2017 JEEP GRAND CHEROKEE suspension

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 functions 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 the transfer case and
axle coupling differ in design, their operation is similar.
Follow the Quadra-Trac II transfer case shifting informa-
tion, preceding this section, for shifting this system.
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. The vehicle will
automatically raise and lower the ride height to adapt to
the appropriate driving conditions. At higher speeds, the
vehicle will lower to an aerodynamic ride height and when
operating in off-road modes, the vehicle will raise the ride
height accordingly. The buttons near the terrain switch in
the center console area can be used to set preferred ride
height to match the appropriate conditions.
NEUTRAL (N) Switch
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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 inches (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 “Driving
Tips” in “Starting And Operating” for further informa-
tion.
• Off-Road 2 (OR2) (Raises the vehicle approximately
2.2 inches (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 “Driving Tips” in “Starting And Operating” for
further information.
• Aero Mode (Lowers the vehicle approximately 0.6
inches (15 mm) – This position provides improved
aerodynamics by lowering the vehicle. The vehicle will
automatically enter Aero Mode when the vehicle speed
Selec-Terrain Switch
1 — UP Button
2 — DOWN Button
3 — Entry/Exit Mode Indicator Lamp (Customer Selectable)
4 — Normal Ride Height Indicator Lamp (Customer Selectable)
5 — Off-Road 1 Indicator Lamp (Customer Selectable)
6 — Off-Road 2 Indicator Lamp (Customer Selectable)
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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 speed falls
below 20 mph (32 km/h). The vehicle will enter Aero
Mode, regardless of vehicle speed if the vehicle is in
“SPORT” mode.
• Entry/Exit Mode (Lowers the vehicle approximately 1.6
inces (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 cancelled. 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 gear selector 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 sup-
pressed 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.
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.
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The Quadra-Lift air suspension system uses a lifting and
lowering pattern which keeps the headlights from incor-
rectly 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 Settings”
in “Multimedia” 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 Settings” in “Multimedia” for
further information.
WARNING!
The air suspension system uses a high pressure vol-
ume of air to operate the system. To avoid personal
(Continued)
WARNING! (Continued)
injury or damage to the system, see your authorized
dealer for service.
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 “Multimedia”
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 “Multimedia” for further
information.
NOTE: This mode is intended to be enabled with engine
running.
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Wheel Alignment Mode
Before performing a wheel alignment this mode must be
enabled. Refer to “Uconnect Settings” in “Multimedia” 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 “Multimedia” for
further information.
Instrument Cluster Display Messages
When the appropriate conditions exist, a message will
appear in the instrument cluster. Refer to “Instrument
Cluster Display” in “Getting To Know Your Instrument
Panel” for further information.
Operation
The indicator lamps 3 through 6 will illuminate to show the
current position of the vehicle. Flashing indicator lamps
will show a position which the system is working to
achieve. When raising, if multiple indicator lamps are
flashing on the “Up” button, the highest flashing indicator
lamp is the position the system is working to achieve. When lowering, if multiple indicators are flashing on the
Up
button the lowest solid indicator lamp is the position
the system is working to achieve.
Pushing the “UP” button once will move the suspension
one position higher from the current position, assuming all
conditions are met (i.e. engine running, speed below
threshold, etc). The “UP” button can be pushed multiple
times, each push will raise the requested level by one
position up to a maximum position of OR2 or the highest
position allowed based on current conditions (i.e. vehicle
speed, etc).
Pushing the “DOWN” button once will move the suspen-
sion one position lower from the current level, assuming all
conditions are met (i.e. engine running, doors closed, speed
below threshold, etc). The “DOWN” button can be pressed
multiple times. Each push will lower the requested level by
one position down to a minimum of Park Mode or the
lowest position allowed based on current conditions (i.e.
vehicle speed, etc.)
Automatic height changes will occur based on vehicle
speed and the current vehicle height. The indicator lamps
and instrument cluster display messages will operate the
same for automatic changes and user requested changes.
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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 launches, to
minimize wheel slippage. If equipped with air suspen-
sion, the default ride height for Snow is Normal Ride
Height (NRH).
• Auto – Fully automatic full time four-wheel drive op-
eration can be used on and off road. Balances traction with seamless steering feel to provide improved han-
dling and acceleration over two-wheel drive vehicles. If
equipped with air suspension, the level will change to
Normal Ride Height (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 Normal Ride Height (NRH).
• Mud – Off road calibration for use on low traction
surfaces such as mud. Driveline is maximized for trac-
tion. Some binding may be felt on less forgiving sur-
faces. 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
Selec-Terrain Switch
294 STARTING AND OPERATING

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.
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.
Instrument Cluster Display Messages
When the appropriate conditions exist, a message will
appear in the instrument cluster. Refer to “Instrument
Cluster Display” in “Getting To Know Your Instrument
Panel” for further information.
FUEL SAVER TECHNOLOGY 5.7L ENGINE ONLY —
IF EQUIPPED
This feature offers improved fuel economy by shutting off
four of the engine’s eight cylinders during light load and
cruise conditions. The system is automatic with no driver
inputs or additional driving skills required.
NOTE: This system may take some time to return to full
functionality after a battery disconnect.
POWER STEERING
The electric power steering system will give you good
vehicle response and increased ease of maneuverability in
tight spaces. The system will vary its assist to provide light
efforts while parking and good feel while driving. If the
electric steering system experiences a fault that prevents it
from providing assist, you will still have the ability to steer
the vehicle manually.
Alternate electric power steering efforts can be selected
through the Uconnect System. Refer to ”Customer Pro-
grammable Features” within “Uconnect Settings” in “Mul-
timedia” for further information.
WARNING!
Continued operation with reduced assist could pose a
safety risk to yourself and others. Service should be
obtained as soon as possible.
If the Electric Power Steering warning icon is
displayed and the “SERVICE POWER STEER-
ING” or the “POWER STEERING ASSIST OFF –
SERVICE SYSTEM” message is displayed within
the instrument cluster display, this indicates the vehicle
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Adaptive Cruise Control (ACC) Operation
The Speed Control buttons (located on the right side of the
steering wheel) operates the ACC system.NOTE:
Any chassis/suspension or tire size modifications
to the vehicle will effect the performance of the Adaptive
Cruise Control and Forward Collision Warning System.
Activating Adaptive Cruise Control (ACC)
You can only engage ACC if the vehicle speed is above
0 mph (0 km/h).
The minimum set speed for the ACC system is 20 mph
(32 km/h).
When the system is turned on and in the ready state, the
instrument cluster displays “ACC Ready.”
When the system is off, the instrument cluster displays
“Adaptive Cruise Control (ACC) Off.”
NOTE: You cannot engage ACC under the following con-
ditions:
• When in Four-Wheel Drive Low.
• When you apply the brakes.
• When the parking brake is set.
• When the automatic transmission is in PARK, REVERSE
or NEUTRAL.
• When the vehicle speed is outside of the speed range.
Adaptive Cruise Control Buttons
1 — Normal (Fixed Speed)
Cruise Control On/Off 5 — Distance Setting Increase
2 — SET+/Accel 6 — Adaptive Cruise Control
(ACC) On/Off
3 — RES/Resume 7 — Distance Setting Decrease
4 — SET-/Decel 8 — CANC/Cancel
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