check engine light JEEP CHEROKEE 2015 KL / 5.G User Guide

If the light remains lit with the engine running, your
vehicle will usually be drivable. However, see an
authorized dealer for service as soon as possible. If
the light is flashing when the engine is running,
immediate service is required. You may experience
reduced performance, an elevated/rough idle or en-
gine stall and your vehicle may require towing.
•Oil Temperature Warning Light
This telltale indicates engine oil tempera-
ture is high. If the light turns on while
driving, stop the vehicle and shut off the
engine as soon as possible.
•Air Bag Warning Light
This light will turn on for four to eight
seconds as a bulb check when the ignition
switch is first turned to the ON/RUN po-
sition. If the light is either not on during
starting, stays on, or turns on while driving, have the
system inspected at an authorized dealer as soon as
possible. Refer to “Occupant Restraints” in “Things
To Know Before Starting Your Vehicle” for further
information.
Oil Change Reset
Oil Change Due
Your vehicle is equipped with an engine oil change
indicator system. The “Oil Change Due” message will
display in the DID for five seconds after a single chime
has sounded, to indicate the next scheduled oil change
interval. The engine oil change indicator system is duty
cycle based, which means the engine oil change interval
may fluctuate, dependent upon your personal driving
style.
Unless reset, this message will continue to display each
time you turn the ignition is cycled to the ON/RUN
position. To turn off the message temporarily, push and
374 UNDERSTANDING YOUR INSTRUMENT PANEL

•Engine Temperature Warning Light
This light warns of an overheated engine condi-
tion. As temperatures rise and the gauge ap-
proachesH,this indicator will illuminate and a single
chime will sound after reaching a set threshold. Further
overheating will cause the temperature gauge to passH,
a continuous chime will occur until the engine is allowed
to cool.
If the light turns on while driving, safely pull over and
stop the vehicle. If the A/C system is on, turn it off. Also,
shift the transmission into NEUTRAL and idle the ve-
hicle. If the temperature reading does not return to
normal, turn the engine off immediately and call for
service. Refer to “If Your Engine Overheats” in “What To
Do In Emergencies” for more information.
•Door Ajar
This light will turn on to indicate that one or
more doors may be ajar.
•Oil Pressure Warning Light
This telltale indicates low engine oil pressure. If
the light turns on while driving, stop the vehicle and shut
off the engine as soon as possible. A chime will sound
when this light turns on.
Do not operate the vehicle until the cause is corrected.
This light does not show how much oil is in the engine.
The engine oil level must be checked under the hood.
•Electronic Throttle Control (ETC) Light
This light informs you of a problem with the
Electronic Throttle Control (ETC) system. The
light will come on when the ignition is first
376 UNDERSTANDING YOUR INSTRUMENT PANEL

turned ON and remain on briefly as a bulb check. If the
light does not come on during starting, have the system
checked by an authorized dealer.
If a problem is detected, the light will come on while the
engine is running. Cycle the ignition key when the
vehicle has completely stopped and the shift lever is
placed in the PARK position. The light should turn off.
If the light remains lit with the engine running, your
vehicle will usually be drivable. However, see an autho-
rized dealer for service as soon as possible. If the light is
flashing when the engine is running, immediate service is
required. You may experience reduced performance, an
elevated/rough idle or engine stall and your vehicle may
require towing.
•Electric Power Steering Malfunction Warning Light
This telltale is on when the Electric Power
Steering is not operating and needs service.
•Air Bag Warning Light
This light will turn on for four to eight seconds
as a bulb check when the ignition switch is first
turned to ON/RUN. If the light is either not on
during starting, stays on, or turns on while
driving, have the system inspected at an authorized
dealer as soon as possible. Refer to “Occupant Restraints”
in “Things To Know Before Starting Your Vehicle” for
further information.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 377

& Locks, Auto-On Comfort, Engine Off Options, Audio,
Phone/Bluetooth®, SiriusXM Setup, Restore Settings,
Clear Personal Data, and System Information.
NOTE:Only one category may be selected at a time.
To adjust the setting of a programmable feature, press the
desired setting option. Once in the desired setting option,
press and release the preferred setting until a check-mark
appears next to the setting, showing that the setting has
been selected.
Once the setting is complete, press the Back Arrow
button on the touchscreen to return to the previous menu
or press the X button on the touchscreen to close out of
the settings screen. Pressing the Up or Down Arrow
button on the right side of the screen will allow you to
toggle up or down through the list of available settings.
Display
After pressing the “Display” button on the touchscreen
the following settings will be available.
•Display Mode
When in this display you may select one of the auto
display settings. To change Mode status, select from
“Day,” “Night” or “Auto” until a check-mark appears
next to the setting, showing that setting has been se-
lected. Then press the arrow back button on the touch-
screen.
NOTE:When Day or Night is selected for the Display
Mode, the usage of the Parade Mode feature will cause
the radio to activate the Display Brightness Day control
even though the headlights are on.
402 UNDERSTANDING YOUR INSTRUMENT PANEL

had been selected. Press the back arrow button on the
touchscreen to return to the previous menu.
•Hill Start Assist — If Equipped
When this feature is selected, the Hill Start Assist (HSA)
system is active. Refer to “Electronic Brake Control
System” in “Starting And Operating” for system function
and operating information. To make your selection, press
the “Hill Start Assist” button on the touchscreen, until a
check-mark appears next to setting, indicating that the
setting had been selected. Press the back arrow button on
the touchscreen to return to the previous menu.
Lights
After pressing the Lights button on the touchscreen the
following settings will be available.
•Headlight Off Delay
When this feature is selected, it allows adjustment of the
amount of time the headlights remain on after the engine
is shut off. To change the Headlights Off Delay setting,
press the “+” or “-” button on the touchscreen to select
your desired time interval, and choose either 0 sec, 30 sec,
60 sec or 90 seconds. Press the back arrow button on the
touchscreen to return to the previous menu, or push the
back button on the faceplate.
•Headlight Illumination On Approach
When this feature is selected, the headlights will activate
and remain on for 0, 30, 60, or 90 seconds when the doors
are unlocked with the Remote Keyless Entry (RKE)
transmitter. To change the Illuminated Approach status,
press the “+” or “–” button on the touchscreen to select
your desired time interval. Press the back arrow button
on the touchscreen to return to the previous menu, or
push the back button on the faceplate.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 411

•Easy Exit Seat — If Equipped
This feature provides automatic driver seat positioning to
enhance driver mobility when entering and exiting the
vehicle. To make your selection, press the “Easy Exit
Seat” button on the touchscreen until a check-mark
appears next to setting, showing that setting has been
selected. Press the back arrow button on the touchscreen
to return to the previous menu.
•Engine Off Power Delay
When this feature is selected, the power window
switches, radio, Uconnect® phone system (if equipped),
DVD video system (if equipped), power sunroof (if
equipped), and power outlets will remain active for up to
10 minutes after the ignition is cycled to OFF. Opening
either front door will cancel this feature. To change the
Engine Off Power Delay status press the press the “+” or
“-” button to choose from “0 seconds,” “45 seconds,” “5
minutes,” or “10 minutes.” Press the back arrow button
on the touchscreen to return to the previous menu.
•Headlight Off Delay
When this feature is selected, the driver can choose to
have the headlights remain on for 0, 30, 60, or 90 seconds
when exiting the vehicle. To change the Headlight Off
Delay status press the “+” or “-” button on the touch-
screen to select your desired time interval. Press the back
arrow button on the touchscreen to return to the previous
menu.
Audio
After pressing the “Audio” button on the touchscreen the
following settings will be available.
•Balance/Fade
This feature allows you to adjust the Balance and Fade
settings. Press and drag the speaker icon, use the arrows
4
UNDERSTANDING YOUR INSTRUMENT PANEL 417

BRAKE SYSTEM
Your vehicle is equipped with dual hydraulic
brake systems. If either of the two hydraulic
systems loses normal capability, the remaining
system will still function. However, there will
be some loss of overall braking effectiveness. This will be
evident by increased pedal travel during application and
greater pedal force required to slow or stop the vehicle. In
addition, if the malfunction is caused by a leak in the
hydraulic system, the “Brake Warning Light” will turn on
as the brake fluid level drops in the master cylinder.
In the event power assist is lost for any reason (i.e.,
repeated brake applications with the engine OFF) the
brakes will still function. However, the effort required to
brake the vehicle will be much greater than that required
with the power system operating.
WARNING!
•Riding the brakes can lead to brake failure and
possibly a collision. Driving with your foot resting
or riding on the brake pedal can result in abnor-
mally high brake temperatures, excessive lining
wear, and possible brake damage. You would not
have your full braking capacity in an emergency.
•Driving a vehicle with the “Brake Warning Light”
on is dangerous. A significant decrease in braking
performance or vehicle stability during braking
may occur. It will take you longer to stop the
vehicle or will make your vehicle harder to control.
You could have a collision. Have the vehicle
checked immediately.
518 STARTING AND OPERATING

NOTE:When shifting the power transfer unit out of
NEUTRAL (N), the engine should remain OFF to avoid
gear clash.
9. Shift the transmission into PARK.
10. Release the brake pedal.
11. Disconnect vehicle from the tow vehicle.
12. Start the engine.
13. Press and hold the brake pedal.
14. Release the parking brake.
15. Shift the transmission into DRIVE, release the brake
pedal, and check that the vehicle operates normally.
NOTE:
•Steps 1 through 5 are requirements that must be met
before pressing the NEUTRAL (N) button, and must
continue to be met until the shift has been completed.
If any of these requirements are not met before press-
ing the NEUTRAL (N) button or are no longer met
during the shift, the NEUTRAL (N) indicator light will
flash continuously until all requirements are met or
until the NEUTRAL (N) button is released.
•The ignition switch must be in the ON/RUN position
for a shift to take place and for the position indicator
lights to be operable. If the ignition switch is not in the
ON/RUN position, the shift will not take place and no
position indicator lights will be on or flashing.
•A flashing NEUTRAL (N) position indicator light
indicates that shift requirements have not been met.
612 STARTING AND OPERATING

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 automatic
transmission control systems. When these systems are
operating properly, your vehicle will provide excellent
performance and fuel economy, as well as engine emis-
sions 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. Al-
though your vehicle will usually be drivable and not
need towing, see your authorized dealer for service as
soon as possible.
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 engine is running,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
Loose Fuel Filler Cap Message
If the vehicle diagnostic system determines that the fuel
filler cap is loose, improperly installed, or damaged, a
“CHECK GASCAP” message will be displayed in the
Electronic Vehicle Information Center (EVIC) or Driver
Information Display (DID). Refer to “Electronic Vehicle
Information (EVIC) or#Driver Information Display
(DID)” in “Understanding Your Instrument Panel” for
7
MAINTAINING YOUR VEHICLE 657

further information. Tighten the fuel filler cap until a
“clicking” sound is heard. This is an indication that the
fuel filler cap is properly tightened. Refer to “Onboard
Diagnostic System” in “Maintaining Your Vehicle” for
further information.
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 Mainte-
nance (I/M), this check verifies the “Malfunction
Indicator Light (MIL)” is functioning and is not
on when the engine is running, and that the OBD II
system is ready for testing.
Normally, the OBD II system will be ready. The OBD II
system maynotbe ready if your vehicle was recently
serviced, recently had a dead battery or a battery replace-
ment. If the OBD II system should be determined not
ready for the I/M test, your vehicle may fail the test.
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 MIL symbol come on as part
of a normal bulb check.
658 MAINTAINING YOUR VEHICLE