you turn on the ignition and
one will stay on. If the lights do not come on, you should
take your vehicle to your dealer for service. An
indicator light will flash while shifting the transfer case.
It will stay on when the shift is complete. If for some
reason the transfer case cannot make a requested shift,
it will return to the last chosen setting.
If the service Four-Wheel Drive Warning Light on the
instrument panel cluster stays on, you should take your
vehicle to your dealer for service. See Service
Four-Wheel Drive Warning Light on page 3-47 for
further information.
Shifting Into Four-Wheel High or Automatic

Four-Wheel Drive

Turn the knob to Four-Wheel High or Automatic
Four-Wheel Drive. This can be done at any speed
unless you are shifting out of Four-Wheel Low. The
indicator light will flash while shifting. It will remain on
when the shift is complete.
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