height JEEP GRAND CHEROKEE 2011 WK2 / 4.G User Guide

•Sand/Mud – Off-road calibration
for use on low traction surfaces such
as mud, sand, or wet grass. Driveline
is maximized for traction. Some
binding may be felt on less forgiving
surfaces. The electronic brake controls
are set to limit traction control
management of throttle and wheel
spin.
• Rock – Off-road calibration only
available in 4WD Low range. The
vehicle is raised (if equipped with Air
Suspension) for improved ground
clearance. Traction based tuning with
improved steer-ability for use on high
traction off-road surfaces. Activates
the Hill Descent Control for steep
downhill control. Use for low speed
obstacles such as large rocks, deep
ruts, etc.
Quadra-Lift™
• The Quadra-Lift™ air suspension system provides full time load leveling
capability along with the benefit of
being able to adjust vehicle height by
the push of a button. Quadra-Lift™ is
available with both Quadra-Trac II
®
and Quadra-Drive II™.
• The system requires that the engine be running for all changes. When
lowering the vehicle all of the doors,
including the liftgate, must be closed. • The Quadra-Lift™ air suspension
system uses a lifting and lowering
pattern which keeps the headlights
from shining into oncoming traffic.
When raising the vehicle, the rear of
the vehicle will move up first and then
the front. When lowering the vehicle,
the front will move down first and then
the rear.
• After the engine is turned off, you may notice that the air suspension system
operates briefly. This is normal. The
system is correcting the position of the
vehicle.
• To assist with changing a spare tire, the Quadra-Lift™ air suspension
system has a feature which allows the
automatic leveling to be disabled.
Press and hold both the “Up” and
“Down” buttons simultaneously
between 5 and 10 seconds; a
message will appear in the EVIC
stating leveling has been disabled
immediately after both buttons have
been released. Driving the vehicle
over 5 mph (8 km/h) will return the
air suspension to normal operation.
• An audible chime will be heard whenever a system error has been
detected.
Operation • Pressing the “Up” or “Down” button once will move the suspension one
position higher or lower from the
current position, assuming all
conditions are met (i.e., engine
running and all doors and liftgate
closed).
• The 4 indicator lamps will illuminate to show the current position of the
vehicle. Flashing indicator lamps will
show a position which the system is
working to achieve. If multiple
indicator lamps are flashing on the
“Up” button, the highest flashing
indicator lamp is the position the
system is working to achieve.
OFF-ROAD CAPABILITIES
58

• Normal Ride Height(NRH) – This is the
standard position of the
suspension and is meant
for normal driving. Only
the bottom Indicator lamp
on the “Up” button will be illuminated
when the vehicle is in this position.
• Off-Road 1 (OR1) (Raisesthe vehicle approximately
1.3 in (33 mm) – This
position is intended for
off-road driving only
where vehicle speeds may
go above 25 mph (40 km/h). Press
the “Up” button once from NRH while
vehicle speed is below 48 mph
(77 km/h). The bottom two Indicator
lamps on the “Up” button will be
illuminated when the vehicle is in
OR1.
• Off-Road 2 (OR2) (Raisesthe vehicle approximately
2.6 in (65 mm) – This
position is intended for
off-road driving where
maximum ground
clearance is required. Press the “Up”
button twice from NRH, or once from
OR1 position while vehicle speed is
below 20 mph (32 km/h). All three
Indicator lamps on the “Up” button
will be illuminated when the vehicle is
in OR2.
• Park Mode (Lowers thevehicle approximately
1.5 in (38 mm) – This
position lowers the vehicle
for easier passenger entry
and exit. Press the
“Down” button once from NRH while
the vehicle speed is below 25 mph
(40 km/h). Once the vehicle speed
goes below 15 mph (24 km/h) the
vehicle height will begin to lower. The
Indicator lamp on the “Down” button
will be illuminated when the vehicle is
in Park Mode.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.
• The air suspension system uses a high pressure volume of air to
operate the system. To avoid
personal injury or damage to the
system, see your authorized dealer
for service.
Hill Start Assist/Hill
Descent Control
• The Hill Start Assist system assists the
driver when starting a vehicle from a
stop on a hill.
• The Hill Descent Control system maintains vehicle speed while
descending hills during off-road
driving situations and is available in
4WD HIGH range and 4WD LOW
range.
• Refer to your Owner's Manual on the DVD for further details.
UP
UP
UP
DOWN
PARK
OFF-ROAD CAPABILITIES
59