2020 JEEP CHEROKEE 4WD

69
converter damage. The vehicle should be
serviced by an authorized dealer as soon as
possible if this occurs. — AdBlue® (UREA) Injection System
Failure Warning Light — If Equipped
This warning light will illuminate along with
a dedicated message on the display (If
Equipped) if an unknown fluid not
conforming with acceptable characteristics
is inserted, or if an average consumption of
AdBlue® (UREA) over 50% is detected.
Contact an authorized dealer as soon as
possible.
If the problem is not solved, a specific
message will appear on the Instrument
Cluster Display whenever a certain threshold
is reached until it will no longer be possible
to start the engine.
When about 125 mi (200 km) are remaining
before the AdBlue® tank is empty, a contin -
uous dedicated message will appear on the
instrument panel, accompanied by a buzzer
sound (If Equipped).
— Service 4WD Warning Light — If
Equipped
This warning light will illuminate to signal a
fault with the 4WD system. If the light stays
on or comes on during driving, it means that the 4WD system is not functioning properly
and that service is required. Contact an
authorized dealer for service.
— Service Forward Collision Warning
(FCW) Light — If Equipped
This warning light will illuminate to indicate
a fault in the Forward Collision Warning
System. Contact a local authorized dealer for
service. Refer to “Forward Collision Warning
(FCW) With Mitigation - If Equipped” in
“Safety” for further information.
— Service Stop/Start System Warning
Light
This warning light will illuminate to indicate
the Stop/Start system is not functioning
properly and service is required. Contact an
authorized dealer for service.
— Speed Control Fault Warning Light
This warning light will illuminate to indicate
the Speed Control System is not functioning
properly and service is required. Contact an
authorized dealer.
WARNING!
A malfunctioning catalytic converter, as
referenced above, can reach higher
temperatures than in normal operating
conditions. This can cause a fire if you
drive slowly or park over flammable
substances such as dry plants, wood,
cardboard, etc. This could result in death
or serious injury to the driver, occupants or
others.
CAUTION!
Prolonged driving with the Malfunction
Indicator Light (MIL) on could cause
damage to the vehicle control system. It
also could affect fuel economy and
driveability. If the MIL is flashing, severe
catalytic converter damage and power loss
will soon occur. Immediate service is
required.
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71
The system only warns the tire pressure is
low: it is not able to inflate them.
Yellow Indicator Lights — Active Speed Limiter Fault Indicator
Light — If Equipped
This warning light will illuminate to signal
when there is a fault detected with the Active
Speed Limiter.
— Forward Collision Warning Off
Indicator Light — If Equipped
This light indicates that Forward Collision
Warning is off.
— 4WD Low Indicator Light — If
Equipped
This light alerts the driver that the vehicle is
in the four-wheel drive LOW mode. The front
and rear driveshafts are mechanically locked
together forcing the front and rear wheels to
rotate at the same speed. Low range provides
a greater gear reduction ratio to provide
increased torque at the wheels.
Refer to “Four-Wheel Drive Operation” in
“Starting And Operating” for further informa -
tion on four-wheel drive operation and proper
use.
— Rear Axle Lock Indicator Light
This light indicates when the rear axle lock
has been activated.
— Rear Fog Indicator — If Equipped
This indicator light will illuminate when the
rear fog lights are on.
— Glow Plug Light — If Equipped
This vehicle will inhibit engine cranking
when the ambient temperature is less than
–22° F (–30° C) and the oil temperature
sensor reading indicates an engine block
heater has not been used. The Glow Plug
light will flash during in cold weather for up
to ten seconds.
If equipped with a block heater harness the
message “Plug In Engine Heater”, will be
displayed in the instrument cluster when the
ambient temperature is below 5°F (-15° C) at
the time the engine is shut off as a reminder
to avoid possible crank delays at the next
cold start.
CAUTION!
The TPMS has been optimized for the
original equipment tires and wheels.
TPMS pressures and warning have been
established for the tire size equipped on
your vehicle. Undesirable system operation
or sensor damage may result when using
replacement equipment that is not of the
same size, type, and/or style. Aftermarket
wheels can cause sensor damage. Using
aftermarket tire sealants may cause the
Tire Pressure Monitoring System (TPMS)
sensor to become inoperable. After using
an aftermarket tire sealant it is
recommended that you take your vehicle to
an authorized dealer to have your sensor
function checked.
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73
Refer to “LaneSense — If Equipped” in
“Starting And Operating” for further informa-
tion.
— Park/Headlight On Indicator Light
This indicator light will illuminate when the
park lights or headlights are turned on.
— Stop/Start Active Indicator Light
This telltale will illuminate when the Stop/
Start function is in Autostop mode.
— Turn Signal Indicator Lights
When the left or right turn signal is activated,
the turn signal indicator will flash inde -
pendently and the corresponding exterior
turn signal lamps will flash. Turn signals can
be activated when the multifunction lever is
moved down (left) or up (right).
NOTE:
A continuous chime will sound if the
vehicle is driven more than 1 mile
(1.6 km) with either turn signal on.
Check for an inoperative outside light bulb
if either indicator flashes at a rapid rate.
White Indicator Lights
— Active Speed Limiter Ready Indicator
Light — If Equipped
This light will turn on when the Active Speed
Limiter is on, but not set.
/ — Adaptive Cruise Control (ACC)
Ready Light — If Equipped

This light will turn on when Adaptive Cruise
Control (ACC) has been turned on, but is not set.
Refer to “Adaptive Cruise Control” in “Starting
And Operating” for further information.

— Adaptive Cruise Control (ACC) Set
Light — If Equipped
This light will turn on when the vehicle
equipped with Adaptive Cruise Control (ACC)
has reached the speed desired and the set
button has been selected. Refer to “Adaptive
Cruise Control” in “Starting And Operating”
for further information.
— Hill Descent Control (HDC) Indicator
Light — If Equipped
This indicator shows when the Hill Descent
Control (HDC) feature is turned on. The lamp
will be on solid when HDC is armed. HDC can
only be armed when the transfer case is in
the 4WD LOW position and the vehicle speed
is less then 30 mph (48 km/h). If these
conditions are not met while attempting to
use the HDC feature, the HDC indicator light
will flash on/off.
— LaneSense Indicator Light — If
Equipped
When the LaneSense system is ON, but not
armed, the LaneSense indicator light illumi -
nates solid white. This occurs when only left,
right, or neither lane line has been detected.
If a single lane line is detected, the system is
ready to provide only visual warnings if an
unintentional lane departure occurs on the
detected lane line.
Refer to “LaneSense — If Equipped” in
“Starting And Operating” for further informa -
tion.
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GETTING TO KNOW YOUR INSTRUMENT PANEL
74
— Speed Warning Indicator Light
The white indicator will illuminate along with
a text message (Speed Warning Set to XX
followed by unit), once the feature is
enabled. When the set speed is exceeded, a
continuous chime (up to 10 seconds or until
the speed is no longer exceeded) will sound
along with a Speed Warning Exceeded pop
up message and the indicator light will turn
yellow and flash.
NOTE:
The number “31” is only an example of a
speed that can be selected.
— Selec Speed Control Indicator Light —
If Equipped
This light will turn on when “Selec Speed
Control” is activated.
To activate “Selec Speed Control”, assure
the vehicle is Four Wheel Drive Low (4WD)
and push the button on the Instrument
Panel.
NOTE:
If the vehicle is not in 4WD Low, “To Enter
Selec-Speed Shift to 4WD Low” will appear
in the instrument cluster display.
— Cruise Control Ready Indicator Light
This light will turn on when the Speed
Control has been turned on, but not set.
Refer to “Speed Control — If Equipped” in
“Starting And Operating” for further informa -
tion.
Blue Indicator Lights
— High Beam Indicator Light
This indicator light will illuminate to indicate
that the high beam headlights are on. With
the low beams activated, push the multi -
function lever forward (toward the front of
the vehicle) to turn on the high beams. Pull
the multifunction lever rearward (toward the
rear of the vehicle) to turn off the high
beams. If the high beams are off, pull the
lever toward you for a temporary high beam
on, “flash to pass” scenario.
ONBOARD DIAGNOSTIC
SYSTEM — OBD II
Your vehicle is equipped with a sophisticated
Onboard Diagnostic system called OBD II.
This system monitors the performance of the
emissions, engine, and transmission control
systems. When these systems are operating
properly, your vehicle will provide excellent
performance and fuel economy, as well as
engine emissions well within current govern -
ment regulations.
If any of these systems require service, the
OBD II system will turn on the Malfunction
Indicator Light (MIL). It will also store diag -
nostic codes and other information to assist
your service technician in making repairs.
Although your vehicle will usually be drive -
able and not need towing, see an authorized
dealer for service as soon as possible.
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150
FOUR-WHEEL DRIVE
OPERATION
1-Speed Four-Wheel Drive (4X4) — If
Equipped
This feature provides on-demand four-wheel
drive (4X4). The system is automatic with no
driver inputs or additional driving skills
required. Under normal driving conditions,
the front wheels provide most of the traction.
If the front wheels begin to lose traction,
power is shifted automatically to the rear
wheels. The greater the front wheel traction
loss, the greater the power transfer to the
rear wheels.1-Speed 4X4 Switch Additionally, on dry pavement under heavy
throttle input (where one may have no wheel
spin), torque will be sent to the rear in a
pre-emptive effort to improve vehicle launch
and performance characteristics.
2-Speed Four-Wheel Drive (4x4) — If
Equipped
2-Speed 4x4 Switch
2-Speed 4x4 Switch (With Rear Lock)
The Four-Wheel Drive is fully automatic in
the normal driving mode. The Selec-Terrain
buttons provide three selectable mode posi -
tions:
4WD LOW
REAR LOCK (If Equipped)
NEUTRAL
When additional traction is required, the
4WD LOW range position can be used to
provide an additional gear reduction which
allows for increased torque to be delivered to
both the front and rear wheels. 4WD LOW is
intended for loose, slippery road surfaces
only. Driving in 4WD LOW on dry,
hard-surfaced roads may cause increased
tire wear and damage to driveline
components.
CAUTION!
All wheels must have the same size and
type tires. Unequal tire sizes must not be
used. Unequal tire size may cause failure
of the power transfer unit.
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151
When operating your vehicle in 4WD LOW,
the engine speed is approximately three
times that of the normal driving mode at a
given road speed. Take care not to overspeed
the engine and do not exceed 50 mph
(80 km/h).
Proper operation of four-wheel drive vehicles
depends on tires of equal size, type, and
circumference on each wheel. Any difference
will adversely affect shifting and cause
damage to the driveline components.
Because four-wheel drive provides improved
traction, there is a tendency to exceed safe
turning and stopping speeds. Do not go
faster than road conditions permit.
Shift Positions
For additional information on the appropriate
use of each 4WD system mode position, see
the information below:
NEUTRAL (N)
This range disengages the driveline from the
powertrain.
4WD LOW
This range is for low speed four-wheel drive.
It provides an additional gear reduction
which allows for increased torque to be deliv-
ered to both the front and rear wheels while
providing maximum pulling power for loose,
slippery road surfaces only. Do not exceed
25 mph (40 km/h).
NOTE:
Refer to “Selec-Terrain — If Equipped” for
further information on the various positions
and their intended usages.
Shifting Procedures
Shifting Into 4X4 LOW
With the vehicle at speeds of 0 to 3 mph (0
to 5 km/h), the ignition in the ON mode and
the engine running, shift the transmission
into NEUTRAL, and push the “4WD LOW”
button once. The “4WD LOW” indicator light
in the instrument cluster will begin to flash
and remain on solid when the shift is
complete.
2-Speed 4x4 Switch (With Rear Lock)
NOTE:
If shift conditions/interlocks are not met, a
message will flash from the instrument
cluster display with instructions on how to
complete the requested shift.
WARNING!
You or others could be injured or killed if
you leave the vehicle unattended with the
power transfer unit in the NEUTRAL (N)
position without first fully engaging the
parking brake. The NEUTRAL (N) position
disengages both the front and rear
driveshafts from the powertrain and will
allow the vehicle to roll, even if the
automatic transmission is in PARK (P) (or
manual transmission is in gear). The
parking brake should always be applied
when the driver is not in the vehicle.
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152
Refer to “Instrument Cluster Display” in
“Getting To know Your Instrument Panel” for
further information.
Shifting Out Of 4X4 LOW
With the vehicle at speeds of 0 to 3 mph (0
to 5 km/h), the ignition in the ON mode and
the engine running, shift the transmission
into NEUTRAL, and push the “4WD LOW”
button once. The “4WD LOW” indicator light
in the instrument cluster will flash and go
out when the shift is complete.
NOTE:
If shift conditions/interlocks are not met, a
message will flash from the instrument
cluster display with instructions on how to
complete the requested shift. Refer to
“Instrument Cluster Display” in “Getting
To Know Your Instrument Panel” for
further information.
Shifting into or out of 4WD LOW is
possible with the vehicle completely
stopped; however, difficulty may occur
due to the mating clutch teeth not being
properly aligned. Several attempts may be
required for clutch teeth alignment and
shift completion to occur. The preferred
method is with the vehicle rolling 0 to3 mph (0 to 5 km/h). If the vehicle is
moving faster than 3 mph (5 km/h), the
4WD system will not allow the shift.
NEUTRAL Shift Procedure
For the neutral shift procedure refer to
“Recreational Towing” in chapter for further
information.
Rear Electronic Locker (E-Locker) System
— If Equipped
The Rear E-Locker System features a
mechanical locking rear differential to
provide better traction in the 4WD LOW posi
-
tion. The “REAR LOCK” button is on the
Selec-Terrain Knob.
Activating The Rear E-Locker
To activate the Rear E-Locker System, the
following conditions must be met:
1. The 4WD system must be in 4WD LOW.
2. The ignition in the ON mode and the engine running.
3. Vehicle speed must be below 15 mph (24 km/h).
4. To engage Rear E-Locker, push the REAR LOCK button once. NOTE:
When engaging Rear E-Locker, the indicator
lights in the instrument cluster and on the
REAR LOCK button will begin to flash. When
the shift is complete the REAR LOCK indi
-
cator lights will remain on.
Rear Lock Button
Deactivating The Rear E-Locker System
To deactivate the Rear E-Locker System, the
following conditions must be met:
1. Rear E-Locker must be engaged, and the REAR LOCK indicator light on.
2. The ignition in the ON mode and the engine running.
3. To disengage Rear E-Locker, push the REAR LOCK button once.
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153
NOTE:
It may also be necessary to drive slowly
steering back and forth to complete
engagement and disengagement of the
E-Locker.

When disengaging Rear E-Locker, the indi-
cator lights in the instrument cluster and on
the REAR LOCK button will begin to flash.
When the shift is complete the REAR LOCK
indicator lights will remain off.

Shifting into or out of Rear E-Locker is
possible with the vehicle completely
stopped; however, difficulty may occur
due to the mating clutch teeth not being
properly aligned. Several attempts may be
required for clutch teeth alignment and
shift completion to occur. The preferred
method is for the vehicle to be rolling,
below 15 mph (24 km/h), while including
right and left steering maneuvers to allow
for the clutch teeth to align.
The Rear E-Locker System must be disen -
gaged prior to taking the vehicle out of
4WD LOW range. If 4WD LOW shift condi -
tions/interlocks are not met, a message
will flash from the instrument cluster
display with instructions on how to
complete the requested shift.
SELEC-TERRAIN
Description
Selec-Terrain allows the driver to specify the
driving surface to allow the vehicle systems
to provide the best performance possible
across a wide range of conditions
Rotate the Selec-Terrain knob to select the
desired mode.
Selec-Terrain Switch
Selec-Terrain offers the following modes:
AUTO — Fully automatic, full time
four-wheel drive operation can be used
both on and off road. Balances traction
with seamless steering feel to provide
improved handling and acceleration.
SNOW — Tuning set for additional stability
in inclement weather. Use when driving on
loose traction surfaces such as snow,
while either on or off road. When in SNOW
mode (depending on certain operating
conditions), the transmission may use
SECOND gear (rather than FIRST gear)
during launches, to minimize wheel slip -
page.
SPORT — This mode alters the transmis -
sion's automatic shift schedule for sportier
driving. Upshift speeds are increased to
make full use of available engine power.
NOTE:
SPORT mode is not available when 4WD
LOW is selected.
SAND/MUD — Off-road calibration for use
on low traction surfaces such as mud,
sand, or wet grass. The 4WD system
provides maximum capability to all
wheels. Some binding may be felt on high
traction surfaces. The electronic brake
system will be adjusted to reduce the
automatic braking of slipping wheels and
to allow the engine to operate without
restriction.
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