steering JEEP WRANGLER UNLIMITED 2020 Owner handbook (in English)

78
(Continued)
SAFETY
SAFETY FEATURES
Anti-Lock Brake System (ABS)
The Anti-Lock Brake System (ABS) provides
increased vehicle stability and brake perfor-
mance under most braking conditions. The
system automatically prevents wheel lock,
and enhances vehicle control during braking.
The ABS performs a self-check cycle to
ensure that the ABS is working properly each
time the vehicle is started and driven. During
this self-check, you may hear a slight
clicking sound as well as some related motor
noises.
ABS is activated during braking when the
system detects one or more wheels begin to
lock. Road conditions such as ice, snow,
gravel, bumps, railroad tracks, loose debris,
or panic stops may increase the likelihood of
ABS activation(s). You also may experience the following when
ABS activates:
The ABS motor noise (it may continue to
run for a short time after the stop)
The clicking sound of solenoid valves
Brake pedal pulsations
A slight drop of the brake pedal at the end
of the stop
These are all normal characteristics of ABS.
ABS is designed to function with the Original
Equipment Manufacturer (OEM) tires. Modi-
fication may result in degraded ABS perfor -
mance.
Anti-Lock Brake Warning Light
The yellow “Anti-Lock Brake Warning Light”
will turn on when the ignition is placed in the
ON/RUN mode and may stay on for as long
as four seconds.
WARNING!

The ABS contains sophisticated electronic
equipment that may be susceptible to inter -
ference caused by improperly installed or
high output radio transmitting equipment.
This interference can cause possible loss of
anti-lock braking capability. Installation of
such equipment should be performed by
qualified professionals.

Pumping of the Anti-Lock Brakes will
diminish their effectiveness and may
lead to a collision. Pumping makes the
stopping distance longer. Just press
firmly on your brake pedal when you
need to slow down or stop.
The ABS cannot prevent the natural laws
of physics from acting on the vehicle, nor
can it increase braking or steering effi -
ciency beyond that afforded by the
condition of the vehicle brakes and tires
or the traction afforded.
The ABS cannot prevent collisions,
including those resulting from excessive
speed in turns, following another vehicle
too closely, or hydroplaning.
The capabilities of an ABS equipped
vehicle must never be exploited in a
reckless or dangerous manner that could
jeopardize the user’s safety or the safety
of others.
WARNING! (Continued)
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SAFETY
80
Electronic Brake Force Distribution (EBD)
The Electronic Brake Force Distribution
(EBD) manages the distribution of the
braking torque between the front and rear
axles by limiting braking pressure to the rear
axle. This is done to prevent overslip of the
rear wheels to avoid vehicle instability, and
to prevent the rear axle from entering ABS
before the front axle.
Electronic Roll Mitigation (ERM)
Electronic Roll Mitigation (ERM) anticipates
the potential for wheel lift by monitoring the
driver’s steering wheel input and the speed
of the vehicle. When ERM determines that
the rate of change of the steering wheel
angle and vehicle’s speed are sufficient to
potentially cause wheel lift, it then applies
the appropriate brake and may also reduce
engine power to lessen the chance that
wheel lift will occur. ERM can only reduce
the chance of wheel lift occurring during
severe or evasive driving maneuvers; it
cannot prevent wheel lift due to other
factors, such as road conditions, leaving the
roadway, or striking objects or other vehicles.NOTE:
ERM is disabled anytime the ESC is in “Full
Off” mode (if equipped). Refer to “Electronic
Stability Control (ESC)” in this section for a
complete explanation of the available ESC
modes.
Electronic Stability Control (ESC)
Electronic Stability Control (ESC) enhances
directional control and stability of the
vehicle under various driving conditions.
ESC corrects for oversteering or under
-
steering of the vehicle by applying the brake
of the appropriate wheel(s) to assist in coun -teracting the oversteer or understeer condi
-
tion. Engine power may also be reduced to
help the vehicle maintain the desired path.
ESC uses sensors in the vehicle to determine
the vehicle path intended by the driver and
compares it to the actual path of the vehicle.
When the actual path does not match the
intended path, ESC applies the brake of the
appropriate wheel to assist in counteracting
the oversteer or understeer condition.
Oversteer — when the vehicle is turning
more than appropriate for the steering
wheel position.
Understeer — when the vehicle is turning
less than appropriate for the steering
wheel position.
The “ESC Activation/Malfunction Indicator
Light” located in the instrument cluster will
start to flash as soon as the ESC system
becomes active. The “ESC Activation/
Malfunction Indicator Light” also flashes
when the TCS is active. If the “ESC Activa -
tion/Malfunction Indicator Light” begins to
flash during acceleration, ease up on the
accelerator and apply as little throttle as
possible. Be sure to adapt your speed and
driving to the prevailing road conditions.
WARNING!
Many factors, such as vehicle loading,
road conditions and driving conditions,
influence the chance that wheel lift or
rollover may occur. ERM cannot prevent all
wheel lift or roll overs, especially those
that involve leaving the roadway or striking
objects or other vehicles. The capabilities
of an ERM-equipped vehicle must never
be exploited in a reckless or dangerous
manner which could jeopardize the user's
safety or the safety of others.
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81
(Continued)ESC Operating Modes
NOTE:
Depending upon model and mode of opera-
tion, the ESC system may have multiple
operating modes.
ESC On
“ESC On” is the normal operating mode for
the ESC. Whenever the vehicle is started, the
ESC system will be in this mode. This mode should be used for most driving conditions.
Alternate ESC modes should only be used for
specific reasons as noted in the following
paragraphs.
Partial Off

The “Partial Off” mode is intended for times
when a more spirited driving experience is
desired. This mode may modify TCS and ESC
thresholds for activation, which allows for more
wheel spin than normally allowed. This mode
may be useful if the vehicle becomes stuck.

To enter the “Partial Off” mode, momentarily
push the “ESC OFF” switch and the “ESC
OFF Indicator Light” will illuminate. To turn
the ESC on again, momentarily push the
“ESC OFF” switch and the “ESC OFF Indi
-
cator Light” will turn off.
NOTE:
For vehicles with multiple partial ESC
modes, a momentary button push will toggle
the ESC mode. Multiple momentary button
pushes may be required to return to “ESC
On” mode.
WARNING!
Electronic Stability Control (ESC) cannot
prevent the natural laws of physics from
acting on the vehicle, nor can it increase
the traction afforded by prevailing road
conditions. ESC cannot prevent acci -
dents, including those resulting from
excessive speed in turns, driving on very
slippery surfaces, or hydroplaning. ESC
also cannot prevent accidents resulting
from loss of vehicle control due to inap -
propriate driver input for the conditions.
Only a safe, attentive, and skillful driver
can prevent accidents. The capabilities
of an ESC equipped vehicle must never
be exploited in a reckless or dangerous
manner which could jeopardize the
user’s safety or the safety of others.Vehicle modifications, or failure to prop -
erly maintain your vehicle, may change
the handling characteristics of your
vehicle, and may negatively affect the
performance of the ESC system.
Changes to the steering system, suspen -
sion, braking system, tire type and size
or wheel size may adversely affect ESC
performance. Improperly inflated and
unevenly worn tires may also degrade
ESC performance. Any vehicle modifica-
tion or poor vehicle maintenance that
reduces the effectiveness of the ESC
system can increase the risk of loss of
vehicle control, vehicle rollover, personal
injury and death.
WARNING! (Continued)
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SAFETY
90
system determines that a forward collision is
probable, the driver will be provided with
audible and visual warnings as well as a
possible haptic warning in the form of a
brake jerk.
If the driver does not take action based upon
these progressive warnings, then the system
will provide a limited level of active braking
to help slow the vehicle and mitigate the
potential forward collision. If the driver
reacts to the warnings by braking and the
system determines that the driver intends to
avoid the collision by braking but has not
applied sufficient brake force, the system
will compensate and provide additional
brake force as required.
If a FCW with Mitigation event begins at a
speed below 32 mph (52 km/h), the system
may provide the maximum braking possible
to mitigate the potential forward collision. If
the Forward Collision Warning with Mitiga-
tion event stops the vehicle completely, the
system will hold the vehicle at standstill for
two seconds and then release the brakes. FCW Message

When the system determines a collision with
the vehicle in front of you is no longer probable,
the warning message will be deactivated.

NOTE:
The minimum speed for FCW activation is
3 mph (5 km/h).

The FCW alerts may be triggered on objects
other than vehicles such as guard rails or sign
posts based on the course prediction. This is
expected and is a part of normal FCW activa-
tion and functionality.

It is unsafe to test the FCW system. To prevent
such misuse of the system, after four Active
Braking events within a key cycle, the Active Braking portion of FCW will be deactivated
until the next Key Cycle.

The FCW system is intended for on-road
use only. If the vehicle is taken off-road,
the FCW system should be deactivated to
prevent unnecessary warnings to the
surroundings.
FCW may not react to irrelevant objects
such as overhead objects, ground reflec-
tions, objects not in the path of the
vehicle, stationary objects that are far
away, oncoming traffic, or leading vehicles
with the same or higher rate of speed.
FCW will be disabled like ACC, with the
unavailable screens.
WARNING!
Forward Collision Warning (FCW) is not
intended to avoid a collision on its own,
nor can FCW detect every type of potential
collision. The driver has the responsibility
to avoid a collision by controlling the
vehicle via braking and steering. Failure to
follow this warning could lead to serious
injury or death.
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SAFETY
104
Seat Belts And Pregnant Women
Seat Belts And Pregnant Women
Seat belts must be worn by all occupants
including pregnant women: the risk of injury
in the event of an accident is reduced for the
mother and the unborn child if they are
wearing a seat belt.

Position the lap belt snug and low below the
abdomen and across the strong bones of the hips.
Place the shoulder belt across the chest and away
from the neck. Never place the shoulder belt
behind the back or under the arm.

Seat Belt Pretensioner

The front outboard seat belt system is equipped
with pretensioning devices that are designed to
remove slack from the seat belt in the event of
a collision. These devices may improve the performance of the seat belt by removing slack
from the seat belt early in a collision. Preten
-
sioners work for all size occupants, including
those in child restraints.

NOTE:
These devices are not a substitute for proper
seat belt placement by the occupant. The
seat belt still must be worn snugly and posi -
tioned properly.
The pretensioners are triggered by the Occu -
pant Restraint Controller (ORC). Like the air
bags, the pretensioners are single use items.
A deployed pretensioner or a deployed air
bag must be replaced immediately.
Energy Management Feature

The front outboard seat belt system is equipped
with an Energy Management feature that may
help further reduce the risk of injury in the event
of a collision. The seat belt system has a retractor
assembly that is designed to release webbing in a
controlled manner.

Supplemental Restraint Systems (SRS)

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.
The air bag system must be ready to protect you
in a collision. The Occupant Restraint
Controller (ORC) monitors the internal circuits
and interconnecting wiring associated with the
electrical Air Bag System Components. Your
vehicle may be equipped with the following Air
Bag System Components:

Air Bag System Components
Occupant Restraint Controller (ORC)
Air Bag Warning Light
Steering Wheel and Column
Instrument Panel
Knee Impact Bolsters
Driver and Front Passenger Air Bags
Seat Belt Buckle Switch
Supplemental Side Air Bags
Front and Side Impact Sensors
Seat Belt Pretensioners
Seat Track Position Sensors
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SAFETY
106
(Continued)
For additional information regarding the
Redundant Air Bag Warning Light refer to
“Getting To Know Your Instrument Panel”
for further information.
Front Air Bags
This vehicle has front air bags and lap/
shoulder belts for both the driver and front
passenger. The front air bags are a supple-
ment to the seat belt restraint systems. The
driver front air bag is mounted in the center
of the steering wheel. The passenger front air
bag is mounted in the instrument panel,
above the glove compartment. The words
“SRS AIRBAG” or “AIRBAG” are embossed
on the air bag covers.
Front Air Bag/Knee Impact Bolster LocationsDriver And Passenger Front Air Bag Features
The front air bag system is designed to
inflate based on the severity and type of
collision as determined by the Occupant
Restraint Controller (ORC), which may
receive information from the front impact
sensors (if equipped) or other system compo -
nents. The driver front air bag system has a
single stage air bag. The passenger front air
bag system has a multistage front air bag.
The first stage inflator is triggered immedi -
ately during an impact that requires air bag
deployment. For the multistage air bag, a low
energy output is used in less severe colli -
sions. A higher energy output is used for
more severe collisions.

This vehicle may be equipped with a driver and/or
front passenger seat belt buckle switch that
detects whether the driver or front passenger seat
belt is buckled. The seat belt buckle switch may
adjust the inflation rate of the passenger multi -
stage Front Air Bag.

1 — Driver And Passenger Front Air Bags

2 — Driver And Passenger Knee Impact Bolster

WARNING!
Being too close to the steering wheel or
instrument panel during front air bag
deployment could cause serious injury,
including death. Air bags need room to
inflate. Sit back, comfortably extending
your arms to reach the steering wheel or
instrument panel.

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 airbag 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.
WARNING! (Continued)
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107
This vehicle may be equipped with driver
and/or front passenger seat track position
sensors that may adjust the inflation rate of
the Advanced Front Air Bags based upon
seat position.Front Air Bag Operation
Front Air Bags are designed to provide addi-
tional protection by supplementing the seat
belts. Front air bags are not expected to
reduce the risk of injury in rear, side, or roll -
over collisions. The front air bags will not
deploy in all frontal collisions, including
some that may produce substantial vehicle
damage — for example, some pole colli -
sions, truck underrides, and angle offset
collisions.
On the other hand, depending on the type
and location of impact, front air bags may
deploy in crashes with little vehicle front-end
damage but that produce a severe initial
deceleration.
Because air bag sensors measure vehicle
deceleration over time, vehicle speed and
damage by themselves are not good indica -
tors of whether or not an air bag should have
deployed.
Seat belts are necessary for your protection
in all collisions, and also are needed to help
keep you in position, away from an inflating
air bag. When the ORC detects a collision requiring
the front air bags, it signals the inflator units.
A large quantity of non-toxic gas is generated
to inflate the front air bags.
The steering wheel hub trim cover and the
upper passenger side of the instrument
panel separate and fold out of the way as the
air bags inflate to their full size. The front air
bags fully inflate in less time than it takes to
blink your eyes. The front air bags then
quickly deflate while helping to restrain the
driver and front passenger.
Passenger Air Bag Disable Feature — If
Equipped
This system allows the driver to DISABLE
(OFF) the Passenger Advanced Front Air Bag
if a child restraint
must be installed in the
front seat. Only DISABLE (OFF) the
Passenger Advanced Front Air Bag if it is
absolutely necessary to install a child
restraint in the front seat. Children 12 years
or younger should ride properly buckled up in
a rear seat, if available. According to crash
statistics, children are safer when properly
restrained in the rear seats rather than in the
front. (Refer to “Child Restraints” in this
section for further information.)
WARNING!
No objects should be placed over or near
the air bag on the instrument panel or
steering wheel because any such objects
could cause harm if the vehicle is in a
collision severe enough to cause the air
bag to inflate.
Do not put anything on or around the air
bag covers or attempt to open them
manually. You may damage the air bags
and you could be injured because the air
bags may no longer be functional. The
protective covers for the air bag cushions
are designed to open only when the air
bags are inflating.
Relying on the air bags alone could lead
to more severe injuries in a collision. The
air bags work with your seat belt to
restrain you properly. In some collisions,
air bags won’t deploy at all. Always wear
your seat belts even though you have air
bags.
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109
(Continued)
Once the self-check is complete, only one
Passenger Air Bag Indicator Light should be
illuminated at a time. Passenger Air Bag DISABLE (OFF) Indicator
Light – Located On The Overhead Sports Bar
The Passenger Air Bag DISABLE (OFF) Indi -
cator Light tells the driver and front
passenger when the Passenger Advanced
Front Air Bag is deactivated. The Passenger
Air Bag DISABLE (OFF) Indicator Light will
illuminate to show that the Passenger
Advanced Front Air Bag will not deploy
during a collision. NEVER assume the
Passenger Advanced Front Air Bag is deacti -
vated unless the Passenger Air Bag DISABLE
(OFF) Indicator Light is illuminated.
Passenger Air Bag ENABLE (ON) Indicator
Light – Located On The Overhead Sports Bar
The Passenger Air Bag ENABLE (ON) Indi -
cator Light tells the driver and front
passenger when the Passenger Advanced
Front Air Bag is activated. The Passenger Air
Bag ENABLE (ON) Indicator Light will illu -
minate to show that the Passenger
Advanced Front Air Bag will deploy during an
impact that requires air bag deployment.
NEVER assume the Passenger Advanced
Front Air Bag is activated unless the
Passenger Air Bag ENABLE (ON) Indicator
Light is illuminated.
DISABLING (OFF) The Passenger Advanced
Front Air Bag
To DISABLE (OFF) 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:
WARNING!
If any of the above conditions occur,
indicating there is an issue with the
Passenger Air Bag Indicator Light, the
Passenger Advanced Front Air Bag will
remain in the last selected state
(DISABLED or ENABLED).
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.
Children 12 years or younger should
always ride buckled up in the rear seat of
a vehicle with a rear seat.
WARNING! (Continued)
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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).
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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).
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