2018 JEEP COMPASS check engine

Electronic Steering Wheel Lock — If
Equipped
Your vehicle may be equipped with a passive
electronic steering wheel lock. This lock pre-
vents steering the vehicle with the ignition
OFF. The steering wheel lock releases with
the ignition ON. If the lock does not disen-
gage and the vehicle does not start, turn the
wheel to the left and right to disengage the
lock.
REMOTE STARTING
SYSTEM — IF EQUIPPED
• Push the remote start button
on the key fob twice within five
seconds. Pushing the remote
start button a third time shuts
the engine off.
• To drive the vehicle, push the START/STOP
button to turn the ignition to the ON/RUN
mode.
• With remote start, the engine will only run
for 15 minutes (timeout) unless the igni-
tion is placed in the ON/RUN mode.• The vehicle must be started with the key
after two consecutive timeouts.
WARNING!
• Do not start or run an engine in a closed
garage or confined area. Exhaust gas
contains Carbon Monoxide (CO) which is
odorless and colorless. Carbon Monox-
ide is poisonous and can cause serious
injury or death when inhaled.
• Keep key fobs away from children. Op-
eration of the Remote Start System, win-
dows, door locks or other controls could
cause serious injury or death.
How To Use Remote Start — If Equipped
Push remote start button on the key fob twice
within five seconds. Pushing the remote start
button a third time shuts the engine off.
To drive the vehicle, push unlock button,
insert the key in the ignition and turn to the
ON/RUN position.NOTE:
•With remote start, the engine will only run
for 15 minutes (timeout) unless the igni-
tion key is placed in the ON/RUN position.
•The vehicle must be started with the key
after two consecutive timeouts.
All of the following conditions must be met
before the engine will remote start:
•Gear selector in PARK
•Doors closed
•Hood closed
•Liftgate closed
•Hazard switch off
•Brake switch inactive (brake pedal not
pushed)
•Battery at an acceptable charge level
•Check engine light shall not be present
•System not disabled from previous remote
start event
•Vehicle alarm system indicator flashing
•Ignition in STOP/OFF position
•Fuel level meets minimum requirement
• Vehicle security alarm is not signaling an
intrusion
17

NOTE:
The engine must be running before the head-
lights will come on in the automatic mode.
Headlight Time Delay
This feature provides the safety of headlight
illumination for up to 90 seconds (program-
mable) when leaving your vehicle in an unlit
area.
To activate the delay feature, place the igni-
tion in the OFF position while the headlights
are still on. Then, turn off the headlights
within 45 seconds. The delay interval begins
when the headlight switch is turned off.
If you turn the headlights or parking lights on,
or place the ignition in ACC or RUN, the
system will cancel the delay.
If you turn the headlights off before the
ignition, they will turn off in the normal
manner.NOTE:
• The lights must be turned off within
45 seconds of placing the ignition in the
OFF position to activate this feature. If the
headlight switch is in the AUTO position
prior to turning the ignition OFF, there is no
need to turn the headlight switch to off to
activate Headlight Delay.
• The headlight delay time is programmable
using the Uconnect System. Refer to
“Uconnect Settings” in “Multimedia” in
the Owner’s Manual for further details.
Front And Rear Fog Lights — If Equipped
The fog light switches are built into the head-
light switch.
To activate the front fog lights, push the
upper half of the headlight switch. To turn off
the front fog lights, push the upper half of the
headlight switch a second time.
To activate the rear fog lights, push the
lower half of the headlight switch. To turn off
the rear fog lights, push the lower half of the
headlight switch a second time.NOTE:
To turn on the rear fog lamps, the low beam
lamps or front fog lamps must first be active.
An indicator light in the instrument cluster
illuminates when the fog lights are turned on.
Multifunction Lever
The multifunction lever controls the opera-
tion of the turn signals, headlight beam se-
lection and passing lights. The multifunction
lever is located on the left side of the steering
column.
Turn Signals
Move the multifunction lever up or down and
the arrows on each side of the instrument
cluster display flash to show proper operation
of the front and rear turn signal lights.
NOTE:
• If either light remains on and does not
flash, or there is a very fast flash rate, check
for a defective outside light bulb. If an
indicator fails to light when the lever is
moved, it would suggest that the indicator
bulb is defective.
GETTING TO KNOW YOUR VEHICLE
36

The dual brake system provides a reserve brak-
ing capacity in the event of a failure to a portion
of the hydraulic system. A leak in either half of
the dual brake system is indicated by the Brake
Warning Light, which will turn on when the
brake fluid level in the master cylinder has
dropped below a specified level.
The light will remain on until the cause is
corrected.
NOTE:
The light may flash momentarily during sharp
cornering maneuvers, which change fluid
level conditions. The vehicle should have
service performed, and the brake fluid level
checked.
If brake failure is indicated, immediate repair
is necessary.
WARNING!
Driving a vehicle with the red brake light
on is dangerous. Part of the brake system
may have failed. It will take longer to stop
the vehicle. You could have a collision.
Have the vehicle checked immediately.Vehicles equipped with the Anti-Lock Brake
System (ABS) are also equipped with Elec-
tronic Brake Force Distribution (EBD). In the
event of an EBD failure, the Brake Warning
Light will turn on along with the ABS Light.
Immediate repair to the ABS system is re-
quired.
Operation of the Brake Warning Light can be
checked by turning the ignition switch from
the OFF position to the ON/RUN position.
The light should illuminate for approximately
four seconds. The light should then turn off
unless the parking brake is applied or a brake
fault is detected. If the light does not illumi-
nate, have the light inspected by an autho-
rized dealer.
The light also will turn on when the parking
brake is applied with the ignition switch in
the ON/RUN position.
NOTE:
This light shows only that the parking brake is
applied. It does not show the degree of brake
application.
— Battery Charge Warning Light
This light illuminates when the battery is not
charging properly. If it stays on while the
engine is running, there may be a malfunc-
tion with the charging system. Contact your
authorized dealer as soon as possible.
This indicates a possible problem with the
electrical system or a related component.
— Door Open Warning Light
This indicator will illuminate when a door is
ajar/open and not fully closed.
NOTE:
If the vehicle is moving, there will also be a
single chime.
— Electric Power Steering Fault
Warning Light
This light will turn on when there's a fault
with the EPS (Electric Power Steering) sys-
tem. Refer to “Power Steering” in “Starting
And Operating” in the Owner’s Manual for
further information.
GETTING TO KNOW YOUR INSTRUMENT PANEL
62

WARNING!
Continued operation with reduced assist
could pose a safety risk to yourself and
others. Service should be obtained as soon
as possible.
— Electronic Throttle Control (ETC)
Warning Light
This light informs you of a problem with the
Electronic Throttle Control (ETC) system. If a
problem is detected while the vehicle is run-
ning, the light will either stay on or flash
depending on the nature of the problem.
Cycle the ignition when the vehicle is safely
and completely stopped and the transmission
is placed in the PARK position. The light
should turn off. If the light remains on with
the vehicle running, your vehicle will usually
be drivable; however, see an authorized
dealer for service as soon as possible.
NOTE:
This light may turn on if the accelerator and
brake pedals are pressed at the same time.If the light continues to flash when the ve-
hicle is running, immediate service is re-
quired and you may experience reduced per-
formance, an elevated/rough idle, or engine
stall and your vehicle may require towing. The
light will come on when the ignition is placed
in the ON/RUN or ACC/ON/RUN position 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.— Engine Coolant Temperature Warn-
ing Light
This light warns of an overheated engine
condition. If the engine coolant temperature
is too high, this indicator will illuminate and a
single chime will sound. If the temperature
reaches the upper limit, a continuous chime
will be sound for four minutes or until the
engine is able to cool: whichever comes first.
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 vehicle. If the
temperature reading does not return to nor-mal, turn the engine off immediately and call
for service. Refer to “If Your Engine Over-
heats” in “In Case Of Emergency” for further
information.
— Hood Open Warning Light
This indicator will illuminate when the hood
is left open and not fully closed.
NOTE:
If the vehicle is moving, there will also be a
single chime.
— Liftgate Open Warning Light
This indicator will turn when the liftgate is
open.
NOTE:
If the vehicle is moving, there will also be a
single chime.
— Oil Pressure Warning Light
This light 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.
63

Do not operate the vehicle until the cause is
corrected. This light does not indicate how
much oil is in the engine. The engine oil level
must be checked under the hood.
— Oil Temperature Warning Light
This telltale indicates engine oil temperature
is high. If the light turns on while driving,
stop the vehicle and shut off the engine as
soon as possible. Wait for oil temperature to
return to normal levels.
— Seat Belt Reminder Warning Light
This light indicates when the driver or pas-
senger seat belt is unbuckled. When the
ignition is first placed in the ON/RUN or
ACC/ON/RUN position and if the driver’s seat
belt is unbuckled, a chime will sound and the
light will turn on. When driving, if the driver
or front passenger seat belt remains unbuck-
led, the Seat Belt Reminder Light will flash or
remain on continuously and a chime will
sound. Refer to “Occupant Restraints Sys-
tems” in “Safety” for further information.
— Transmission Fault Warning Light —
If Equipped
This light will illuminate (together with a
message in the instrument cluster display
and a buzzer) to indicate a transmission
fault. Contact your authorized dealer if the
message remains after restarting the engine.
— Transmission Temperature Warning
Light — If Equipped
This light indicates high transmission fluid
temperature. This may occur with strenuous
usage such as trailer towing. If this light turns
on, stop the vehicle and run the engine at idle
or slightly faster, with the transmission in
PARK or NEUTRAL, until the light turns off.
Once the light turns off, you may continue to
drive normally.
WARNING!
If you continue operating the vehicle when
the Transmission Temperature Warning Light
is illuminated you could cause the fluid to
boil over, come in contact with hot engine or
exhaust components and cause a fire.
CAUTION!
Continuous driving with the Transmission
Temperature Warning Light illuminated
will eventually cause severe transmission
damage or transmission failure.
— Vehicle Security Warning Light — If
Equipped
This light will flash at a fast rate for approxi-
mately 15 seconds when the vehicle security
alarm is arming, and then will flash slowly
until the vehicle is disarmed.
Yellow Warning Lights
— Active Speed Limiter Fault Indica-
tor Light — If Equipped
This light will turn on when there is a fault
detected with the Active Speed Limiter.
GETTING TO KNOW YOUR INSTRUMENT PANEL
64

— Low Coolant Level Warning Light
This telltale will turn on to indicate the ve-
hicle coolant level is low.
— Low Fuel Warning Light
Depending on whether the tank size is 51L or
60L, the Low Fuel Indicator Light will turn on
when the fuel level goes below 1.5 gal (5.6L)
or 1.7 gal (6.6L) respectively.
— Low Washer Fluid Warning Light —
If Equipped
This indicator will illuminate when the wind-
shield washer fluid is low.
— Fuel Cutoff Warning Light — If
Equipped
This telltale will illuminate after an accident
has occurred, and the system has shut the
fuel off.
— Engine Check/Malfunction Indica-
tor Warning Light (MIL)
The Engine Check/Malfunction Indicator
Light (MIL) is a part of an Onboard Diagnostic
System called OBD II that monitors engineand automatic transmission control systems.
The 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 illumi-
nate 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 as soon as possible if this
occurs.
WARNING!
A malfunctioning catalytic converter, as
referenced above, can reach higher tem-
peratures than in normal operating condi-
tions. This can cause a fire if you drive
WARNING!
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 dam-
age 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.
— Service Adaptive Cruise Control
Warning Light — If Equipped
This light will turn on when a ACC is not
operating and needs service. Refer to “Adap-
tive Cruise Control (ACC)” in “Starting And
Operating” for further information.
GETTING TO KNOW YOUR INSTRUMENT PANEL
66

WARNING!
• ONLY an authorized service technician
should connect equipment to the OBD II
connection port in order to 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 ve-
hicle control could occur that may
result in an accident involving seri-
ous injury or death.
• Access, or allow others to access,
information stored in your vehicle
systems, including personal infor-
mation.
For further information, refer to “Cybersecu-
rity” in “Multimedia”.
EMISSIONS INSPECTION
AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal require-
ment to pass an inspection of your vehicle's
emissions control system. Failure to pass
could prevent vehicle registration.
Normally, the OBD II system will be
ready. The OBD II system maynot
be ready if your vehicle was re-
cently serviced, recently had a
dead battery or a battery replacement. 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 posi-
tion, 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 “Mal-
function Indicator Light (MIL)” 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 ten 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 isnot readyand you shouldnot
proceed to the I/M station.
• The MIL will not flash at all and will remain
fully illuminated until you place the igni-
tion in the off position or start the engine.
This means that your vehicle's OBD II sys-
tem isreadyand you can proceed to the I/M
station.
GETTING TO KNOW YOUR INSTRUMENT PANEL
72

If your OBD II system isnot 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 above
test routine may then indicate that the sys-
tem isnow ready.Regardless of whether your vehicle's OBD II
system is ready or not, if the MIL is illumi-
nated during normal vehicle operation you
should have your vehicle serviced before go-
ing to the I/M station. The I/M station can fail
your vehicle because the MIL is on with the
engine running.
73