2018 JEEP WRANGLER UNLIMITED ECU

Manual Mode
To open the power top manually, push and
hold the open switch. The power top will stop
automatically at the open position. Any re-
lease of the switch will stop the movement.
The power top will remain in a partially
opened position until the switch is pushed
and held again.
Closing The Power Top
Express Mode
Push the close switch and release it within
one-half second. The power top will close
fully and stop automatically. This is called
“Express Close”. During Express Close opera-
tion, any movement of the switch will stop
the power top.
Manual Mode
To close the power top manually, push and
hold the close switch. The power top will
move forward and automatically stop at the
fully closed position. Any release of the
switch will stop the movement. The power top
will remain in a partially closed position until
the switch is pushed and held again.
Pinch Protect Feature
This feature will detect an obstruction in the
opening of the power top during Express
Close operation. If an obstruction in the path
of the power top is detected, the power top
will automatically retract. Remove the ob-
struction if this occurs. Next, push the close
switch and release to Express Close.
WARNING!
There is no anti-pinch protection when the
power top is almost closed. To avoid per-
sonal injury be sure to clear your arms,
hands, fingers and all objects from the
top’s path before closing.
NOTE:
• The Power Sliding Top may reverse motion
if closing during a severe headwind. If this
occurs, push the Power Sliding Top switch
again to close the top completely.
• If three consecutive power top close at-
tempts result in Pinch Protect reversals,
Pinch Protect will disable and the power
top must be closed in Manual Mode.
HOOD
Opening The Hood
Release both the hood latches.
Raise the hood and locate the safety latch,
located in the middle of the hood opening.
Push the safety latch to the left side of the
vehicle, to open the hood. You may have to
push down slightly on the hood before push-
ing the safety latch. Insert the support rod
into the slot on the hood.
Hood Latch LocationsGETTING TO KNOW YOUR VEHICLE
56

Closing The Hood
To close the hood, remove the support rod
from the hood panel and place it in the
retaining clip. Lower the hood slowly. Secure
both of the hood latches.
WARNING!
Be sure the hood is fully latched before
driving your vehicle. If the hood is not fully
latched, it could open when the vehicle is
in motion and block your vision. Failure to
follow this warning could result in serious
injury or death.
REAR SWING GATE
The rear swing gate can be unlocked by using
the key, Remote Keyless Entry key fob, by
activating the power door lock switches lo-
cated on the front doors, or grabbing the
handle if equipped with Keyless Enter-N-Go.
To open the swing gate, pull on the gate
handle.NOTE:Close the rear flip-up window before attempting
to close the swing gate (hard top models only).
WARNING!
Driving with the flip-up window open can
allow poisonous exhaust gases into your
WARNING!
vehicle. You and your passengers could be
injured by these fumes. Keep the flip-up
window closed when you are operating the
vehicle.
CAUTION!
Do not push on rear wiper blade when
closing the rear flip-up window, as damage
to the blade will result.
INTERNAL EQUIPMENT
Electrical Power Outlets
There are two 12 Volt (13 Amp) auxiliary
power outlets that can provide power for ac-
cessories designed for use with the standard
power outlet adapters.
Swing Gate Handle
57

GETTING TO KNOW YOUR INSTRUMENT PANEL
INSTRUMENT CLUSTER DISPLAY. .62
Instrument Cluster Display Location And
Controls....................62
Oil Change Indicator System — If
Equipped....................63
Instrument Cluster Display Selectable
Items......................63
Gear Shift Indicator (GSI) — If
Equipped....................64Fuel System Messages............64WARNING LIGHTS AND MES-
SAGES ....................66
Red Warning Lights..............66
Yellow Warning Lights............70
Yellow Indicator Lights............74
Green Indicator Lights............75
White Indicator Lights............76Blue Indicator Lights.............77
Gray Indicator Lights.............78
ONBOARD DIAGNOSTIC SYSTEM —
OBDII ....................78
Onboard Diagnostic System (OBD II)
Cybersecurity.................78
EMISSIONS INSPECTION AND
MAINTENANCE PROGRAMS....79
GETTING TO KNOW YOUR INSTRUMENT PANEL
61

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
— Anti-Lock Brake (ABS) Warning
Light
This warning light monitors the Anti-Lock
Brake System (ABS). The light will turn on
when the ignition is placed in the ON/RUN or
ACC/ON/RUN position and may stay on for as
long as four seconds.
If the ABS light remains on or turns on while
driving, then the Anti-Lock portion of the
brake system is not functioning and service is
required as soon as possible. However, the
conventional brake system will continue to
operate normally, assuming the Brake Warn-
ing Light is not also on.If the ABS light does not turn on when the
ignition is placed in the ON/RUN or ACC/ON/
RUN position, have the brake system in-
spected by an authorized dealer.
— 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 posi-
tion, 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 momen-
tarily each time the ignition is placed in the
ON/RUN or ACC/ON/RUN position.
GETTING TO KNOW YOUR INSTRUMENT PANEL
70

Gray Indicator Lights
— Cruise Control Ready Indicator
Light — If Equipped With Base Instrument
Cluster
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 information.
— Active Speed Limiter Ready Indica-
tor Light — If Equipped With A Base Instru-
ment Cluster
This light will turn on when the Active Speed
Limiter is on, but not set.
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 operatingproperly, 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 drivable
and not need towing, see an 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 vehicle is
running, severe catalytic converter dam-
age and power loss will soon occur. Im-
mediate service is required.
Onboard Diagnostic System (OBD II)
Cybersecurity
Your vehicle is required to have an Onboard
Diagnostic system (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.
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 ve-
hicle control could occur that may
result in an accident involving seri-
ous injury or death.
GETTING TO KNOW YOUR INSTRUMENT PANEL
78

WARNING!
• 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 may
notbe ready if your vehicle was
recently serviced, recently had a dead battery
or a battery replacement. If the OBD II sys-
tem 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.
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.
79

Beginning with the next ignition cycle, the
TPMS will no longer chime or display the
“SERVICE TIRE PRESSURE SYSTEM” mes-
sage in the instrument cluster but dashes (--)
will remain in place of the pressure values.
To reactivate the TPMS, replace all four
wheel and tire assemblies (road tires) with
tires equipped with TPMS sensors. Then,
drive the vehicle for up to 10 minutes above
15 mph (24 km/h). The TPMS will chime, the
TPMS Warning Light will flash on and off for
75 seconds and then turn off. The instrument
cluster will display the “SERVICE TIRE
PRESSURE SYSTEM” message and then dis-
play pressure values in place of the dashes.
On the next ignition cycle the "SERVICE TIRE
PRESSURE SYSTEM" message will no longer
be displayed as long as no system fault exists.
OCCUPANT RESTRAINT
SYSTEMS
Some of the most important safety features in
your vehicle are the restraint systems:
Occupant Restraint Systems Features
• Seat Belt Systems
• Supplemental Restraint Systems (SRS) Air
Bags
• Child Restraints
Some of the safety features described in this
section may be standard equipment on some
models, or may be optional equipment on
others. If you are not sure, ask an authorized
dealer.
Important Safety Precautions
Please pay close attention to the information
in this section. It tells you how to use your
restraint system properly, to keep you and
your passengers as safe as possible.
Here are some simple steps you can take to
minimize the risk of harm from a deploying
air bag:
1. Children 12 years old and under should
always ride buckled up in the rear seat of
a vehicle with a rear seat.2. A child who is not big enough to wear the
vehicle seat belt properly (Refer to “Child
Restraints” in this section for further in-
formation) must be secured in the appro-
priate child restraint or belt-positioning
booster seat in a rear seating position.
3. If a child from 2 to 12 years old (not in a
rear-facing child restraint) must ride in
the front passenger seat, move the seat asWarning Label On Front Passenger Sun
Visor
99

Initial Indication
If the driver is unbuckled when the ignition
switch is first in the START or ON/RUN posi-
tion, a chime will signal for a few seconds. If
the driver or outboard front seat passenger is
unbuckled when the ignition switch is first in
the START or ON/RUN position, the respec-
tive Seat Belt Reminder Light will turn solid
red and remain red until the seat belt is
buckled. The respective Seat Belt Reminder
Light will turn solid green once the seat belt
is buckled. After the driver and outboard front
seat passenger have buckled their seat belts
all Seat Belt Reminder Lights will turn off.
The outboard front passenger seat BeltAlert
is not active when the outboard front passen-
ger seat is unoccupied.
BeltAlert Warning Sequence
The BeltAlert warning sequence is activated
when the vehicle is moving above a specified
vehicle speed range and the driver or out-
board front seat passenger is unbuckled (the
outboard front passenger seat BeltAlert is not
active when the outboard front passenger
seat is unoccupied). The BeltAlert warning
sequence starts by blinking the respectiveSeat Belt Reminder Light and sounding an
intermittent chime. Once the BeltAlert warn-
ing sequence has completed, the Seat Belt
Reminder Light will remain solid red until the
driver and outboard front seat passenger are
buckled. The BeltAlert warning sequence
may repeat based on vehicle speed until the
driver and occupied outboard front seat pas-
senger seat belts are buckled. The driver
should instruct all occupants to buckle their
seat belts.
Change of Status
If the driver or outboard front seat passenger
unbuckles their seat belt while the vehicle is
traveling, the BeltAlert warning sequence will
begin until the seat belts are buckled again.
The outboard front passenger seat BeltAlert
is not active when the outboard front passen-
ger seat is unoccupied. BeltAlert may be
triggered when an animal or other items are
placed on the outboard front passenger seat
or when the seat is folded flat (if equipped). It
is recommended that pets be restrained in
the rear seat (if equipped) in pet harnesses or
pet carriers that are secured by seat belts,
and cargo is properly stowed.Rear Seat BeltAlert (If Equipped)
Rear Seat BeltAlert shows the driver whether
the seat belts in the rear seat are buckled or
unbuckled (if equipped with Rear Seat
BeltAlert). When the ignition switch is in the
START or ON/RUN position, a Seat Belt Re-
minder Light
located in the upper right
corner of the instrument cluster turns on for
each second row seat position (if equipped
with Rear Seat BeltAlert). The Rear BeltAlert
warning sequence is activated when the ve-
hicle is moving above a specified vehicle
speed range.
If a second row seat belt is buckled, the Rear
BeltAlert Reminder light for that seating po-
sition will illuminate solid green. If a rear seat
passenger is not wearing the seat belt, the
BeltAlert warning sequence will start (if
equipped with Rear Seat BeltAlert). The re-
spective Seat Belt Reminder light will illumi-
nate solid red. If the seat belt is not buckled
when the vehicle exceeds a specified speed,
the Rear Seat Belt Reminder light will flash
red and a continuous chime will sound for
approximately 30 seconds if there is no
change of status of the rear seat belt buckles.
101