Jeep COMMANDER 2010 - Manual (Page 40)

FOUR-WHEEL DRIVE
OPERATION
Quadra-Trac I ® Operating
Instructions/Precautions
• The Quadra-Trac I ® is a single-speed
(HI range only) transfer case, which
provides convenient full-time
four–wheel drive. No driver interaction
is required. The Brake Traction Control
(BTC) System, which combines
standard ABS and Traction Control,
provides resistance to any wheel that is
slipping to allow additional torque
transfer to wheels with traction.
Quadra-Trac II ® /Quadra-Drive
II ® Operating Instructions/
Precautions
• The Quadra-Trac II ® /Quadra-Drive II ®
transfer case is fully automatic in the
normal driving 4WD HI mode. The
Quadra-Trac II
® /Quadra-Drive II ®
transfer case provides three mode
positions:
• 4WD HI
• NEUTRAL
• 4WD LOW
• This transfer case is fully automatic in
the 4WD HI mode.
• When additional traction is required,
the 4WD LOW position can be used to
lock the front and rear driveshafts
together and force the front and rear
wheels to rotate at the same speed.
The 4WD LOW position is intended for
loose, slippery road surfaces only.
Driving in the 4WD LOW position on
dry, hard-surfaced roads may cause
increased tire wear and damage to
driveline components.
• When operating your vehicle in 4WD
LOW, the engine speed is
approximately three times that of the
4WD HI position at a given road speed.
Take care not to overspeed the engine
and do not exceed 25 mph (40 km/h).
NOTE:
• If shift conditions/interlocks are not
met, or a transfer case motor
temperature protection condition
exists, a “CHECK SHIFT PROCEDURES”
message will flash from the Electronic
Vehicle Information Center (EVIC).
WARNING!
You or others could be injured if you
leave the vehicle unattended with the
transfer case in the N (Neutral)
position without first fully engaging
the parking brake. The transfer case
N (Neutral) position disengages both
the front and rear driveshafts from
the powertrain and will allow the
vehicle to move regardless of the
transmission position. The parking
brake should always be applied when
the driver is not in the vehicle.
OFF-ROAD CAPABILITIES
38