2023 JEEP GLADIATOR ECU

142GETTING TO KNOW YOUR INSTRUMENT PANEL
If any of these systems require service, the OBD II
system will turn on the Malfunction Indicator Light
(MIL). It will also store diagnostic 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.
ONBOARD DIAGNOSTIC SYSTEM
(OBD II) C
YBERSECURITY
Your vehicle is required to have an 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 Ú page 214.
EMISSIONS INSPECTION AND
MAINTENANCE PROGRAMS
In some localities, it may be a legal requirement to
pass an inspection of your vehicle's emissions
control system. Failure to pass could prevent
vehicle registration. For states and/or provinces that require
an Inspection and Maintenance (I/M),
this check verifies the Malfunction
Indicator Light (MIL) is functioning and is
not on when the engine is running, and that the
OBD II system is ready for testing.
The OBD II system may not be ready if your vehicle
was recently serviced, recently had a depleted
battery or a battery replacement. If the OBD II
system 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 position, 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 Malfunction
Indicator Light (MIL) symbol come on as part of
a normal bulb check.
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 damage
and power loss will soon occur. Immediate
service is required.
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 vehicle control could
occur that may result in an accident
involving serious injury or death.
Access, or allow others to access, infor -
mation stored in your vehicle systems,
including personal information.

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156STARTING AND OPERATING
(Continued)
IGNITION PARK INTERLOCK
This vehicle is equipped with an Ignition Park
Interlock system which requires the transmission
to be in PARK before the ignition can be turned to
the OFF position. This helps the driver avoid
inadvertently leaving the vehicle without placing
the transmission in PARK. This system also locks
the transmission in PARK whenever the ignition is
in the OFF position.
NOTE:The transmission is NOT locked in PARK when the
ignition is in the ACC position (even though the
engine will be off). Ensure that the transmission is
in PARK, and the ignition is OFF (not in ACC
position) before exiting the vehicle.
Your vehicle could move and injure you and
others if it is not in PARK. Check by trying to
move the transmission gear selector out of
PARK with the brake pedal released. Make
sure the transmission is in PARK before
exiting the vehicle.
The transmission may not engage PARK if the
vehicle is moving. Always bring the vehicle to a
complete stop before shifting to PARK, and
verify that the transmission gear position indi -
cator solidly indicates PARK (P) without
blinking. Ensure that the vehicle is completely
stopped, and the PARK position is properly
indicated, before exiting the vehicle.
It is dangerous to shift out of PARK or
NEUTRAL if the engine speed is higher than
idle speed. If your foot is not firmly pressing
the brake pedal, the vehicle could accelerate
quickly forward or in reverse. You could lose
control of the vehicle and hit someone or
something. Only shift into gear when the
engine is idling normally and your foot is firmly
pressing the brake pedal.
WARNING!
Unintended movement of a vehicle could
injure those in or near the vehicle. As with all
vehicles, you should never exit a vehicle while
the engine is running. Before exiting a vehicle,
always come to a complete stop, then apply
the parking brake, shift the transmission into
PARK, and turn the ignition OFF. When the
ignition is in the OFF position, the transmis -
sion is locked in PARK, securing the vehicle
against unwanted movement.
When exiting the vehicle, always make sure
the ignition is in the OFF position, remove the
key fob from the vehicle, and lock the vehicle.
Never leave children alone in a vehicle, or with
access to an unlocked vehicle. Allowing chil -
dren to be in a vehicle unattended is
dangerous for a number of reasons. A child or
others could be seriously or fatally injured.
Children should be warned not to touch the
parking brake, brake pedal or the transmis -
sion gear selector.
Do not leave the key fob in or near the vehicle
(or in a location accessible to children), and do
not leave the ignition in the ACC or ON/RUN
position. A child could operate power
windows, other controls, or move the vehicle.
WARNING!CAUTION!
Shift into or out of PARK or REVERSE only after
the vehicle has come to a complete stop.
Do not shift between PARK, REVERSE,
NEUTRAL, or DRIVE when the engine is above
idle speed.
Before shifting into any gear, make sure your
foot is firmly pressing the brake pedal.

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158STARTING AND OPERATING
(Continued)
(Continued)
PARK (P)
This range supplements the parking brake by
locking the transmission. The engine can be
started in this range. Never attempt to use PARK
while the vehicle is in motion. Apply the parking
brake when exiting the vehicle in this range.
When parking on a hill, apply the parking brake
before shifting the transmission to PARK. As an
added precaution, turn the front wheels toward the
curb on a downhill grade and away from the curb
on an uphill grade.
When exiting the vehicle, always:
Apply the parking brake
Shift the transmission into PARK
Turn the ignition off
Remove the key fob from the vehicle
NOTE:On four-wheel drive vehicles, be sure that the
transfer case is in a drive position.
WARNING!
Never use the PARK position as a substitute
for the parking brake. Always apply the
parking brake fully when exiting the vehicle to
guard against vehicle movement and possible
injury or damage.
Your vehicle could move and injure you and
others if it is not in PARK. Check by trying to
move the transmission gear selector out of
PARK with the brake pedal released. Make
sure the transmission is in PARK before
exiting the vehicle.
The transmission may not engage PARK if the
vehicle is moving. Always bring the vehicle to a
complete stop before shifting to PARK, and
verify that the transmission gear position indi
-
cator solidly indicates PARK (P) without
blinking. Ensure that the vehicle is completely
stopped, and the PARK position is properly
indicated, before exiting the vehicle.
It is dangerous to shift out of PARK or
NEUTRAL if the engine speed is higher than
idle speed. If your foot is not firmly pressing
the brake pedal, the vehicle could accelerate
quickly forward or in reverse. You could lose
control of the vehicle and hit someone or
something. Only shift into gear when the
engine is idling normally and your foot is firmly
pressing the brake pedal.
WARNING!
Unintended movement of a vehicle could
injure those in or near the vehicle. As with all
vehicles, you should never exit a vehicle while
the engine is running. Before exiting a vehicle,
always come to a complete stop, then apply
the parking brake, shift the transmission into
PARK, and turn the ignition OFF. When the
ignition is in the OFF position, the transmis -
sion is locked in PARK, securing the vehicle
against unwanted movement.
When exiting the vehicle, always make sure
the ignition is in the OFF position, remove the
key fob from the vehicle, and lock the vehicle.
Never leave children alone in a vehicle, or with
access to an unlocked vehicle. Allowing chil -
dren to be in a vehicle unattended is
dangerous for a number of reasons. A child or
others could be seriously or fatally injured.
Children should be warned not to touch the
parking brake, brake pedal or the transmis -
sion gear selector.
Do not leave the key fob in or near the vehicle
(or in a location accessible to children), and do
not leave the ignition in the ACC or ON/RUN
position. A child could operate power
windows, other controls, or move the vehicle.
WARNING!

23_JT_OM_EN_USC_t.book Page 158

196STARTING AND OPERATING
This label contains the month and year of
manufacture, Gross Vehicle Weight Rating
(GVWR), front and rear Gross Axle Weight Rating
(GAWR), and Vehicle Identification Number (VIN). A
Month-Day-Hour (MDH) number is included on this
label and indicates the Month, Day and Hour of
manufacture. The bar code that appears on the
bottom of the label is your VIN.
Gross Vehicle Weight Rating (GVWR)
The GVWR is the total permissible weight of your
vehicle including driver, passengers, vehicle,
options and cargo. The label also specifies
maximum capacities of front and rear Gross Axle
Weight Rating (GAWR). Total load must be limited
so GVWR on front and rear GAWR are not
exceeded.
Payload
The payload of a vehicle is defined as the allowable
load weight a truck can carry, including the weight
of the driver, all passengers, options and cargo.
Gross Axle Weight Rating (GAWR)
The GAWR is the maximum permissible load on the
front and rear axles. The load must be distributed
in the cargo area so that the GAWR of each axle is
not exceeded.
Each axle GAWR is determined by the components
in the system with the lowest load carrying capacity
(axle, springs, tires or wheels). Heavier axles or
suspension components sometimes specified by purchasers for increased durability does not
necessarily increase the vehicle's GVWR.
Tire Size
The tire size on the Vehicle Certification Label
represents the actual tire size on your vehicle.
Replacement tires must be equal to the load
capacity of this tire size.
Rim Size
This is the rim size that is appropriate for the tire
size listed.
Inflation Pressure
This is the cold tire inflation pressure for your
vehicle for all loading conditions up to full GAWR.
Curb Weight
The curb weight of a vehicle is defined as the total
weight of the vehicle with all fluids, including
vehicle fuel, at full capacity conditions, and with no
occupants or cargo loaded into the vehicle. The
front and rear curb weight values are determined
by weighing your vehicle on a commercial scale
before any occupants or cargo are added.
Loading
The actual total weight and the weight of the front
and rear of your vehicle at the ground can best be
determined by weighing it when it is loaded and
ready for operation.
The entire vehicle should first be weighed on a
commercial scale to ensure that the GVWR has not
been exceeded. The weight on the front and rear of
the vehicle should then be determined separately
to be sure that the load is properly distributed over
the front and rear axle. Weighing the vehicle may
show that the GAWR of either the front or rear axles
has been exceeded but the total load is within the
specified GVWR. If so, weight must be shifted from
front to rear or rear to front as appropriate until the
specified weight limitations are met. Store the
heavier items down low and be sure that the
weight is distributed equally. Stow all loose items
securely before driving.
Improper weight distributions can have an adverse
effect on the way your vehicle steers and handles
and the way the brakes operate.
WARNING!
Do not load your vehicle any heavier than the
GVWR or the maximum front and rear GAWR. If
you do, parts on your vehicle can break, or it can
change the way your vehicle handles. This could
cause you to lose control. Overloading can
shorten the life of your vehicle.

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202STARTING AND OPERATING
(Continued)
TRAILER AND TONGUE WEIGHT
Never exceed the maximum tongue weight
stamped on your bumper or trailer hitch.
Weight Distribution

Consider the following items when computing the
weight on the rear axle of the vehicle:
The tongue weight of the trailer
The weight of any other type of cargo or equip -
ment put in or on your vehicle
The weight of the driver and all passengers
NOTE:Remember that everything put into or on the trailer
adds to the load on your vehicle. Also, additional
factory-installed options or dealer-installed options
must be considered as part of the total load on
your vehicle. Refer to the Tire And Loading Infor -
mation Placard for the maximum combined weight
of occupants and cargo for your vehicle.
TOWING REQUIREMENTS
To promote proper break-in of your new vehicle
drivetrain components, the following guidelines
are recommended:
WARNING!
Improper towing can lead to a collision. Follow
these guidelines to make your trailer towing as
safe as possible:
Make certain that the load is secured in the
trailer and that it will not shift during travel.
When trailering cargo that is not fully secured,
dynamic load shifts can occur that may be
difficult for the driver to control. You could lose
control of your vehicle and have a collision.
When hauling cargo, or towing a trailer, do not
overload your vehicle or trailer. Overloading
can cause a loss of control, poor performance,
or damage to brakes, axle, engine, transmis -
sion, steering, suspension, chassis structure,
or tires.
Safety chains must always be used between
your vehicle and trailer. Always connect the
chains to the frame or hook retainers of the
vehicle hitch. Cross the chains under the
trailer tongue and allow enough slack for
turning corners.
Vehicles with trailers should not be parked on
a grade. When parking, apply the parking
brake on the tow vehicle. Put the tow vehicle
transmission in PARK. Always block or "chock"
the trailer wheels.
GCWR must not be exceeded.
Total weight must be distributed between the
tow vehicle and the trailer such that the
following four ratings are not exceeded:
GVWR
GTW
GAWR
Tongue weight rating for the trailer hitch
utilized
CAUTION!

Do not tow a trailer at all during the first
500 miles (805 km) the new vehicle is driven.
The engine, axle or other parts could be
damaged.
Then, during the first 500 miles (805 km) that a
trailer is towed, do not drive over 50 mph
(80 km/h) and do not make starts at full
throttle. This helps the engine and other parts
of the vehicle wear in at the heavier loads.

WARNING!

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208STARTING AND OPERATING
3. After all bolts and nuts have been removed, pull the side step assembly off of the vehicle.
4. To reinstall the side steps align the studs to the body side holes and fasten all nuts on all four
brackets. Then secure all four bolts to the
underbody. Repeat the reassembly procedure
for the other side.
Bumper End Cap Removal — If Equipped
The end caps on your vehicle’s front bumper can
be removed by following the steps below:
NOTE:Bumper end caps are removable on steel bumpers
only.

1. Loosen the two bolts that retain the GAWR bracket (Bolts #1 and #2) to the end cap
using a T45 Torx bit screw driver. Do not
remove the bolts.

Bolt #1 Bolt #2

2. Remove the remaining eight bolts.
3. Gently remove the end cap from the vehicle and store it where it will not get damaged.
4. Repeat this procedure on the other side.
The Basics Of Off-Road Driving
You will encounter many types of terrain driving
off-road. You should be familiar with the terrain
and area before proceeding. There are many types
of surface conditions: hard-packed dirt, gravel,
rocks, grass, sand, mud, snow and ice. Every
surface has a different effect on your vehicle's
steering, handling and traction. Controlling your
vehicle is one of the keys to successful off-road
driving, so always keep a firm grip on the steering
wheel and maintain a good driving posture. Avoid
sudden accelerations, turns or braking. In most
cases, there are no road signs, posted speed limits or signal lights. Therefore, you will need to use your
own good judgment on what is safe and what is
not. When on a trail, you should always be looking
ahead for surface obstacles and changes in
terrain. The key is to plan your future driving route
while remembering what you are currently driving
over.
NOTE:It is recommended that the Stop/Start system be
disabled during off-road use.
When To Use 4L Range
When off-road driving, shift into 4L for additional
traction and control on slippery or difficult terrain,
ascending or descending steep hills, and to
increase low speed pulling power. This range
should be limited to extreme situations such as
deep snow, mud, steep inclines, or sand where
WARNING!
Always wear your seat belt and firmly tie down
cargo. Unsecured cargo can become projectiles
in an off-road situation.
CAUTION!
Never park your vehicle over dry grass or other
combustible materials. The heat from your
vehicle exhaust system could cause a fire.

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214
MULTIMEDIA
UCONNECT SYSTEMS
For detailed information about your Uconnect
4C/4C NAV With 8.4-inch Display system, refer to
your Uconnect Owner’s Manual Supplement.
NOTE:Uconnect screen images are for illustration
purposes only and may not reflect exact software
for your vehicle.
CYBERSECURITY
Depending on applicability, your vehicle may be
able to send or receive information from a wired or
wireless network. This information allows systems
and features in your vehicle to function properly.Your vehicle may be equipped with certain security
features to reduce the risk of unauthorized and
unlawful access to vehicle systems and wireless
communications. Vehicle software technology
continues to evolve over time and FCA US LLC,
working with its suppliers, evaluates and takes
appropriate steps as needed. As always, if you
experience unusual behavior, contact an
authorized dealer immediately, Ú
page 428, or
refer to your Uconnect Owner’s Manual
Supplement for additional contact information.
The risk of unauthorized and unlawful access to
your vehicle systems may still exist, even if the
most recent version of vehicle software (such as
Uconnect software) is installed.
NOTE:To help further improve user experience, features,
stability, etc., and minimize the potential risk of a
security breach, vehicle owners should routinely
check www.driveuconnect.com (US Residents) or
www.driveuconnect.ca (Canadian Residents) to
learn about available Uconnect software updates.
WARNING!
ONLY insert trusted media devices/compo -
nents into your vehicle. Media of unknown
origin could possibly contain malicious soft -
ware, and if installed in your vehicle, it may
increase the possibility for vehicle systems to
be breached.
As always, if you experience unusual vehicle
behavior, contact an authorized dealer imme -
diately.

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232MULTIMEDIA
DRAG & DROP MENU BAR
The Uconnect features and services in the main
menu bar are easily customized for your
preference. Simply follow these steps:

Uconnect 4 With 7-inch Display Drag & Drop

1. Press the Apps button to open the App screen.
2. Press and hold, then drag the selected app to
replace an existing shortcut in the main menu
bar.
NOTE:This feature is only available if the vehicle is in
PARK.
SAFETY AND GENERAL INFORMATION
Safety Guidelines
Please read this manual carefully before using the
system. It contains instructions on how to use the
system in a safe and effective manner.
Do NOT attach any object to the touchscreen.
Doing so can result in damage to the touchscreen.
Please read and follow these safety precautions.
Failure to do so may result in injury or property
damage.
Become familiar with the Uconnect features and
applications in this vehicle before you drive on
the roadway so using Uconnect will be more
intuitive and will not require prolonged viewing
of the screen while you are driving.
When driving, looking at the touchscreen should
only be done by a glance when safe to do so. If
prolonged viewing of the screen is required,
choose a safe and secure location where you
can pull over and park safely to do so.
Feature Description
Controls — If EquippedPress the Controls button to access vehicle-specific features like heated seats
and steering wheel.
Apps Press the Apps button to access a list of the available Mobile apps.
Climate Press the Climate button to enter Climate Mode and access the climate
control functions Ú
page 61.
WARNING!
ALWAYS obey traffic laws and pay attention to
the road. Your complete attention is always
required while driving to maintain safe control of
your vehicle. Only use and interact with the
features and applications when it is safe to do
so. Failure to follow these warnings can result in
a collision and death or serious personal injury.

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