2023 JEEP GLADIATOR engine

168STARTING AND OPERATING
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 Two-Wheel Drive
High (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 Instru -
ment Cluster Display
Off Road pages will launch on the radio
head-unit (if equipped)
The Off Road Camera will launch (if equipped)
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 differen -
tial tuning at slower speed or FIRST gear
OFF ROAD+: Recall the last status between igni -
tion 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 manage -
ment
Electronic Stability Control: ESC Off with unlim -
ited 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: Trac -
tion Control and Stability Control will turn off.
ELECTRO-HYDRAULIC POWER STEERING
Your vehicle is equipped with an Electro-Hydraulic
Power Steering system that will provide increased
vehicle response and ease of maneuverability. 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.

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STARTING AND OPERATING169
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 Ú page 121.
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 Ú page 121.
NOTE:
Even if power steering assistance is no longer
operational, it is still possible to steer the
vehicle. Under these conditions there will be a
substantial increase in steering effort, espe -cially 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 developed
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.
NOTE:It is recommended that the 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
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.
1 — Primary Battery
2 — Secondary Battery
WARNING!
Vehicles with the Stop/Start system will be
equipped with two batteries. Both the main
and the supplemental 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.
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170STARTING AND OPERATING
The Stop/Start feature is enabled after every
normal customer engine start. At that time, the
system will go into STOP/START READY.
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 Ú page 121.
The vehicle must be completely stopped.
The gear selector must be in a forward gear and
the brake pedal pressed.
The engine will shut down, the tachometer will
move to the zero position and the Stop/Start
telltale will illuminate indicating you are in
Autostop. Customer settings will be maintained
upon return to an engine-running condition.
POSSIBLE REASONS THE ENGINE DOES
N
OT AUTOSTOP

Prior to engine shut down, the system will check
many safety and comfort conditions to see if they
are fulfilled. Detailed information about the
operation of the Stop/Start system may be viewed
in the instrument cluster display Stop/Start Screen.
In the following situations, the engine will not stop:

Driver’s seat belt is not buckled
Driver’s door is not closed
Battery temperature is too warm or cold
Battery charge is low
The vehicle is on a steep grade
Cabin heating or cooling is in process and an
acceptable cabin temperature has not been
achieved
HVAC is set to full defrost mode at a high blower
speed
HVAC is set to MAX A/C
Engine has not reached normal operating
temperature
Engine or exhaust temperature is too high
The transmission is not in a forward gear
Hood is open
Transfer case is in 4L or N (Neutral)
Brake pedal is not pressed with sufficient pres -
sure
Accelerator pedal input
Vehicle speed threshold has not been achieved
from previous Autostop
Steering angle is beyond threshold
ACC is on and speed is set
Vehicle is at high altitude
System fault is present It may be possible for the vehicle to be driven
several times without the Stop/Start system going
into a STOP/START READY state under more
extreme conditions of the items listed above.
TO START THE ENGINE WHILE IN
A
UTOSTOP MODE
While in a forward gear, the engine will start when
the brake pedal is released or the throttle pedal is
pressed. The transmission will automatically
re-engage upon engine restart.
Conditions That Will Cause The Engine To Start
Automatically While In Autostop Mode:

The transmission selector is moved out of DRIVE

To maintain cabin temperature comfort
Actual cabin temperature is significantly
different than temperature set on Auto HVAC
HVAC is set to full defrost mode
HVAC system temperature or fan speed is
manually adjusted
Battery voltage drops too low
Stop/Start OFF switch is pushed
A Stop/Start system error occurs
Stop/Start Autostop Active time exceeds five
minutes
Transfer case is in 4L or N (Neutral)
Steering wheel is turned beyond threshold

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STARTING AND OPERATING171
TO MANUALLY TURN OFF THE STOP/
S
TART SYSTEM

Stop/Start OFF Switch

Push the Stop/Start OFF switch (located on the
switch bank). The light on the switch will illuminate.
The “Stop/Start OFF” message will appear in
instrument cluster display within the Stop/Start
section, and the autostop function will be disabled
Ú page 121.
NOTE:The Stop/Start system will reset itself back to an
ON condition every time the ignition is turned off
and back on.
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 Ú page 121.
If the “SERVICE STOP/START SYSTEM” message
appears in the instrument cluster display, have the
system checked by an authorized dealer.
STOP/START SYSTEM — MANUAL
TRANSMISSION (IF EQUIPPED)
The Engine Stop/Start (ESS) function is developed
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.
NOTE:It is recommended that the 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

1 — Primary Battery
2 — Secondary Battery
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172STARTING AND OPERATING
AUTOSTOP MODE
The Stop/Start feature is enabled after every
normal customer engine 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 AUTOSTOP 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
Ú
page 121.

Vehicle speed must be less than 2 mph
(3 km/h).
The gear selector must be in the NEUTRAL posi -
tion and the clutch pedal must be fully released. The engine will shut down,
the tachometer will fall
to the Stop/Start position, the STOP/START
AUTOSTOP ACTIVE message will appear, and the
heater/air conditioning (HVAC) air flow will be
reduced.
POSSIBLE REASONS THE ENGINE DOES
N
OT AUTOSTOP
Prior to engine shut down, the system will check
many safety and comfort conditions to see if they
are fulfilled. In following situations the engine will
not stop:
Driver’s seat belt is not buckled
Outside temperature is less than 10°F (–12°C)
or greater than 109°F (43°C)
Actual cabin temperature is significantly
different than temperature set on Auto HVAC
HVAC is set to full defrost mode
Engine has not reached normal operating
temperature
Battery is discharged
When driving in REVERSE
Hood is open
Transfer case is in 4L or N (Neutral)
Driver's seat is not occupied or driver door is
open
Vehicle is at high altitude
The vehicle is on a steep grade
Forward Gear is engaged
Steering angle is beyond threshold
System fault is present
HVAC is set to MAX A/C
It may be possible for the vehicle to be driven
several times without the Stop/Start system going
into a STOP/START READY state under more
extreme conditions of the items listed above.
TO START THE ENGINE WHILE IN
A
UTOSTOP MODE
When the gear selector is in NEUTRAL, the engine
will start when the clutch pedal is pressed (does
not require complete/full pedal press). The vehicle
will go into STOP/START SYSTEM NOT READY
mode until the vehicle speed is greater than 5 mph
(8 km/h).
Conditions that will cause the engine to start
automatically while in STOP/START AUTOSTOP
ACTIVE mode, the engine will start automatically
when:
Actual cabin temperature is significantly
different than temperature set on Auto HVAC
HVAC is set to full defrost mode
Stop/Start Autostop Active time exceeds five
minutes
WARNING!
Vehicles with the Stop/Start system will be
equipped with two batteries. Both the main
and the supplemental 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.

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STARTING AND OPERATING173
Battery voltage drops too low
Vehicle is moving faster than 5 mph (8 km/h)
Stop/Start OFF switch is pressed
Transfer case is in 4L or N (Neutral)
Steering wheel is turned beyond threshold (ESS
Models Only)
TO MANUALLY TURN OFF THE STOP/
S
TART SYSTEM

Stop/Start OFF Switch

Push the Stop/Start OFF switch (located on the
switch bank). The light on the switch will illuminate.
The “Stop/Start OFF” message will appear in
instrument cluster display within the Stop/Start
section, and the Autostop function will be disabled
Ú page 121.
NOTE:The Stop/Start system will reset itself back to an
ON condition every time the ignition is turned off
and back on.
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 Ú page 121.
If the “SERVICE STOP/START SYSTEM” message
appears in the instrument cluster display, have the
system checked by an authorized dealer.
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 main -
tain 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 system 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.
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STARTING AND OPERATING175
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 soft 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 trans -
mission 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 Ú page 173.
ACC will allow you to keep Cruise Control engaged
in light to moderate traffic conditions without the
constant need to reset your speed. ACC utilizes a
radar sensor and a forward-facing camera
designed to detect a vehicle directly ahead of you
to maintain a set speed.
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 modifica -
tions to the vehicle will affect the performance
of the Adaptive Cruise Control and Forward Colli -
sion Warning system.
Fixed Speed Cruise Control (ACC not enabled)
will not detect vehicles directly ahead of you.
Always be aware of the feature selected
Ú page 432.
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.
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STARTING AND OPERATING179
Resume can be used at any speed above 20 mph
(32 km/h) when only Fixed Speed Cruise Control is
being used.
Resume can be used at any speed above 0 mph
(0 km/h) when ACC is active.
NOTE:
While in ACC mode when the vehicle comes to a
complete stop longer than two seconds, the
system will cancel. The driver will have to apply
the brakes to keep the vehicle at a standstill.
ACC cannot be resumed if there is a stationary
vehicle in front of your vehicle in close proximity.
To Vary The Speed Setting
To Increase Or Decrease The Set Speed
After setting a speed, you can increase the set
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 incre -
ments until the button is released. The new set
speed is reflected in the instrument 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 incre -
ments until the button is released. The new set
speed is reflected in the instrument cluster
display.
NOTE:When you override and push the SET (+) or SET (-)
button, 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 sufficiently 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 a vehicle in front. If your
vehicle follows a vehicle ahead to a standstill,
your vehicle brakes will release 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).
WARNING!
The Resume function should only be used if
traffic and road conditions permit. Resuming a
set speed that is too high or too low for
prevailing traffic and road conditions could
cause the vehicle to accelerate or decelerate too
sharply for safe operation. Failure to follow these
warnings can result in a collision and death or
serious personal injury.
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