2023 JEEP GLADIATOR engine 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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128GETTING TO KNOW YOUR INSTRUMENT PANEL
What to do when an electrical load reduction
action message is present (“Battery Saver On” or
“Battery Saver Mode”)
During a trip:
Reduce power to unnecessary loads if possible:
Turn off redundant lights (interior or exte -
rior)
Check what may be plugged in to power
outlets +12 Volt, 115 Volts AC, USB ports
Check HVAC settings (blower, temperature)
Check the audio settings (volume)
After a trip:
Check if any aftermarket equipment was
installed (additional lights, upfitter electrical
accessories, audio systems, alarms) and review
specifications if any (load and ignition off draw
currents).
Evaluate the latest driving cycles (distance,
driving time and parking time).
The vehicle should have service performed if
the message is still present during consecutive
trips and the evaluation of the vehicle and
driving pattern did not help to identify the cause.
DIESEL DISPLAYS
When the appropriate conditions exist, the
following messages display in the instrument
cluster display:
Exhaust Filter Nearing Full Safely Drive at
Consistent Speeds to Clear
Exhaust Filter Full – Power Reduced See Dealer
Exhaust System Service Required – See Dealer
Exhaust System – Filter XX% Full Service
Required See Dealer
Exhaust System Regeneration in Process
Continue Driving
Exhaust System – Regeneration Completed
DIESEL PARTICULATE FILTER (DPF)
M
ESSAGES
This engine meets all required diesel engine
emissions standards. To achieve these emissions
standards, your vehicle is equipped with a
state-of-the-art engine and exhaust system. These
systems are seamlessly integrated into your
vehicle and managed by the Powertrain Control
Module (PCM). The PCM manages engine combustion to allow the exhaust system’s catalyst
to trap and burn Particulate Matter (PM)
pollutants, with no input or interaction on your part.
WARNING!
A malfunctioning catalytic converter, as
previously referenced, can reach higher
temperatures than in normal operating
conditions. This can cause a fire if you drive
slowly or park over flammable substances such
as dry plants, wood, cardboard, etc. This could
result in death or serious injury to the driver,
occupants or others.
CAUTION!
The engine may be switched off even if the
warning light is on: repeated interruptions of the
regeneration process could cause an early
deterioration of engine oil. For this reason it is
always advisable to wait for the symbol to go off
before turning off the engine, following the
previously mentioned instructions. Do not
complete the DPF regeneration process when
the vehicle is stopped.

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