2023 JEEP CHEROKEE check engine

GETTING TO KNOW YOUR INSTRUMENT PANEL71
Electronic Stability Control (ESC) Active
Warning Light — If Equipped
This warning light will indicate when the
Electronic Stability Control system is Active.
The ESC Indicator Light in the instrument
cluster will come on when the ignition is placed
in the ON/RUN or ACC/ON/RUN position, and when ESC is
activated. It should go out with the engine running. If the
ESC Indicator Light comes on continuously with the engine
running, a malfunction has been detected in the ESC
system. If this warning light remains on after several
ignition cycles, and the vehicle has been driven several
miles (kilometers) at speeds greater than 30 mph
(48 km/h), see an authorized dealer as soon as possible
to have the problem diagnosed and corrected.
 The ESC OFF Indicator Light and the ESC Indicator Light
come on momentarily each time the ignition is placed
in the ON/RUN or ACC/ON/RUN position.
 The ESC system will make buzzing or clicking sounds
when it is active. This is normal; the sounds will stop
when ESC becomes inactive.
 This light will come on when the vehicle is in an ESC
event.
Electronic Stability Control (ESC) OFF
Warning Light — If Equipped
This warning light indicates the ESC is off.
Each time the ignition is turned to ON/RUN or
ACC/ON/RUN, the ESC system will be on, even
if it was turned off previously.
Low Fuel Warning Light
When the fuel level reaches approximately
2 gal (7.5 L) this light will turn on, and remain
on until fuel is added. A single warning chime
will sound with Low Fuel Warning.
Low Washer Fluid Warning Light —
If Equipped
This warning light will illuminate when the
windshield washer fluid is low Úpage 212.
Service LaneSense Warning Light —
If Equipped
This warning light will illuminate when the
LaneSense system is not operating and
requires service. Please see an authorized
dealer.
LaneSense Warning Light — If Equipped
The LaneSense Warning Light will be solid
yellow when the vehicle is approaching a lane
marker. The warning light will flash when the
vehicle is crossing the lane marker
Úpage 109.
Engine Check/Malfunction Indicator (MIL)
Warning Light
The Engine Check/Malfunction Indicator Light
(MIL) is a part of an Onboard Diagnostic System
called OBD II that monitors engine and
automatic transmission control systems. This
warning light will illuminate when the ignition is in the ON/RUN position before engine start. If the bulb does not
come on when turning the ignition switch from OFF to ON/
RUN, have the condition checked promptly.
Certain conditions, such as a loose or missing gas cap,
poor quality fuel, etc., may illuminate the light after engine
start. The vehicle should be serviced if the light stays on
through several typical driving styles. In most situations,
the vehicle will drive normally and will not require towing.
When the engine is running, the MIL may flash to alert
serious conditions that could lead to immediate loss of
power or severe catalytic converter damage. The vehicle
should be serviced by an authorized dealer as soon as
possible if this occurs.
WARNING!
A malfunctioning catalytic converter 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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GETTING TO KNOW YOUR INSTRUMENT PANEL73
YELLOW INDICATOR LIGHTS
Active Speed Limiter Fault Indicator
Light — If Equipped
This light will illuminate to signal when there is
a fault detected with the Active Speed Limiter.
Forward Collision Warning (FCW) Off
Indicator Light — If Equipped
This light indicates that Forward Collision
Warning is off Úpage 154.
4WD Low Indicator Light — If Equipped
This light alerts the driver that the vehicle is in
the 4WD 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
Úpage 85.
Rear Axle Lock Indicator Light
This light indicates when the rear axle lock has
been activated.
Wait To Start Indicator Light — If Equipped
This indicator light will illuminate for
approximately two seconds when the ignition is
turned to the RUN position. Its duration may be
longer based on colder operating conditions.
Vehicle will not initiate start until telltale is no longer
displayed.
NOTE:The Wait To Start telltale may not illuminate if the intake
manifold temperature is warm enough.
Water In Fuel Indicator Light — If Equipped
The Water In Fuel Indicator Light will illuminate
when there is water detected in the fuel filter. If
this light remains on, DO NOT start the vehicle
before you drain the water from the fuel filter to
prevent engine damage, and please see an authorized
dealer.
GREEN INDICATOR LIGHTS
Active Speed Limiter SET Indicator Light
This light will turn on when the Active Speed
Limiter is on and set to a specific speed.
Adaptive Cruise Control (ACC) Set With
Target Vehicle Indicator Light —
If Equipped
This will display when the ACC is set and a
vehicle in front is detected Úpage 92.
CAUTION!
The TPMS has been optimized for the original equip -
ment 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. After -
market wheels can cause sensor damage. Using after -
market tire sealants may cause the Tire Pressure
Monitoring System (TPMS) sensor to become inopera -
ble. After using an aftermarket tire sealant it is recom -
mended that you take your vehicle to an authorized
dealer to have your sensor function checked.
CAUTION!
The presence of water in the fuel system circuit may
cause severe damage to the injection system and
irregular engine operation. If the indicator light is
illuminated, contact an authorized dealer as soon as
possible to bleed the system. If the previously
mentioned indications come on immediately after
refuelling, water has probably been poured into the
tank: switch the engine off immediately and contact an
authorized dealer.
3

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GETTING TO KNOW YOUR INSTRUMENT PANEL75
(Continued)
Cruise Control Ready Indicator Light
This light will turn on when the Cruise Control
has been turned on, but not set Úpage 90.
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 multifunction
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 government regulations.
If any of these systems require service, the OBD II system
will turn on the Malfunction Indicator Light (MIL). It will
also store diagnostic codes and other information to
assist your service technician in making repairs. Although
your vehicle will usually be drivable and not need towing,
see an authorized dealer for service as soon as possible.
ONBOARD DIAGNOSTIC SYSTEM
(OBD II) C
YBERSECURITY
Your vehicle is required to have an OBD II and a
connection port to allow access to information related to
the performance of your emissions controls. Authorized
service technicians may need to access this information to
assist with the diagnosis and service of your vehicle and
emissions system
Úpage 126.
EMISSIONS INSPECTION AND
MAINTENANCE PROGRAMS
In some localities, it may be a legal requirement to pass an
inspection of your vehicle's emissions control system.
Failure to pass could prevent vehicle registration.
For states that require an Inspection and
Maintenance (I/M), this check verifies the
Malfunction Indicator Light is functioning and is
not on when the engine is running, and that the
OBD II system is ready for testing.
The OBD ll system may not be ready if your vehicle was
recently serviced, recently had a depleted battery or a
battery replacement. If the OBD ll system should be
determined not ready for the I/M test, your vehicle may fail
the test.
CAUTION!
 Prolonged driving with the MIL on could cause further
damage to the emission control system. It could also
affect fuel economy and driveability. The vehicle
must be serviced before any emissions tests can be
performed.
 If the MIL is flashing while the vehicle is running,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
WARNING!
ONLY an authorized service technician should
connect equipment to the OBD II connection port in
order to read the VIN, diagnose, or service your
vehicle.
 If unauthorized equipment is connected to the OBD II
connection port, such as a driver-behavior tracking
device, it may:
 Be possible that vehicle systems, including
safety related systems, could be impaired or a
loss of vehicle control could occur that may
result in an accident involving serious injury or
death.
 Access, or allow others to access, information
stored in your vehicle systems, including
personal information.
WARNING!
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76GETTING TO KNOW YOUR INSTRUMENT PANEL
Your vehicle has a simple ignition actuated test, which you
can use prior to going to the test station. To check if your
vehicle's OBD II system is ready, you must do the following:

1. Cycle the ignition switch to the ON position, but do
not crank or start the engine.

NOTE:If you crank or start the engine, you will have to start this
test over.
2. As soon as you cycle the ignition switch to the ON position, you will see the Malfunction Indicator Light
symbol come on as part of a normal bulb check. 3. Approximately 15 seconds later, one of two things will
happen:
 The MIL will flash for about 10 seconds and then
return to being fully illuminated until you turn OFF
the ignition or start the engine. This means that
your vehicle's OBD II system is not ready and you
should not proceed to the I/M station.
 The MIL will not flash at all and will remain fully illu -
minated until you place the ignition in the off posi -
tion or start the engine. This means that your
vehicle's OBD II system is ready and you can
proceed to the I/M station. If your OBD II system is
not ready, you should see an
authorized dealer or repair facility. If your vehicle was
recently serviced or had a battery failure or replacement,
you may need to do nothing more than drive your vehicle
as you normally would in order for your OBD II system to
update. A recheck with the previously mentioned test
routine may then indicate that the system is now ready.

23_KL_OM_EN_USC_t.book Page 76

STARTING AND OPERATING81
(Continued)
AUTOMATIC TRANSMISSION
You must press and hold the brake pedal while shifting out
of PARK.
KEY IGNITION PARK INTERLOCK
This vehicle is equipped with a Key Ignition Park Interlock
which requires the transmission to be in PARK before the
ignition can be turned to the OFF (key removal) position.
The key fob can only be removed from the ignition when
the ignition is in the OFF position, and the transmission is
locked in PARK whenever the ignition is in the OFF
position.
BRAKE/TRANSMISSION SHIFT
I
NTERLOCK (BTSI) SYSTEM
This vehicle is equipped with a BTSI system that holds the
transmission gear selector in PARK unless the brakes are
applied. To shift the transmission out of PARK, the ignition
must be in the ON/RUN position (engine running or not)
and the brake pedal must be pressed.
The brake pedal must also be pressed to shift from
NEUTRAL into DRIVE or REVERSE when the vehicle is
stopped or moving at low speeds.
9-SPEED AUTOMATIC TRANSMISSION
The transmission gear range (PRND) is displayed both
beside the gear selector and in the instrument cluster. To
select a gear range, push the lock button on the gear
selector and move the selector rearward or forward. You
must also press the brake pedal to shift the transmission
out of PARK (or NEUTRAL, when the vehicle is stopped or
moving at low speeds). Select the DRIVE range for normal
driving.
WARNING!
 It is dangerous to shift out of PARK (P) or NEUTRAL
(N) if the engine speed is higher than idle speed. If
your foot is not firmly pressing the brake pedal, the
vehicle could accelerate quickly forward or in
reverse. You could lose control of the vehicle and hit
someone or something. Only shift into gear when the
engine is idling normally and your foot is firmly
pressing the brake pedal.
 Unintended movement of a vehicle could injure
those in or near the vehicle. As with all vehicles, you
should never exit a vehicle while the engine is
running. Before exiting a vehicle, always come to a
complete stop, then apply the parking brake, shift
the transmission into PARK, turn the engine OFF, and
remove the key fob. When the ignition is in the OFF
(key removal) position, (or, with Keyless
Enter ‘n Go™, when the ignition is in the OFF position)
the transmission is locked in PARK, securing the
vehicle against unwanted movement.
 When leaving the vehicle, always make sure the igni -
tion is in the OFF position, remove the key fob from
the vehicle, and lock the vehicle.
 Never use the PARK position as a substitute for the
parking brake. Always apply the parking brake fully
when exiting the vehicle to guard against vehicle
movement and possible injury or damage.
Your vehicle could move and injure you and others if
it is not in PARK. Check by trying to move the gear
selector out of PARK with the brake pedal released.
Make sure the transmission is in PARK before exiting
the vehicle.
 Never leave children alone in a vehicle, or with
access to an unlocked vehicle. Allowing children to
be in a vehicle unattended is dangerous for a
number of reasons. A child or others could be seri -
ously or fatally injured. Children should be warned
not to touch the parking brake, brake pedal or the
transmission gear selector.
 Do not leave the key fob in or near the vehicle (or in
a location accessible to children), and do not leave
the ignition (in a vehicle equipped with Keyless
Enter ‘n Go™) in the ACC or ON/RUN position. A child
could operate power windows, other controls, or
move the vehicle.
CAUTION!
Damage to the transmission may occur if the following
precautions are not observed:
Shift into or out of PARK or REVERSE only after the
vehicle has come to a complete stop.
 Do not shift between PARK, REVERSE, NEUTRAL, or
DRIVE when the engine is above idle speed.
 Before shifting into any gear, make sure your foot is
firmly pressing the brake pedal.
WARNING!
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82STARTING AND OPERATING
(Continued)
NOTE:
The transmission electronics are self-calibrating; there -
fore, the first few shifts on a new vehicle may be some -
what abrupt. This is a normal condition, and precision
shifts will develop within a few hundred miles (kilome -
ters).
 In the event of a mismatch between the gear selector
position and the actual transmission gear (for example,
driver selects REVERSE while driving forward), the posi -
tion indicator will blink continuously until the selector is
returned to the proper position, or the requested shift
can be completed.
The electronically controlled transmission adapts its shift
schedule based on driver inputs, along with environmental
and road conditions.
The 9-speed transmission has been developed to meet
the needs of current and future FWD/AWD vehicles.
Software and calibration is refined to optimize the
customer’s driving experience and fuel economy. By
design, some vehicle and driveline combinations utilize
NINTH gear only in very specific driving situations and
conditions.
Only shift from DRIVE to PARK or REVERSE when the
accelerator pedal is released and the vehicle is stopped.
Be sure to keep your foot on the brake pedal when shifting
between these gears.
The transmission gear selector provides PARK, REVERSE,
NEUTRAL, DRIVE, and MANUAL (AutoStick) shift positions.
Manual shifts can be made using the AutoStick shift
control. Moving the gear selector into the MANUAL (-/+)
position (beside the DRIVE position) activates AutoStick
mode, providing manual shift control and displaying the
current gear in the instrument cluster (as 1, 2, 3, etc.). Toggling the gear selector forward (-) or rearward (+) while
in the MANUAL position will manually select the
transmission gear Úpage 84.
NOTE:If the gear selector cannot be moved to the PARK,
REVERSE, or NEUTRAL position (when pushed forward), it
is probably in the MANUAL (AutoStick [+/-]) position
(beside the DRIVE position). In MANUAL (AutoStick) mode,
the transmission gear (1, 2, 3, etc.) is displayed in the
instrument cluster. Move the gear selector to the right
(into the DRIVE [D] position) for access to PARK, REVERSE,
and NEUTRAL.

Gear Selector

GEAR RANGES
Do not press the accelerator pedal when shifting out of
PARK or NEUTRAL.
NOTE:After selecting any gear range, wait a moment to allow the
selected gear to engage before accelerating. This is espe
-
cially important when the engine is cold.
PARK (P)
This range supplements the parking brake by locking the
transmission. The engine can be started in this range.
Never attempt to use PARK while the vehicle is in motion.
Apply the parking brake when exiting the vehicle in this
range.
When parking on a hill, apply the parking brake before
shifting the transmission to PARK, otherwise the load on
the transmission locking mechanism may make it difficult
to move the gear selector out of PARK. As an added
precaution, turn the front wheels toward the curb on a
downhill grade and away from the curb on an uphill grade.
When exiting the vehicle, always:
 Apply the parking brake.
 Shift the transmission into PARK.
 Turn the engine off.
 Remove the key fob.
WARNING!
Never use the PARK position as a substitute for the
parking brake. Always apply the parking brake fully
when exiting the vehicle to guard against vehicle
movement and possible injury or damage.
 Your vehicle could move and injure you and others if
it is not in PARK. Check by trying to move the gear
selector out of PARK with the brake pedal released.
Make sure the transmission is in PARK before exiting
the vehicle.

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STARTING AND OPERATING89
NOTE:
Even if the power steering assistance is no longer oper -
ational, it is still possible to steer the vehicle. Under
these conditions there will be a substantial increase in
steering effort, especially at low speeds and during
parking maneuvers.
 If the condition persists, see an authorized dealer for
service.
STOP/START SYSTEM
The Stop/Start system was designed to reduce fuel
consumption. The system will stop the engine
automatically during a vehicle stop if the required
conditions are met. Releasing the brake pedal or pressing
the accelerator pedal will automatically restart the engine.
This vehicle has been upgraded with a heavy-duty battery,
starter, as well as other engine parts, to handle the
additional engine starts.
AUTOSTOP MODE
The Stop/Start feature is enabled after every normal
customer engine start. At that time, the system will go into
STOP/START READY.
To Activate The Autostop Mode, The Following Must Occur:
The system must be in STOP/START READY state. A
“STOP/START READY” message will be displayed in the
instrument cluster display within the Stop/Start
section
Úpage 63.
 The vehicle must be completely stopped.
 The gear selector must be in a forward gear and the
brake pedal pressed. The engine will shut down, the tachometer will move to the
zero position, and the Stop/Start indicator light will
illuminate indicating you are in Autostop. Customer
settings will be maintained upon return to an
engine-running condition.
POSSIBLE REASONS THE ENGINE DOES
N
OT AUTOSTOP
Prior to engine shut down, the system will check many
safety and comfort conditions to see if they are fulfilled.
Detailed information about the operation of the Stop/Start
system may be viewed in the instrument cluster display
Stop/Start Screen. In the following situations, the engine
will not stop:
 Driver’s seat belt is not buckled
 Driver’s door is not closed
 Battery temperature is too warm or cold
 Battery charge is low
 The vehicle is on a steep grade
 Cabin heating or cooling is in process and an accept -
able cabin temperature has not been achieved
 HVAC is set to full defrost mode at a high blower speed
 HVAC is set to MAX A/C
 Engine has not reached normal operating temperature
 The transmission is not in a forward or reverse gear
 Hood is open
 Brake pedal is not pressed with sufficient pressure with
vehicle in DRIVE (D) position
 Accelerator pedal input 
Engine temperature is too high
 5 mph (8 km/h) threshold has not been achieved from
previous Autostop
 Steering angle is beyond threshold
It may be possible for the vehicle to be driven several
times without the Stop/Start system going into a STOP/
START READY state under more extreme conditions of the
items listed previously.TO START THE ENGINE WHILE IN
A
UTOSTOP MODE
While in a forward gear, the engine will start when the
brake pedal is released or the accelerator pedal is
pressed. The transmission will automatically re-engage
upon engine restart.
Conditions That Will Cause The Engine To Start
Automatically While In Autostop Mode:
 The transmission gear selector is moved out of DRIVE,
except in the PARK position
 To maintain cabin temperature comfort
 HVAC is set to full defrost mode
 HVAC system temperature or fan speed is manually
adjusted
 Battery voltage drops too low
 Stop/Start OFF switch is pushed
 A Stop/Start system error occurs
 Steering wheel is turned beyond threshold
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90STARTING AND OPERATING
Conditions That Force An Application Of The Electric Park
Brake While In Autostop Mode:
 The driver’s door is open and brake pedal released
 The driver’s door is open and the driver’s seat belt is
unbuckled
 The engine hood has been opened
 A Stop/Start system error occurs
If the Electric Park Brake (EPB) is applied with the engine
off, the engine may require a manual restart and the EPB
may require a manual release (press brake pedal and
push EPB switch).
TO MANUALLY TURN OFF THE STOP/
S
TART SYSTEM

Stop/Start OFF Switch

Push the Stop/Start OFF switch (located on the switch
bank). The light on the switch will illuminate. The “STOP/
START OFF” message will appear in the instrument cluster
display and the Autostop mode will be disabled
Úpage 63.
NOTE:The Stop/Start system will reset itself back to the ON
mode every time the ignition is turned OFF and back ON.
TO MANUALLY TURN ON THE STOP/
S
TART SYSTEM
Push the Stop/Start OFF switch (located on the switch
bank). The light on the switch will turn off.
SYSTEM MALFUNCTION
If there is a malfunction in the Stop/Start system, the
system will not shut down the engine. A “SERVICE STOP/
START SYSTEM” message and a yellow Stop/Start telltale
will appear in the instrument cluster display
Úpage 68.
If the “SERVICE STOP/START SYSTEM” message appears
in the instrument cluster display, have the system
checked by an authorized dealer.
CRUISE CONTROL SYSTEMS — IF EQUIPPED
Your vehicle may be equipped with the Cruise Control
system, or the Adaptive Cruise Control (ACC) system:
 Cruise Control will keep your vehicle at a constant
preset speed.
 Adaptive Cruise Control (ACC) will adjust the vehicle
speed up to the preset speed to maintain a distance
with the vehicle ahead.
NOTE:
In vehicles equipped with ACC, if ACC is not enabled,
Fixed Speed Cruise Control will not detect vehicles
directly ahead of you. Always be aware of the feature
selected. 
Only one Cruise Control feature can operate at a time.
For example, if Fixed Speed Cruise Control is enabled,
Adaptive Cruise Control will be unavailable, and vice
versa.
CRUISE CONTROL
When engaged, the Cruise Control takes over accelerator
operations at speeds greater than 20 mph (32 km/h).
The Cruise Control buttons are located on the right side of
the steering wheel.

Cruise Control Buttons

1 — On/Off
2 — CANC/Cancel
3 — SET (+)/Accel
4 — RES/Resume
5 — SET (-)/Decel

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