2020 JEEP WRANGLER UNLIMITED ECU

SAFETY
92
FCW Limited Warning
If the instrument cluster displays “ACC/FCW
Limited Functionality” or “ACC/FCW Limited
Functionality Clean Front Windshield”
momentarily, there may be a condition that
limits FCW functionality. Although the
vehicle is still drivable under normal condi-
tions, the active braking may not be fully
available. Once the condition that limited
the system performance is no longer present,
the system will return to its full performance
state. If the problem persists, see an autho -
rized dealer.
Service FCW Warning
If the system turns off, and the instrument
cluster displays:
ACC/FCW Unavailable Service Required
Cruise/FCW Unavailable Service Required
This indicates there is an internal system
fault. Although the vehicle is still drivable
under normal conditions, have the system
checked by an authorized dealer.
FCW Sensor Protective Cover
Your vehicle is equipped with a protective
cover that is to be used whenever the wind -
shield is folded down in order to protect the
FCW sensor. To install the cover, follow the
instructions below.
1. Secure the top part of the cover so that it hinges to the header.
2. Swing the cover down and push on it so that it covers the opening.
3. Check to make sure the cover is secured properly.
NOTE:
Be sure to remove the cover before returning
the windshield to the normal position. Store
the cover in the cargo area.
Cleaning Instructions
During windshield down applications, dust/
dirt can accumulate in the cover and block
the camera lens. Use a microfiber cloth to
clean the camera lens, module, and inside
cover, being careful not to damage or scratch
the module.
Tire Pressure Monitoring System (TPMS)
The Tire Pressure Monitoring System (TPMS)
will warn the driver of a low tire pressure
based on the vehicle recommended cold
placard pressure.
NOTE:
The alert warning on the cluster will stay
on until the tire is inflated to the placard
pressure.
The system only warns the tire pressure is
low: it is not able to inflate them.
The tire pressure will vary with temperature
by approximately 1 psi (7 kPa) for every 12°F
(6.5°C). This means that when the outside
temperature decreases, the tire pressure will
decrease. Tire pressure should always be set
based on cold inflation tire pressure. This is
defined as the tire pressure after the vehicle
has not been driven for at least three hours,
or driven less than 1 mile (1.6 km) after a
three hour period. The cold tire inflation
pressure must not exceed the maximum
inflation pressure molded into the tire side -
wall. Refer to “Tires” in “Servicing And
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 92

97

To deactivate the TPMS, first replace all four
wheel and tire assemblies (road tires) with tires
not equipped with Tire Pressure Monitoring (TPM)
sensors. Then, drive the vehicle for 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 remain on. The instrument
cluster will display the “SERVICE TIRE PRES-
SURE SYSTEM” message and then display
dashes (--) in place of the pressure values.
Beginning with the next ignition cycle, the TPMS
will no longer chime or display the “SERVICE
TIRE PRESSURE SYSTEM” message 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 instru -
ment cluster will display the “SERVICE TIRE
PRESSURE SYSTEM” message and then
display 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.
Warning Label On Front Passenger Sun Visor
2. A child who is not big enough to wear the vehicle seat belt properly (Refer to “Child
Restraints” in this section for further
information) must be secured in the
appropriate child restraint or belt-posi -
tioning booster seat in a rear seating
position.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 97

99
Enhanced Seat Belt Use Reminder System
(BeltAlert)
Front Seat and Second Row BeltAlert (If
Equipped) BeltAlert is a feature intended to remind
the driver and outboard front seat passenger
to buckle their seat belts. The BeltAlert
feature is active whenever the ignition switch
is in the START or ON/RUN position.
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 passenger 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
outboard 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
respective Seat Belt Reminder Light and
sounding an intermittent chime. Once the
BeltAlert warning 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 passenger seat belts are
buckled. The driver should instruct all occu
-
pants 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
passenger 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
Reminder 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
vehicle is moving above a specified vehicle
speed range.
If a second row seat belt is buckled, the Rear
BeltAlert Reminder light for that seating
position will illuminate solid green. If a rear
seat passenger is not wearing the seat belt,
the BeltAlert warning sequence will start (if
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 99

SAFETY
110

Following the actions listed in the table above will DISABLE (OFF) the Passenger Advanced Front Air Bag. The Passenger Air Bag DISABLE (OFF)
Indicator light on the overhead sports bar will illuminate to show that the Passenger Advanced Front Air Bag will not deploy during a collision.

ActionInformation
Scroll Up or Down to “Vehicle Set-Up”
Press the “OK” on the vehicle steering wheel to enter “Vehicle
Settings”
Scroll Up or Down using the arrow buttons on the steering wheel
to select “Security”
Press the “OK” button on the steering wheel to select “Security”
Press the “OK” button on the steering wheel to select “Passenger
AIRBAG”
Scroll Up or Down to Passenger AIRBAG OFF “ OFF” NOTE:
If the Passenger Advanced Front Air Bag was previously ENABLED (ON)
it will default to ON and user will have to scroll down to select OFF.
Press the “OK” button on the steering wheel to select Passenger
AIRBAG OFF “ OFF”
Scroll Up or Down to select “YES” to confirm
Press the “OK” button on the steering wheel to select “YES” NOTE:
If this step is not completed within 1 minute this option will timeout
and this process will have to be repeated.
A single chime will sound with the Passenger AIRBAG OFF
indicator light illuminated for 4 to 5 seconds confirming the disabling
of the Passenger Advanced Front Air Bag.
The Passenger AIRBAG OFF indicator light will remain continuously
illuminated telling the driver and front passenger that the Passenger
Advanced Front Air Bag is DISABLED (OFF).
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 110

111
ENABLING (ON) The Passenger Advanced Front Air Bag
Access the instrument cluster display main menu located in the instrument cluster by pushing the Up or Down arrow button located on the
steering wheel, then complete the following actions:
ActionInformation
Scroll Up or Down to “Vehicle Set-Up”
Press the “OK” on the vehicle steering wheel to enter “Vehicle
Settings”
Scroll Up or Down using the arrow buttons on the steering
wheel to select “Security”

Press the “OK” button on the steering wheel to select “Security”

Press the “OK” button on the steering wheel to select
“Passenger AIRBAG”
Scroll Up or Down to Passenger AIRBAG ON “ ON” NOTE:
If the Passenger Advanced Front Air Bag was previously DISABLED (OFF)
it will default to OFF and user will have to scroll down to select ON.
Press the “OK” button on the steering wheel to select
Passenger AIRBAG ON “ ON”
Press the “OK” button on the steering wheel to select “Yes” NOTE:
If this step is not completed within 1 minute this option will timeout and
this process will have to be repeated.
A single chime will sound with the Passenger AIRBAG ON indicator
light illuminated for 4 to 5 seconds confirming the enabling of the
Passenger Advanced Front Air Bag.
The Passenger AIRBAG ON indicator light will remain continuously
illuminated telling the driver and front passenger that the Passenger
Advanced Front Air Bag is ENABLED (ON).
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 111

SAFETY
118
(Continued)
There are different sizes and types of
restraints for children from newborn size to
the child almost large enough for an adult
safety belt. Children should ride rearward
facing as long as possible; this is the most
protected position for a child in the event of
a crash. Always check the child seat Owner’s
Manual to make sure you have the correct
seat for your child. Carefully read and follow
all the instructions and warnings in the child
restraint Owner’s Manual and on all the
labels attached to the child restraint.In Europe, children restraint systems are
defined by regulation ECE-R44, which
divides them into five weight groups:
Check the label of your child restraint. All
approved child restraints must include
type-approval data and the control mark on
its label. The label must be permanently
secured to the child restraint system. You
should not remove this label from the child
restraint.
WARNING!

NEVER use a rearward facing child
restraint on a seat protected by an ACTIVE
AIRBAG in front of it, DEATH or SERIOUS
INJURY to the CHILD can occur.

It is advisable to always carry children in
a child restraint system on the rear seat,
which is the most protected position in
the event of a collision.
Should it be necessary to carry a child on
the passenger side front seat in a
rear-facing child restraint system, the
passenger side front air bag must be
deactivated. Always make sure the
airbag deactivation indicator light is illu
-
minated when using a child restraint
system. The passenger seat must also be
positioned backward as far as possible to
avoid the child restraint system from
coming into contact with the dashboard.
A deploying passenger front air bag can
cause death or serious injury to a child
12 years or younger, including a child in
a rear-facing child restraint.
In a collision, an unrestrained child can
become a projectile inside the vehicle.
The force required to hold even an infant
on your lap could become so great that
you could not hold the child, no matter
how strong you are. The child and others
could be badly injured or killed. Any
child riding in your vehicle should be in
a proper restraint for the child’s size.
WARNING! (Continued)
Restraint Group Weight Group
Group 0 up to 10 kg
Group 0+ up to 13 kg
Group 1 9-18 kg
Group 2 15-25 kg
Group 3 22-36 kg
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 118

121
Group 3
Fig. D
Children who weigh between 22 kg and 36
kg and who are tall enough to use the adult
shoulder belt may use a Group 3 child
restraint. Group 3 child restraints position
the lap belt on the child’s pelvis. The child
must be tall enough that the shoulder belt
crosses the child’s chest and not their neck.
Fig. D shows an example of a Group 3 child
restraint system correctly positioning the
child on the rear seat.
Suitability of Passenger Seats for Universal
Child Restraint System Use
According to the European Directive 2000/3/
EC, the suitability of each passenger seat
position for the installation of Universal
Child Restraint Systems is shown in the
following table:
WARNING!

Improper installation can lead to failure of
an infant or child restraint. It could come
loose in a collision. The child could be
badly injured or killed. Follow the child
restraint manufacturer’s directions exactly
when installing an infant or child restraint.

After a child restraint is installed in the
vehicle, do not move the vehicle seat
forward or rearward because it can
loosen the child restraint attachments.
Remove the child restraint before
adjusting the vehicle seat position.
When the vehicle seat has been
adjusted, reinstall the child restraint.
When your child restraint is not in use,
secure it in the vehicle with the seat belt
or ISOFIX anchorages, or remove it from
the vehicle. Do not leave it loose in the
vehicle. In a sudden stop or accident, it
could strike the occupants or seatbacks
and cause serious personal injury.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 121

SAFETY
130
(Continued)
2. Route the tether strap to provide themost direct path for the strap between
the anchor and the child seat. If your
vehicle is equipped with adjustable rear
head restraints, raise the head restraint,
and where possible, route the tether
strap under the head restraint and
between the two posts. If not possible,
lower the head restraint and pass the
tether strap around the outboard side of
the head restraint.
3. Attach the tether strap hook of the child restraint to the top tether anchorage as
shown in the diagram.
Tether Strap Mounting (Two-Door Models) Tether Strap Mounting (Four-Door Models)
4. Remove slack in the tether strap according to the child restraint manufac -
turer’s instructions.
WARNING!
An incorrectly anchored tether strap
could lead to increased head motion and
possible injury to the child. Use only the
anchorage position directly behind the
child seat to secure a child restraint top
tether strap.
If your vehicle is equipped with a split
rear seat, make sure the tether strap
does not slip into the opening between
the seatbacks as you remove slack in the
strap.
WARNING!
The child restraint owner’s manual
provides instructions for installing the
child restraint using the seat belt. Read
and follow these instructions to install the
child seat properly.
WARNING! (Continued)
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 130