2023 JEEP WRANGLER warning light

144STARTING AND OPERATING
4H PART TIME/4H AUTO TO 4L OR 4L TO 4H
PART TIME/4H AUTO
With the vehicle rolling at 1 to 3 mph (2 to 5 km/h), shift
an automatic transmission into NEUTRAL (N), or press the
clutch pedal on a manual transmission. While the vehicle
is coasting at 1 to 3 mph (2 to 5 km/h), shift the transfer case lever firmly to the desired position. Do not pause with
the transfer case in N (Neutral). Once the shift is
completed, place the automatic transmission into DRIVE
or release the clutch pedal on a manual transmission.
NOTE:Shifting into or out of 4L is possible with the vehicle
completely stopped; however, difficulty may occur due to
the mating teeth not being properly aligned. Several
attempts may be required for clutch teeth alignment and
shift completion to occur. The preferred method is with the
vehicle rolling at 1 to 3 mph (2 to 5 km/h). Avoid attempting to engage or disengage 4L with the vehicle
moving faster than 1 to 3 mph (2 to 5 km/h).
TRAC-LOK REAR AXLE — IF EQUIPPED
The Trac-Lok rear axle provides a constant driving force to
both rear wheels and reduces wheel spin caused by the
loss of traction at one driving wheel. If traction differs
between the two rear wheels, the differential automatically proportions the usable torque by providing
more torque to the wheel that has traction.
Trac-Lok is especially helpful during slippery driving
conditions. With both rear wheels on a slippery surface, a
slight application of the accelerator will supply maximum
traction.
AXLE LOCK (TRU-LOK) FRONT AND
R
EAR — IF EQUIPPED
The AXLE LOCK switch is located on the instrument panel
(to the right of the steering column).

Axle Lock Switch Panel

This feature will only activate when the following
conditions are met:
 Ignition in RUN position, vehicle in 4L.
 Vehicle speed should be 10 mph (16 km/h) or less.
 Both right and left wheels on axle are at the same
speed.
To activate the system, push the AXLE LOCK switch down
to lock the rear axle only (the “REAR ONLY” will illuminate),
push the switch up to lock the front axle and rear axle (the
“FRONT + REAR” will illuminate). When the rear axle is
locked, pushing the bottom of switch again will lock or
unlock the front axle.
NOTE:The indicator lights will flash until the axles are fully locked
or unlocked.
To unlock the axles, push the AXLE LOCK OFF button.
Axle Lock will disengage if the vehicle is taken out of 4L, or
the ignition switch is turned to the OFF position.
The Axle Lock disengages at speeds above 30 mph
(48 km/h), and will automatically re-lock once vehicle
speed is less than 10 mph (16 km/h).
AXLE LOCK (TRU-LOK) REAR ONLY —
I
F EQUIPPED
The rear axle may be locked in 4H if the proper conditions
are met.
WARNING!
Failure to engage a transfer case position completely
can cause transfer case damage or loss of power and
vehicle control. You could have a collision. Do not drive
the vehicle unless the transfer case is fully engaged.
WARNING!
On vehicles equipped with a limited-slip differential,
never run the engine with one rear wheel off the
ground. The vehicle may drive through the rear wheel
remaining on the ground and cause you to lose control
of your vehicle.
WARNING!
This mode is intended for off-highway or off-road use
only and should not be used on any public roadways.

23_JL_OM_EN_USC_t.book Page 144

STARTING AND OPERATING145
The AXLE LOCK switch is located on the instrument panel
(to the right of the steering column).

Axle Lock Switch Panel

This feature will only activate when the following
conditions are met:
Ignition in RUN position, vehicle in 4H.
 The vehicle must be in Off Road+ active
Úpage 146.
 Vehicle must be in ESC “Full Off” mode Úpage 246.
 Vehicle must not be actively in a high wheel slip or tight
cornering condition.
To activate the system, push the AXLE LOCK switch down
to lock the rear axle only (“REAR ONLY” will illuminate).
To unlock the rear axle, push the AXLE LOCK OFF button.
Axle Lock will disengage if the vehicle is taken out of 4H,
Off Road+ is turned off by the driver, ESC “Full Off” is
exited, or the ignition switch is turned to the OFF position.
NOTE:The indicator lights will flash until the rear axle is fully
locked or unlocked. The rear Axle Lock system may temporarily disengage the
rear locker under some conditions.
If this occurs, the rear axle will automatically re-lock as
soon as the system allows.
ELECTRONIC SWAY BAR DISCONNECT —
I
F EQUIPPED
Your vehicle may be equipped with an electronic
disconnecting stabilizer/sway bar. This system allows
greater front suspension travel in off-road situations.
This system is controlled by the SWAY BAR switch located
on the instrument panel (to the right of the steering
column).

SWAY BAR Switch

Push the SWAY BAR switch to activate the system. Push
the switch again to deactivate the system. The Sway Bar
Indicator Light (located in the instrument cluster) will
illuminate when the bar is disconnected. The Sway Bar
Indicator Light will flash during activation transition, or when activation conditions are not met. The stabilizer/
sway bar should remain in on-road mode during normal
driving conditions.
To disconnect the stabilizer/sway bar, shift to either 4H or
4L and push the SWAY BAR switch to obtain the off-road
position
Úpage 140. The Sway Bar Indicator Light will
flash until the stabilizer/sway bar has been fully
disconnected.
NOTE:The stabilizer/sway bar may be torque locked due to left
and right suspension height differences. This condition is
due to driving surface differences or vehicle loading. In
order for the stabilizer/sway bar to disconnect/reconnect,
the right and left halves of the bar must be aligned. This
alignment may require that the vehicle be driven onto level
ground or rocked from side to side.
WARNING!
Ensure the stabilizer/sway bar is reconnected before
driving on hard surfaced roads or at speeds above
18 mph (29 km/h); a disconnected stabilizer/sway bar may contribute to the loss of vehicle control, which
could result in serious injury. Under certain
circumstances, the front stabilizer/sway bar enhances
vehicle stability and assists with vehicle control. The
system monitors vehicle speed and will attempt to
reconnect the stabilizer/sway bar at speeds over
18 mph (29 km/h). This is indicated by a flashing or solid Sway Bar Indicator Light. Once vehicle speed is
reduced below 14 mph (22 km/h), the system will once
again attempt to return to off-road mode.
4

23_JL_OM_EN_USC_t.book Page 145

146STARTING AND OPERATING
To return to on-road mode, push the SWAY BAR switch
again.
OFF ROAD+ — IF EQUIPPED

OFF ROAD+ Switch

When activated, Off Road+ is designed to improve the
user experience when using specific Off Road driving
modes. To activate Off Road+, push the OFF ROAD+ switch
in the switch bank. The vehicle’s performance will improve
depending on which Four-Wheel Drive (4WD) mode is
activated.
NOTE:Off Road+ will not function in 2H mode. If the button is
pushed while in 2H mode, the cluster display will show the
message “Off Road+ Unavailable Shift to 4WD”.
When Off Road+ is active, the following features will
activate:
The Off Road+ telltale will illuminate in the instrument
cluster display
 A mode-specific message will display the instrument
cluster display
 Off-Road Pages will launch on the radio head-unit if
selected in radio settings
 The Off-Road Camera will launch if selected in radio
settings
Once in Off Road+, the vehicle will begin to behave in
different ways depending on the 4WD mode in use. The
following enhancements will occur when using Off Road+.
4L
 Engine/Transmission Calibration: Rock Crawl and
controllability focus, change in shifting schedule when
rock crawling, pedal calibration shifted to de-gain and
low range, operates at lower vehicle speeds
 Traction Control: Aggressive brake lock differential
tuning at slower speed or FIRST gear
 Off Road+: Recall the last status between ignition
cycles
4H
 Engine/Transmission Calibration: Improved sand
performance/wheel slip focus, change in shift
schedule for sport mode, pedal calibration set to
aggressive, operates at elevated vehicle speeds 
Traction Control: High wheel speed, slip tuning brake
lock differential with no engine management
 Electronic Stability Control: ESC Off with unlimited
speed
 Off Road+: Will default to OFF between ignition cycles
Cruise Control and Adaptive Cruise Control (ACC) will not
function while using Off Road+. A dedicated cluster
message will display indicating this if either feature is
activated while in Off Road+.
If the ESC OFF button is pushed while in Off Road+, the
following will occur on the vehicle:
 Push of the ESC OFF Button: Traction Control will turn
off, but Stability Control will remain active.
 Hold the ESC OFF Button for five seconds: Traction
Control and Stability Control will turn off.
ELECTRO-HYDRAULIC POWER STEERING
Your vehicle is equipped with an Electro-Hydraulic Power
Steering system that provides increased vehicle response
and ease of maneuverability. The system adapts to
different driving conditions. If the Electro-Hydraulic Power
Steering system experiences a fault that prevents it from
providing power steering assist, then the system will
provide mechanical steering capability.
WARNING!

If the stabilizer/sway bar will not return to on-road mode,
the Sway Bar Indicator Light will flash in the instrument
cluster and vehicle stability may be reduced. Do not
attempt to drive the vehicle over 18 mph (29 km/h).
Driving faster than 18 mph (29 km/h) with a discon -
nected stabilizer/sway bar may contribute to the loss of
vehicle control, which could result in serious injury.

CAUTION!
Extreme steering maneuvers may cause the electrically
driven pump to reduce or stop power steering
assistance in order to prevent damage to the system.
Normal operation will resume once the system is
allowed to cool.

23_JL_OM_EN_USC_t.book Page 146

STARTING AND OPERATING147
If the “SERVICE POWER STEERING” message and a
flashing icon are displayed on the instrument cluster
screen, it indicates that the vehicle needs to be taken to
an authorized dealer for service. It is likely the vehicle has
lost power steering assistance
Úpage 108.
If the “POWER STEERING HOT” message and an icon are
displayed on the instrument cluster screen, it indicates
that extreme steering maneuvers may have occurred,
which caused an over temperature condition in the power
steering system. You will lose power steering assistance
momentarily until the over temperature condition no
longer exists. Once driving conditions are safe, pull over
and let vehicle idle for a few moments until the light turns
off
Úpage 108.
NOTE:
 Even if power steering assistance is no longer opera -
tional, it is still possible to steer the vehicle. Under
these conditions there will be a substantial increase in
steering effort, especially at very low vehicle speeds
and during parking maneuvers.
 If the condition persists, see an authorized dealer for
service.
STOP/START SYSTEM — AUTOMATIC
TRANSMISSION (IF EQUIPPED)
The Engine Stop/Start (ESS) function is designed to
reduce fuel consumption. The system will stop the engine
automatically during a vehicle stop if the required
conditions are met. Releasing the brake pedal or pressing
the accelerator pedal will automatically restart the engine. ESS vehicles have been upgraded with a heavy-duty
starter, enhanced battery, and other upgraded engine
parts, to handle the additional engine starts. Vehicles
equipped with eTorque contain a heavy-duty motor
generator and an additional hybrid electric battery to store
energy from vehicle deceleration for use on engine startup
after a stop as well as providing launch torque assist.
NOTE:It is recommended that Stop/Start system be disabled
during off-road use.
Secondary Battery
Your vehicle may be equipped with a secondary battery
used to power the Stop/Start system and the 12 Volt
vehicle electrical system. The secondary battery is located
behind the wheel well for the front passenger wheel.

Battery Locations

AUTOSTOP MODE
The Stop/Start feature is enabled after every driver
ignition start. At that time, the system will go into STOP/
START READY and if all other conditions are met, can go
into a STOP/START AUTOSTOP ACTIVE Autostop mode.
To Activate The Autostop Mode, The Following Must Occur:

The system must be in STOP/START READY state. A
STOP/START READY message will be displayed in the
instrument cluster display within the Stop/Start
section
Úpage 108.
 The vehicle must be completely stopped.
 The shifter must be in a forward gear and the brake
pedal pressed.
1 — Primary Battery
2 — Secondary Battery
WARNING!
 Vehicles with the Stop/Start system will be equipped
with two batteries. Both the main and the supple -
mental batteries must be disconnected to
completely de-energize the 12 Volt electrical system.
 Serious injury or death could result if you do not
disconnect both batteries. To learn how to properly
disconnect, see an authorized dealer.
4

23_JL_OM_EN_USC_t.book Page 147

STARTING AND OPERATING149
TO MANUALLY TURN ON THE STOP/
S
TART SYSTEM
Push the Stop/Start OFF switch (located on the switch
bank). The light on the switch will turn off.
SYSTEM MALFUNCTION
If there is a malfunction in the Stop/Start system, the
system will not shut down the engine. A “SERVICE STOP/
START SYSTEM” message and a yellow Stop/Start telltale
will appear in the Instrument Cluster Display
Úpage 108.
If the “SERVICE STOP/START SYSTEM” message appears
in the instrument cluster display, have the system
checked by an authorized dealer.
If a malfunction occurs during an autostop, the vehicle
may not auto start and will need a key start.
STOP/START SYSTEM — MANUAL
TRANSMISSION (IF EQUIPPED)
The Engine Stop/Start (ESS) function is designed to
reduce fuel consumption. The system will stop the engine
automatically during a vehicle stop if the required
conditions are met. Pressing the clutch pedal will
automatically restart the vehicle.
ESS vehicles have been upgraded with a heavy-duty
starter, enhanced battery, and other upgraded engine
parts, to handle the additional engine starts. Vehicles
equipped with eTorque contain a heavy duty motor generator and an additional hybrid electric battery to store
energy from vehicle deceleration for use on engine startup
after a stop as well as providing launch torque assist.
NOTE:It is recommended that Stop/Start be disabled during
off-road use.
Secondary Battery
Your vehicle may be equipped with a secondary battery
used to power the Stop/Start system and the 12 Volt
vehicle electrical system. The secondary battery is located
behind the wheel well for the front passenger wheel.

Battery Locations

AUTOSTOP MODE
The Stop/Start feature is enabled after every driver
ignition start. It will remain in STOP/START NOT READY
until you drive forward with a vehicle speed greater than
5 mph (8 km/h). At that time, the system will go into
STOP/START READY and if all other conditions are met,
can go into an STOP/START AUTO STOP ACTIVE mode.
To Activate The STOP/START AUTOSTOP ACTIVE Mode,
The Following Must Occur:
 The system must be in STOP/START READY state. A
STOP/START READY message will be displayed in the
instrument cluster
Úpage 108.
 Vehicle speed must be less than 2 mph (3 km/h).
 The gear selector must be in the NEUTRAL position and
the clutch pedal must be fully released.
1 — Primary Battery
2 — Secondary Battery
WARNING!

Vehicles with the Stop/Start system will be equipped
with two batteries. Both the main and the supple -
mental batteries must be disconnected to
completely de-energize the 12 Volt electrical system.
 Serious injury or death could result if you do not
disconnect both batteries. To learn how to properly
disconnect, see an authorized dealer.
4

23_JL_OM_EN_USC_t.book Page 149

STARTING AND OPERATING151
TO MANUALLY TURN ON THE STOP/
S
TART SYSTEM
Push the Stop/Start OFF switch (located on the switch
bank). The light on the switch will turn off.
SYSTEM MALFUNCTION
If there is a malfunction in the Stop/Start system, the
system will not shut down the engine. A “SERVICE STOP/
START SYSTEM” message and a yellow Stop/Start telltale
will appear in the Instrument Cluster Display
Úpage 108.
If the “SERVICE STOP/START SYSTEM” message appears
in the instrument cluster display, have the system
checked by an authorized dealer.
If a malfunction occurs during an autostop, the vehicle
may not auto start and will need a key start.
CRUISE CONTROL SYSTEMS — IF EQUIPPED
Your vehicle may be equipped with the Cruise Control
system, or the Adaptive Cruise Control (ACC) system:
 Cruise Control will keep your vehicle at a constant
preset speed.
 Adaptive Cruise Control (ACC) will adjust the vehicle
speed up to the preset speed to maintain a distance
with the vehicle ahead.
NOTE:
In vehicles equipped with ACC, if ACC is not enabled,
Fixed Speed Cruise Control will not detect vehicles
directly ahead of you. Always be aware of the feature
selected. 
Only one Cruise Control feature can operate at a time.
For example, if Fixed Speed Cruise Control is enabled,
Adaptive Cruise Control will be unavailable, and vice
versa.
CRUISE CONTROL
When engaged, the Cruise Control takes over accelerator
operations at speeds greater than 20 mph (32 km/h).
The Cruise Control buttons are located on the right side of
the steering wheel.

Cruise Control Buttons

To Activate
Push the on/off button to activate the Cruise Control. The
cruise indicator light in the instrument cluster display will
illuminate. To turn the system off, push the on/off button
a second time. The cruise indicator light will turn off. The
system should be turned off when not in use.
1 — SET (+)/Accel
2 — CANC/Cancel
3 — SET (-)/Decel
4 — On/Off
5 — RES/Resume
WARNING!
Cruise Control can be dangerous where the system
cannot maintain a constant speed. Your vehicle could
go too fast for the conditions, and you could lose control
and have an accident. Do not use Cruise Control in
heavy traffic or on roads that are winding, icy,
snow-covered or slippery.
WARNING!
Leaving the Cruise Control system on when not in use is
dangerous. You could accidentally set the system or
cause it to go faster than you want. You could lose
control and have an accident. Always leave the system
off when you are not using it.
4

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152STARTING AND OPERATING
To Set A Desired Speed
Turn the Cruise Control on.
NOTE:The vehicle should be traveling at a steady speed and on
level ground before pushing the SET (+) or SET (-) button.
When the vehicle has reached the desired speed, push
the SET (+) or SET (-) button and release. Release the
accelerator and the vehicle will operate at the selected
speed.
To Vary The Speed Setting
To Increase Or Decrease The Set Speed
When the Cruise Control is set, you can increase speed by
pushing the SET (+) button, or decrease speed by pushing
the SET (-) button.
U.S. Speed (mph)
 Pushing the SET (+), or SET (-) button once will result in
a 1 mph speed adjustment. Each subsequent tap of
the button results in an adjustment of 1 mph.
 If the button is continually pushed, the set speed will
continue to adjust in 5 mph increments until the button
is released, then the new set speed will be established.
Metric Speed (km/h)
 Pushing the SET (+), or SET (-) button once will result in
a 1 km/h speed adjustment. Each subsequent tap of
the button results in an adjustment of 1 km/h.
 If the button is continually pushed, the set speed will
continue to adjust in 10 km/h increments until the
button is released, then the new set speed will be
established.
To Accelerate For Passing
While the Cruise Control is set, press the accelerator to
pass as you would normally. When the pedal is released,
the vehicle will return to the set speed.
USING CRUISE CONTROL ON HILLS
The transmission may downshift on hills to maintain the
vehicle set speed.
The Cruise Control system maintains speed up and down
hills. A slight speed change on moderate hills is normal.
On steep hills, a greater speed loss or gain may occur so it
may be preferable to drive without Cruise Control.
To Resume Speed
To resume a previously set speed, push the RES button
and release. Resume can be used at any speed above
20 mph (32 km/h).
To Deactivate
A tap on the brake pedal, pushing the CANC (cancel)
button, or normal brake pressure while slowing the vehicle
will deactivate the Cruise Control without erasing the set
speed from memory. The following conditions will also deactivate the Cruise
Control without erasing the set speed from memory:

Vehicle parking brake is applied
 Stability event occurs
 Gear selector is moved out of DRIVE
 Engine overspeed occurs
 Clutch pedal is pressed (manual transmission only)
 Vehicle is operating at a low RPM (manual transmis -
sion only)
Pushing the on/off button or placing the ignition in the OFF
position erases the set speed from memory.
ADAPTIVE CRUISE CONTROL (ACC)
Adaptive Cruise Control (ACC) increases the driving
convenience provided by Cruise Control while traveling on
highways and major roadways. However, it is not a safety
system and not designed to prevent collisions. The Cruise
Control function performs differently if your vehicle is not
equipped with ACC
Úpage 151.
NOTE:
If the ACC sensor detects a vehicle ahead, ACC will
apply limited braking or accelerate (not to exceed the
original set speed) automatically to maintain a preset
following distance, while matching the speed of the
vehicle ahead.
 Any chassis/suspension or tire size modifications to
the vehicle will affect the performance of the Adaptive
Cruise Control and Forward Collision Warning system.
 Fixed Speed Cruise Control (ACC not enabled) will not
detect vehicles directly ahead of you. Always be aware
of the feature selected
Úpage 381.
WARNING!
Cruise Control can be dangerous where the system
cannot maintain a constant speed. Your vehicle could
go too fast for the conditions, and you could lose control
and have an accident. Do not use Cruise Control in
heavy traffic or on roads that are winding, icy,
snow-covered or slippery.

23_JL_OM_EN_USC_t.book Page 152

156STARTING AND OPERATING
U.S. Speed (mph)
Pushing the SET (+), or SET (-) button once will result in
a 1 mph speed adjustment. Each subsequent tap of
the button results in an adjustment of 1 mph.
 If the button is continually pushed, the set speed will
continue to adjust in 5 mph increments until the button
is released. The new set speed is reflected in the instru -
ment cluster display.
Metric Speed (km/h)
 Pushing the SET (+), or SET (-) button once will result in
a 1 km/h speed adjustment. Each subsequent tap of
the button results in an adjustment of 1 km/h.
 If the button is continually pushed, the set speed will
continue to adjust in 10 km/h increments until the
button is released. The new set speed is reflected in
the instrument cluster display.
NOTE:When you override and push the SET (+) button or SET (-)
buttons, the new set speed will be the current speed of the
vehicle.
When ACC Is Active
 When you use the SET (-) button to decelerate, if the
engine’s braking power does not slow the vehicle suffi -
ciently to reach the set speed, the brake system will
automatically slow the vehicle.
 The ACC system applies the brake down to a full stop
when following the vehicle in front. If your vehicle
follows the vehicle in front to a standstill, your vehicle
will release the brakes two seconds after coming to a
full stop.
 The ACC system maintains set speed when driving
uphill and downhill. However, a slight speed change on moderate hills is normal. In addition, downshifting may
occur while climbing uphill or descending downhill. This
is normal operation and necessary to maintain set
speed. When driving uphill and downhill, the ACC
system will cancel if the braking temperature exceeds
normal range (overheated).
Setting The Following Distance In ACC
The specified following distance for ACC can be set by
varying the distance setting between four bars (longest),
three bars (long), two bars (medium) and one bar (short).
Using this distance setting and the vehicle speed, ACC
calculates and sets the distance to the vehicle ahead. This
distance setting displays in the instrument cluster display.

Distance Settings

To increase the distance setting, push the Distance
Setting Increase button and release. Each time the button
is pushed, the distance setting increases by one bar
(longer).
To decrease the distance setting, push the Distance
Setting Decrease button and release. Each time the
button is pushed, the distance setting decreases by one
bar (shorter).
If there is no vehicle ahead, the vehicle will maintain the
set speed. If a slower moving vehicle is detected in the
same lane, the instrument cluster displays the ACC Set
With Target Light. The system will then adjust vehicle
speed automatically to maintain the distance setting,
regardless of the set speed.
The vehicle will then maintain the set distance until:

The vehicle ahead accelerates to a speed above the
set speed
 The vehicle ahead moves out of your lane or view of the
sensor
 The distance setting is changed
 The system disengages
Úpage 154
The maximum braking applied by ACC is limited; however,
the driver can always apply the brakes manually, if
necessary.
NOTE:The brake lights will illuminate whenever the ACC system
applies the brakes.
A Proximity Warning will alert the driver if ACC predicts that
its maximum braking level is not sufficient to maintain the
set distance. If this occurs, a visual alert “BRAKE!” will
1 — Longest Distance Setting (Four Bars)
2 — Medium Distance Setting (Two Bars)
3 — Long Distance Setting (Three Bars)
4 — Short Distance Setting (One Bar)

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