2023 JEEP GLADIATOR oil

4
INSTRUMENT CLUSTER DISPLAY ...................... 121 Instrument Cluster Display Location And
Controls .......................................................... 122
Oil Life Reset — If Equipped

S
................... 122
Off Road+ Display — If Equipped .................. 123
Instrument Cluster Display Selectable
Items .............................................................. 123
Instrument Cluster Display Menu Items ...... 124
Battery Saver On, Battery Saver Mode
Message, And Electrical Load Reduction
Actions
(If Equipped) .................................................. 127
Diesel Displays .............................................. 128 Diesel Particulate Filter (DPF) Messages .... 128Fuel System Messages ................................. 130
WARNING LIGHTS AND MESSAGES ................. 132
Red Warning Lights ....................................... 132
Yellow Warning Lights ................................... 135Yellow Indicator Lights .................................. 138
Green Indicator Lights................................... 139White Indicator Lights ................................... 140Blue Indicator Lights ..................................... 141
ONBOARD DIAGNOSTIC SYSTEM — OBD II ...... 141
Onboard Diagnostic System
(OBD II) Cybersecurity ................................... 142
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS .......................................................... 142
STARTING AND OPERATING
STARTING THE ENGINE — GASOLINE ENGINE
(IF EQUIPPED) ...................................................... 144
Manual Transmission — If Equipped ........... 144Automatic Transmission —
If Equipped .................................................... 144
Normal Starting ............................................ 144
AutoPark ........................................................ 145Extreme Cold Weather
(Below –22°F Or −30°C) ............................ 146
Extended Park Starting ................................. 146
If Engine Fails To Start ................................. 147
After Starting ................................................. 147
STARTING THE ENGINE — DIESEL ENGINE
(IF EQUIPPED) ...................................................... 147
Automatic Transmission ............................... 148
Extreme Cold Weather .................................. 148
Normal Starting ............................................. 148Starting Fluids ............................................... 149
NORMAL OPERATION — DIESEL ENGINE ......... 149
Cold Weather Precautions ............................ 149
Engine Idling .................................................. 150
Stopping The Engine ..................................... 150
Cooling System Tips — Automatic
Transmission ................................................. 151
ENGINE BREAK-IN RECOMMENDATIONS —
GASOLINE ENGINE (IF EQUIPPED) ................... 151 ENGINE BREAK-IN RECOMMENDATIONS —
DIESEL ENGINE (IF EQUIPPED) .......................... 152
PARKING BRAKE ................................................. 152
MANUAL TRANSMISSION — IF EQUIPPED ....... 153
Shifting........................................................... 154
Downshifting.................................................. 155
AUTOMATIC TRANSMISSION —
IF EQUIPPED ......................................................... 155
Ignition Park Interlock................................... 156
Brake/Transmission Shift Interlock (BTSI)
System .......................................................... 1578–Speed Automatic Transmission .............. 157
Gear Ranges .................................................. 157
FOUR–WHEEL DRIVE OPERATION ................... 161
Four-Position Transfer Case —
If Equipped .................................................... 161
Five-Position Transfer Case —
If Equipped .................................................... 163
Trac-Lok Rear Axle — If Equipped ................ 165Axle Lock (Tru-Lok) Front And Rear —
If Equipped ................................................... 165
Axle Lock (Tru-Lok) Rear Only —
If Equipped ................................................... 166
Electronic Sway Bar Disconnect —
If Equipped ................................................... 166
OFF ROAD+ — If Equipped ............................ 168
ELECTRO-HYDRAULIC POWER STEERING ....... 168

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7
TOWING A DISABLED VEHICLE .......................... 350 Four–Wheel Drive Models ............................ 351
Without The Key Fob ..................................... 351
Emergency Tow Hooks —
If Equipped .................................................... 351
ENHANCED ACCIDENT RESPONSE SYSTEM
(EARS) .................................................................. 352
EVENT DATA RECORDER (EDR) ......................... 352
SERVICING AND MAINTENANCE
SCHEDULED SERVICING — GASOLINE
ENGINE ................................................................. 353
Maintenance Plan ......................................... 354
SCHEDULED SERVICING — DIESEL ENGINE .... 357
Maintenance Plan — Diesel Fuel Up To
B5 Biodiesel................................................... 358Additional Maintenance — B6 To B20
Biodiesel ........................................................ 361
ENGINE COMPARTMENT .................................... 362
3.6L Gasoline Engine ................................... 3623.0L Diesel Engine ........................................ 363
Checking Oil Level ......................................... 364
Adding Washer Fluid ..................................... 364
Maintenance-Free Battery ............................ 364
Pressure Washing ......................................... 365 VEHICLE MAINTENANCE..................................... 365
Engine Oil ....................................................... 365
Engine Oil Filter ............................................. 366Engine Air Cleaner Filter ............................... 366
Draining Fuel/Water Separator Filter —
Diesel Engine ................................................. 368
Fuel Filter Replacement — Diesel Engine .... 369
Priming If The Engine Has Run Out Of
Fuel — Diesel Engine .................................... 370
Intervention Regeneration Strategy —
Message Process Flow ................................ 371Diesel Exhaust Fluid ..................................... 371
Accessory Drive Belt Inspection ................... 372Air Conditioner Maintenance........................ 372
Body Lubrication ........................................... 374Windshield Wiper Blades.............................. 374Exhaust System ............................................ 376
Cooling System .............................................. 377
Charge Air Cooler — Inter-Cooler
(Diesel Engine) .............................................. 379
Brake System ............................................... 380
Front/Rear Axle Fluid ................................... 380Transfer Case ............................................... 381
Manual Transmission — If Equipped............ 381
Automatic Transmission —
If Equipped .................................................... 381
Fuses ............................................................. 382Bulb Replacement ........................................ 392 TIRES ..................................................................... 395
Tire Safety Information ................................. 395
Tires — General Information ......................... 401
Tire Types....................................................... 405Spare Tires — If Equipped ............................ 406
Wheel And Wheel Trim Care......................... 407
Snow Traction Devices ................................. 408
Tire Rotation Recommendations ................. 409
DEPARTMENT OF TRANSPORTATION
UNIFORM TIRE QUALITY GRADES .................... 410
Treadwear...................................................... 410
Traction Grades ............................................. 410Temperature Grades..................................... 410
STORING THE VEHICLE ....................................... 411
BODYWORK .......................................................... 411
Protection From Atmospheric Agents .......... 411
Body And Underbody Maintenance ............. 412
Preserving The Bodywork ............................. 412
INTERIORS ........................................................... 414
Carpet Safety Information ............................ 414
Carpet Removal............................................. 415Seats And Fabric Parts ................................. 416
Plastic And Coated Parts .............................. 417
Leather Surfaces........................................... 417
Glass Surfaces ............................................. 417

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11
CAMPERS
This vehicle is NOT recommended for slide-in camper applications.
VEHICLE MODIFICATIONS/ALTERATIONS
SYMBOL GLOSSARY
Some car components have colored labels with symbols indicating
precautions to be observed when using this component. It is important to
follow all warnings when operating your vehicle. See below for the definition of
each symbol Úpage 132.
NOTE:Warning and Indicator lights are different based upon equipment options and
current vehicle status. Some telltales are optional and may not appear.
WARNING!
Any modifications or alterations to this vehicle could seriously affect its
roadworthiness and safety and may lead to a collision resulting in serious
injury or death.
Red Warning LightsAir Bag Warning Light Úpage 132
Brake Warning Light Úpage 132
Battery Charge Warning Light
Úpage 133
Door Open Warning Light Úpage 133
Electric Power Steering (EPS) Fault Warning Light Úpage 133
Electronic Throttle Control (ETC) Warning Light Úpage 133
Engine Coolant Temperature Warning Light Úpage 133
Hood Open Warning Light Úpage 133
Oil Pressure Warning Light Úpage 134
Oil Temperature Warning Light Úpage 134
Red Warning Lights1

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118GETTING TO KNOW YOUR INSTRUMENT PANEL
Use this QR code to access your
digital experience.
INSTRUMENT CLUSTER
D
ESCRIPTIONS

1.
Tachometer
Indicates the engine speed in revolutions
per minute (RPM x 1000).
2. Temperature Gauge
The temperature gauge shows engine
coolant temperature. Any reading within the
normal range indicates that the engine
cooling system is operating satisfactorily.
The gauge pointer will likely indicate a
higher temperature when driving in hot
weather, up mountain grades, or when
towing a trailer. It should not be allowed to
exceed the upper limits of the normal oper -
ating range. 3.
Instrument Cluster Display
The instrument cluster display features a
driver interactive display Ú page 121.
4. Fuel Gauge
The pointer shows the level of fuel in the
fuel tank when the ignition switch is in the
ON/RUN position.
 The fuel pump symbol points to
the side of the vehicle where the fuel
filler door is located Ú page 191.
5. Speedometer
Indicates vehicle speed.CAUTION!
Do not operate the engine with the tachometer
pointer in the red area. Engine damage will
occur.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. It is recommended that you call an
authorized dealer for service if your vehicle
overheats.
CAUTION!
Driving with a hot engine cooling system could
damage your vehicle. If the temperature gauge
reads “H” pull over and stop the vehicle. Idle the
vehicle with the air conditioner turned off until
the pointer drops back into the normal range. If
the pointer remains on the “H”, turn the engine
off immediately and call an authorized dealer for
service.

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GETTING TO KNOW YOUR INSTRUMENT PANEL121
INSTRUMENT CLUSTER DESCRIPTIONS

1.
Tachometer
Indicates the engine speed in revolutions
per minute (RPM x 1000).
2. Temperature Gauge
The temperature gauge shows engine
coolant temperature. Any reading within the
normal range indicates that the engine
cooling system is operating satisfactorily.
The gauge pointer will likely indicate a
higher temperature when driving in hot
weather, up mountain grades, or when
towing a trailer. It should not be allowed to
exceed the upper limits of the normal oper -
ating range. 3.
Instrument Cluster Display
The instrument cluster display features a
driver interactive display Ú page 121.
4. Fuel Gauge
The pointer shows the level of fuel in the
fuel tank when the ignition switch is in the
ON/RUN position.
 The fuel pump symbol points to
the side of the vehicle where the fuel
filler door is located Ú page 191.
5. Speedometer
Indicates vehicle speed.
INSTRUMENT CLUSTER DISPLAY
Your vehicle will be equipped with an instrument
cluster display, which offers useful information to
the driver. With the ignition in the OFF mode,
opening/closing of a door will activate the display
for viewing, and display the total miles (kilometers)
in the odometer. Your instrument cluster display is
designed to display important information about
your vehicle’s systems and features. The driver
interactive display, located in the instrument
panel, indicates how systems are operating and
gives you warnings when a system, or systems,
needs your attention. The steering wheel mounted
controls allow you to scroll through and enter the
main menus and submenus. You can access the
specific information you want to make selections
and adjustments.
CAUTION!
Do not operate the engine with the tachometer
pointer in the red area. Engine damage will
occur.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. It is recommended that you call an
authorized dealer for service if your vehicle
overheats.
CAUTION!
Driving with a hot engine cooling system could
damage your vehicle. If the temperature gauge
reads “H” pull over and stop the vehicle. Idle the
vehicle with the air conditioner turned off until
the pointer drops back into the normal range. If
the pointer remains on the “H”, turn the engine
off immediately and call an authorized dealer for
service.
3

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122GETTING TO KNOW YOUR INSTRUMENT PANEL
INSTRUMENT CLUSTER DISPLAY
L
OCATION AND CONTROLS
The Instrument Cluster Display is located in the
center of the instrument cluster. The display
contains different areas of vehicle information.

Instrument Cluster Display Location

The top line where Reconfigurable Telltales,
Compass Direction, Outside Temperature, Time,
Range, Audio Info, MPG or Trip are displayed.
This also displays the Speedometer which is an
option for the upper center reconfigurable, but
is not the default. Default setting is Menu Title.
The main display area where the menus and
pop-up messages are displayed.
The lower line where telltales, menu name and
menu page are displayed.
The system allows the driver to select information
by pushing the following buttons mounted on the
steering wheel:

Instrument Cluster Display Control Buttons

Up And Down Arrow Buttons:
Using the up or down arrow button allow you
to cycle through the Main Menu Items. They allow you to change the Main Screen area
and Menu Title area.
Left
And Right Arrow Buttons:
Using the left or right arrow button allow you
to cycle through the submenu screens of the Main
menu item.
OK Button
Push the OK button to access/select the
information screens or submenu screens of a main
menu item. To reset displayed/selected features
push and hold the OK button for two seconds.
OIL LIFE RESET — IF EQUIPPED
Use this QR code to access your
digital experience.
Your vehicle may be equipped
with an engine oil change
indicator system. The “Oil Change
Required” message will display in
the instrument cluster display for
five seconds after a single chime has sounded to
indicate the next scheduled oil change interval.
The engine oil change indicator system is duty
cycle based, which means the engine oil change
interval may fluctuate, dependent upon your
personal driving style.
Unless reset, this message will continue to display
each time you place the ignition in the ON/RUN
position. To turn off the message temporarily, push
1 — Instrument Cluster Display Screen
2 — Instrument Cluster Display Controls
1 — Left Arrow Button
2 — Up Arrow Button
3 — Right Arrow Button
4 — Down Arrow Button
5 — OK Button

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GETTING TO KNOW YOUR INSTRUMENT PANEL123
and release the OK button. To reset the oil change
indicator system (after performing the scheduled
maintenance), refer to the following procedure.
Oil Life Reset

1. Without pushing the brake pedal, place the ignition in the ON/RUN mode (do not start the
engine).

2. Navigate to "Oil Life" submenu in "Vehicle Info" in the instrument cluster display.
3. Push and hold the OK button until the gauge
resets to 100%.
Secondary Method For Oil Change Reset
Procedure

1. Without pushing the brake pedal, place the ignition in the ON/RUN position (do not start
the engine).

2. Fully press the accelerator pedal, slowly, three times within ten seconds.
3. Without pushing the brake pedal, place the ignition in the OFF position.
NOTE:If the indicator message illuminates when you start
the vehicle, the oil change indicator system did not
reset. If necessary, repeat this procedure.
OFF ROAD+ DISPLAY — IF EQUIPPED
When the Off Road+ button is pushed in the switch
bank, the Instrument Cluster Display will begin to
show messages related to the feature. Depending
on the Four Wheel Drive mode in use, the
messages will differ, and after five seconds, all
messages will clear from the display. The
messages are as follows:
2H: Off Road+ Unavailable, Shift to 4WD
4H: 4WD High Off Road+ Active
4L: 4WD Low Off Road+ Active
Adaptive Cruise Control (ACC) and Cruise Control
are not available when using Off Road+. If either
option is selected, a dedicated message will
display indicating that the features are not usable
concurrently. Messages are as follows:
4H: Cruise Control — Cruise Control Unavailable
in Off Road+
4H: Adaptive Cruise Control — Adaptive Cruise
Control (ACC) Unavailable in Off Road+
4L: Cruise Control — Cruise Control Unavailable
in 4WD Low
4L: Adaptive Cruise Control — Adaptive Cruise
Control (ACC) Unavailable in 4WD Low
NOTE:The behavior of Electronic Stability Control while in
Off Road+ varies depending on the 4WD status. If
the vehicle is in 4WD High, Traction Control is auto -
matically turned off. Also, holding the ESC OFF
button for five seconds will turn off ESC. In 4WD
Low, Electronic Stability Control automatically
shuts off regardless of the Off Road Status.
INSTRUMENT CLUSTER DISPLAY
S
ELECTABLE ITEMS
The instrument cluster display can be used to view
the following main menu items:
NOTE:Depending on the vehicles options, feature
settings may vary.
Speedometer Driver Assist —
If EquippedMessages
Vehicle Info Trip Info Screen Setup
Fuel Economy Stop/Start Audio
Off Road —
If Equipped
3

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124GETTING TO KNOW YOUR INSTRUMENT PANEL
INSTRUMENT CLUSTER DISPLAY MENU
I
TEMS
NOTE:Depending on the vehicle’s options, feature
settings may vary.
Speedometer
Push and release the up or down arrow
button until the speedometer menu icon is
displayed in the instrument cluster display. Push
and release the OK button to toggle between mph
and km/h.
Vehicle Info
Push and release the up or down arrow
button until the Vehicle Info menu icon is displayed
in the instrument cluster display. Push and release
the left or right arrow button to scroll
through the information submenus and push and
release the OK button to select or reset the
resettable submenus.
Off Road — If Equipped
Push and release the up or down arrow
button until the Off Road menu icon is displayed in
the instrument cluster display. Push and release
the left or right arrow button to scroll
through the information submenus.
Drivetrain
Front Wheel Angle: displays the graphical and
numerical value of calculated average front
wheel angle from the steering wheel orientation.
Transfer Case Lock Status: displays “Lock”
graphic only during 4WD High, 4WD Auto, or
4WD Low status.
Axle Lock And Sway Bar Status (if equipped):
displays front and rear or rear only axle locker
graphic, and sway bar connection graphic with
text message (connected or disconnected).
Pitch And Roll
Displays the pitch and roll of the vehicle in the
graphic with the angle number on the screen.
NOTE:When vehicle speed becomes too high to display
the pitch and roll, “- -” will display in place of the
numbers, and the graphic will be grayed out. A
message indicating the necessary speed for the
feature to become available will also display.
Driver Assist — If Equipped
The Driver Assist menu displays the status of the
ACC system.
Push and release the up or down arrow
button until the Driver Assist menu is displayed in
the instrument cluster display.
Adaptive Cruise Control (ACC) Feature —
If Equipped
The instrument cluster display displays the current
ACC system settings. The information displayed
depends on ACC system status.
Push the ACC ON/OFF button (located on the
steering wheel) until one of the following displays
in the instrument cluster display:
Adaptive Cruise Control Off
When ACC is deactivated, the display will read
“Adaptive Cruise Control Off.”
Adaptive Cruise Control Ready
When ACC is activated but the vehicle speed
setting has not been selected, the display will read
“Adaptive Cruise Control Ready.”
Push the SET + or the SET - button (located on the
steering wheel), and the following will display in the
instrument cluster display.
Tire Pressure
Coolant Temperature
Transmission
Temperature —
Automatic
Transmission Only Oil Pressure
Oil Temperature Oil Life
Battery Voltage Diesel Exhaust Fluid
Level — If Equipped

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