GMC 2006 Sierra - Manual (Page 141)

Recommended Transfer Case Settings
Driving Conditions
Transfer Case Settings
2
m
4
m
4
n N
Normal YES
Severe YES
Extreme YES
Vehicle in Tow* YES
*See Recreational Vehicle Towing on page 4-62 or
Towing Your Vehicle on page 4-62 for further
information.
Use these switches to shift into and out of four-wheel
drive. You can choose among three driving settings:
2
m
(Two-Wheel High): This setting is for driving in
most street and highway situations. Your front axle is not
engaged in two-wheel drive.
{ CAUTION:
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 2-52.
(N) NEUTRAL: Shift the vehicle’s transfer case to
NEUTRAL only when towing your vehicle. See
Recreational Vehicle Towing on page 4-62 or Towing
Your Vehicle on page 4-62 for more information.
4
m
(Four-Wheel High): This setting engages your
front axle to help drive your vehicle. Use four-wheel high
when you need extra traction, such as on snowy or icy
roads, or in most off-road situations.
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