Jeep 2008 Liberty - Manual (Page 293)

CAUTION!
• Do not attempt to make a shift while only the front wheels
or rear wheels are spinning. The MP1522 Command-Trac ௡
transfer case is not equipped with a synchronizer and
therefore the speed of the front driveshaft and rear drive-
shaft must be equal for the shift to take place. Shifting
while only the front wheels or rear wheels are spinning can
cause damage to the transfer case.
• The 4WD Lock position and 4WD Low position are in-
tended for loose or slippery road surfaces only. Driving in
these positions on dry hard surfaced roads may cause
increased tire wear and damage to the driveline compo-
nents.
• When operating your vehicle in 4WD LOW, the engine
speed is approximately three times that of the 2WD posi-
tion or 4WD LOCK position at a given road speed. Take
care not to over-speed the engine and do not exceed 25 mph
(40 km/h).
• Proper operation of 4-wheel drive vehicles depends on tires
of equal size, type, and circumference on each wheel. Any
difference in tire size can cause damage to the transfer case.
WARNING!
• You or others could be injured if you leave the
vehicle unattended with the transfer case in the
Neutral (N) position without first fully engaging
the parking brake. The transfer case Neutral (N)
position disengages both the front driveshaft and
rear driveshaft from the powertrain and it will
allow the vehicle to move despite the transmission
position. The parking brake should always be
applied when the driver is not in the vehicle.
• Always engage the parking brake when powering
down the vehicle if the “SERV 4WD” light is
illuminated. Not engaging the parking brake may
allow the vehicle to roll, which may cause personal
injury.
• Since 4-wheel drive provides improved traction,
there is a tendency to exceed safe turning and
stopping speeds. Do not go faster than road condi-
tions permit. You or others could be injured.
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