2015 JEEP GRAND CHEROKEE Owners Manual

6. Using a ballpoint pen or similar object, push and hold
the recessed transfer case “N” button (located by the
selector switch) for one second.
7. When the NEUTRAL (N) indicator light turns off,
release the NEUTRAL (N) button.
8. After the NEUTRAL (N) button has been released, the
transfer case will shift to the position indicated by the
selector switch.
Quadra-Drive® II System — If Equipped
The optional Quadra-Drive® II System features two
torque transfer couplings. The couplings include an
Electronic Limited-Slip Differential (ELSD) rear axle and
the Quadra-Trac II® transfer case. The optional ELSD
axle is fully automatic and requires no driver input to
operate. Under normal driving conditions, the unit func-
tions as a standard axle, balancing torque evenly between
left and right wheels. With a traction difference between
left and right wheels, the coupling will sense a speed
difference. As one wheel begins to spin faster than the
other, torque will automatically transfer from the wheel
that has less traction, to the wheel that has traction. While
NEUTRAL (N) Switch
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the transfer case and axle coupling differ in design, their
operation is similar. Follow the Quadra-Trac II® transfer
case shifting information, preceding this section, for
shifting this system.
SELEC-TERRAIN™ — IF EQUIPPED
Description
Selec-Terrain™ combines the capabilities of the vehicle
control systems, along with driver input, to provide the
best performance for all terrains.
Selec-Terrain™ consists of the following positions:
•Snow– Tuning set for additional stability in inclement
weather. Use on and off road on loose traction surfaces
such as snow. When in Snow mode (depending on
certain operating conditions), the transmission may
use second gear (rather than first gear) during
Selec-Terrain™ Switch
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launches, to minimize wheel slippage. If equipped
with air suspension, the default ride height for Snow is
NRH.
•Auto– Fully automatic full time four-wheel drive
operation can be used on and off road. Balances
traction with seamless steering feel to provide im-
proved handling and acceleration over two-wheel
drive vehicles. If equipped with air suspension, the
level will change to NRH.
•Sand– Off road calibration for use on low traction
surfaces such as sand or wet grass. Driveline is maxi-
mized 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. If equipped with air suspension, the
default ride height for Sand is NRH.
•Mud– Off road calibration for use on low traction
surfaces such as mud. 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. If equipped with air suspension, the level will
change to Off Road 1.
•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. Use for low speed
obstacles such as large rocks, deep ruts, etc. If
equipped with air suspension, the vehicle level will
change to Off-Road 2. If the Selec-Terrain™ switch is in
ROCK mode, and the transfer case is switched from
4WD Low to 4WD High, the Selec-Terrain™ system
will return to AUTO.
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NOTE:Activate the Hill Descent Control or Selec Speed
Control for steep downhill control. See “Electronic Brake
Control System” in this section for further information.
Driver Information Display (DID) Messages
When the appropriate conditions exist, a message will
appear in the DID display. Refer to “Driver Information
Display (DID)” in “Understanding Your Instrument
Panel” for further information.
QUADRA-LIFT™ — IF EQUIPPED
Description
The Quadra-Lift™ air suspension system provides full
time load leveling capability along with the benefit of
vehicle height adjustment by the push of a button.
Selec-Terrain™ Switch
1—UpButton2—DownButton3 — Entry/Exit Mode Indicator Lamp (Customer Selectable)4—NormalRideHeightIndicatorLamp(CustomerSelectable)5 — Off-Road 1 Indicator Lamp (Customer Selectable)6 — Off-Road 2 Indicator Lamp (Customer Selectable)
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•Normal Ride Height (NRH)– This is the standard
position of the suspension and is meant for normal
driving.
•Off-Road 1 (OR1) (Raises the vehicle approximately
1.1 in (28 mm)– This is the primary position for all
off-road driving until OR2 is needed. A smoother and
more comfortable ride will result. Push the “Up”
button once from the NRH position while the vehicle
speed is below 38 mph (61 km/h). When in the OR1
position, if the vehicle speed remains between 40 mph
(64 km/h) and 50 mph (80 km/h) for greater than 20
seconds or if the vehicle speed exceeds 50 mph
(80 km/h), the vehicle will be automatically lowered to
NRH. Refer to “Off-Road Driving Tips” in “Starting
and Operating” for further information.
•Off-Road 2 (OR2) (Raises the vehicle approximately
2.2 in (55 mm)– This position is intended for off-
roading use only where maximum ground clearance is
required. To enter OR2, push the “Up” button twice
from the NRH position or once from the OR1 position
while vehicle speed is below 20 mph (32 km/h). While
in OR2, if the vehicle speed exceeds 25 mph (40 km/h)
the vehicle height will be automatically lowered to
OR1. Refer to “Off-Road Driving Tips” in “Starting
and Operating” for further information.
•Aero Mode (Lowers the vehicle approximately 0.6 in
(15 mm)– This position provides improved aerody-
namics by lowering the vehicle. The vehicle will
automatically enter Aero Mode when the vehicle
speed remains between 52 mph (83 km/h) and 56 mph
(90 km/h) for greater than 20 seconds or if the vehicle
speed exceeds 56 mph (90 km/h). The vehicle will
return to NRH from Aero Mode if the vehicle speed
remains between 20 mph (32 km/h) and 25 mph
(40 km/h) for greater than 20 seconds or if the vehicle
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speed falls below 20 mph (32 km/h). The vehicle will
enter Aero Mode, regardless of vehicle speed if the
shift lever is in the “SPORT” position.
•Entry/Exit Mode (Lowers the vehicle approximately
1.6 in (40 mm)– This position lowers the vehicle for
easier passenger entry and exit as well as lowering the
rear of the vehicle for easier loading and unloading of
cargo. To enter Entry/Exit Mode, push 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. If the vehicle speed remains between 15 mph
(24 km/h) and 25 mph (40 km/h) for greater than 60
seconds, or the vehicle speed exceeds 25 mph
(40 km/h) the Entry/Exit Mode change will be can-
celled. To exit Entry/Exit Mode, press the “Up” button
once while in Entry/Exit Mode or drive the vehicle
over 15 mph (24 km/h).
NOTE:Automatic lowering of the vehicle into Entry/
Exit Mode can be enabled through the Uconnect® Touch-
Screen Radio. If this feature is enabled, the vehicle will
only lower if the shift lever is in#PARK#, the terrain
switch is in#AUTO#, the transfer-case is in#AUTO” and
the vehicle level should be either in Normal or Aero
Mode. The Vehicle will not automatically lower if the air
suspension level is in Off Rd 2 or Off Rd 1. If the vehicle
is equipped with Intrusion Theft Module (ITM), the
lowering will be suppressed when the ignition is
switched Off and the Door is Open to prevent setting the
alarm Off.
The Selec-Terrain™ switch will automatically change the
vehicle to the proper height based on the position of the
Selec-Terrain™ switch. The height can be changed from
the default Selec-Terrain™ setting by normal use of the
air suspension buttons. Refer to “Selec-Terrain™” in
“Starting and Operating” for further information.
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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. If a door is opened
at any time while the vehicle is lowering the change will
not be completed until the open door(s) is closed.
The Quadra-Lift™ air suspension system uses a lifting
and lowering pattern which keeps the headlights from
incorrectly 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, it may be noticed that the
air suspension system operates briefly, this is normal. The
system is correcting the position of the vehicle to ensure
a proper appearance.
To assist with changing a spare tire, the Quadra-Lift™ air
suspension system has a feature which allows the auto-
matic leveling to be disabled. Refer to “Uconnect® Set-
tings” in “Understanding Your Instrument Panel” for
further information.
NOTE:If equipped with a touch screen radio all
enabling/disabling of air suspension features must be
done through the radio. Refer to “Uconnect® Access
Settings” in “Understanding Your Instrument Panel” for
further information.
WARNING!
The air suspension system uses a high pressure
volume of air to operate the system. To avoid per-
sonal injury or damage to the system, see your
authorized dealer for service.
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Air Suspension Modes
The Air Suspension system has multiple modes to protect
the system in unique situations:
Tire/Jack Mode
To assist with changing a spare tire, the air suspension
system has a feature which allows the automatic leveling
to be disabled. Refer to “Uconnect® Settings” in “Under-
standing Your Instrument Panel” for further information.
NOTE:This mode is intended to be enabled with engine
running.
Transport Mode
To assist with flat bed towing, the air suspension system
has a feature which will put the vehicle into Entry/Exit
height and disable the automatic load leveling system.
Refer to “Uconnect® Settings” in “Understanding Your
Instrument Panel” for further information.
NOTE:This mode is intended to be enabled with engine
running.
Wheel Alignment Mode
Before performing a wheel alignment this mode must be
enabled. Refer to “Uconnect® Settings” in “Understand-
ing Your Instrument Panel” for further information.
NOTE:This mode is intended to be enabled with engine
running.
If equipped with a touch screen radio all enabling/
disabling of air suspension features must be done
through the radio. Refer to “Uconnect® Settings” in
“Understanding Your Instrument Panel” for further in-
formation.
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