2023 JEEP GLADIATOR oil level

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

23_JT_OM_EN_USC_t.book Page 7

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.

23_JT_OM_EN_USC_t.book Page 118

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

23_JT_OM_EN_USC_t.book Page 121

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

23_JT_OM_EN_USC_t.book Page 124

134GETTING TO KNOW YOUR INSTRUMENT PANEL
Oil Pressure Warning Light
This warning light will illuminate, and a
chime will sound, to indicate low engine
oil pressure. If the light and chime turn on
while driving, safely stop the vehicle and
turn off the engine as soon as possible. After the
vehicle is safely stopped, restart the engine and
monitor the Oil Pressure Warning Light. If the Oil
Pressure Warning Light is still illuminated, turn the
engine OFF and contact an authorized dealer for
further assistance. Do not operate the vehicle until
the cause is corrected. If the light is no longer
illuminated, the engine can be operated but it is
recommended to take the vehicle to an authorized
dealer as soon as possible.
Do not operate the vehicle until the cause is
corrected. This light does not indicate how much oil
is in the engine. The engine oil level must be
checked under the hood.
Oil Temperature Warning Light
This warning light will illuminate to
indicate the engine oil temperature is
high. If the light turns on while driving,
stop the vehicle and shut off the engine
as soon as possible. Wait for oil temperature to
return to normal levels.
Seat Belt Reminder Warning Light
This warning light indicates when the
driver or passenger seat belt is
unbuckled. When the ignition is first
placed in the ON/RUN or ACC/ON/RUN
position and if the driver’s seat belt is unbuckled,
a chime will sound and the light will turn on. When
driving, if the driver or front passenger seat belt
remains unbuckled, the Seat Belt Reminder Light
will flash or remain on continuously and a chime
will sound Ú page 299.
Rear Seat Belt Reminder Indicator Light —
If Equipped With A Base Instrument
Cluster
This light indicates when a rear seat belt
is unbuckled in the second row. When
the ignition is first placed in the ON/RUN
or ACC/ON/RUN position, and if a seat
belt in the second row is unbuckled, a light
corresponding to the specific seat will turn on in
the upper right portion of the instrument cluster
display, momentarily replacing the configurable
corner information. If a second row seat belt that
was buckled at the start of the trip is unbuckled,
the Rear Seat Belt Reminder Light will change from
the buckled to the unbuckled symbol, and a chime
will sound Ú page 299.
Transmission Temperature Warning
Light — If Equipped

This warning light will illuminate to warn of
a high transmission fluid temperature.
This may occur with strenuous usage such
as trailer towing. If this light turns on, stop
the vehicle and run the engine at idle or slightly
faster, with the transmission in PARK (P) or NEUTRAL
(N), until the light turns off. Once the light turns off,
you may continue to drive normally. If Manual
transmission equipped, this warning will illuminate
to warn of high clutch temperature. This may occur
with driver misuse of clutch pedal or resting foot on
the clutch pedal or partially engaging the clutch for
longer duration. If the light turns on, it will be with an
additional CLUTCH HOT message. Stop the vehicle
safely and run the engine at idle with transmission
gear in NEUTRAL (N) until the light turns off. Once the
light turns off, follow the message displayed in the
instrument cluster.

23_JT_OM_EN_USC_t.book Page 134

STARTING AND OPERATING151
NOTE:Under certain conditions the Stop/Start system
may be temporarily disabled and the engine fan
will run after the engine is turned off to protect the
engine. These conditions are under high load and
high temperature conditions.
COOLING SYSTEM TIPS — AUTOMATIC
T
RANSMISSION
To reduce the potential for engine and
transmission overheating in high ambient
temperature conditions, take the following actions:
City Driving — When stopped, shift the transmis -
sion into NEUTRAL (N) and increase engine idle
speed.
Highway Driving — Reduce your speed.
Up Steep Hills — Select a lower transmission
gear.
Air Conditioning — Turn it off temporarily.
NOTE:If the coolant temperature is too high, the A/C will
automatically turn off.
Do Not Operate The Engine With Low Oil
Pressure
If the Low Oil Pressure Warning Light turns on while
driving, stop the vehicle and shut down the engine
as soon as possible. After the vehicle is safely
stopped, restart the engine and monitor the lamp. If the lamp is still illuminated, shut the engine off,
contact an authorized dealer, and do not operate
the vehicle until the cause is corrected. If the lamp
is no longer illuminated, the engine can be
operated, but should be taken to an authorized
dealer as soon as possible for further inspection.
NOTE:Do not operate the vehicle until the cause is
corrected. This light does not show how much oil is
in the engine. The engine oil level must be checked
under the hood.
Do Not Operate The Engine With Failed
Parts
All engine failures give some warning before the
parts fail. Be on the alert for changes in
performance, sounds, and visual evidence that the
engine requires service. Some important clues are:
Engine misfiring or vibrating severely
Sudden loss of power
Unusual engine noises
Fuel, oil or coolant leaks
Sudden change, outside the normal operating
range, in the engine operating temperature
Excessive smoke
Oil pressure drop
ENGINE BREAK-IN RECOMMENDATIONS —
GASOLINE ENGINE (IF EQUIPPED)
A long break-in period is not required for the engine
and drivetrain (transmission and axle) in your
vehicle.
Drive moderately during the first 300 miles
(500 km). After the initial 60 miles (100 km),
speeds up to 50 or 55 mph (80 or 90 km/h) are
desirable.
While cruising, brief full-throttle acceleration within
the limits of local traffic laws contributes to a good
break-in. Wide-open throttle acceleration in low
gear can be detrimental and should be avoided.
The engine oil installed in the engine at the factory
is a high-quality energy conserving type lubricant.
Oil changes should be consistent with anticipated
climate conditions under which vehicle operations
will occur.
For the recommended viscosity and quality grades
see Ú page 424.
CAUTION!
If oil pressure falls to less than normal readings,
shut the engine off immediately. Failure to do so
could result in immediate and severe engine
damage.
4

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152STARTING AND OPERATING
NOTE:A new engine may consume some oil during its first
few thousand miles (kilometers) of operation. This
should be considered a normal part of the break-in
and not interpreted as a problem.
ENGINE BREAK-IN RECOMMENDATIONS —
DIESEL ENGINE (IF EQUIPPED)
The diesel engine does not require a break-in
period due to its construction. Normal operation is
allowed, providing the following recommendations
are followed:
Warm up the engine before placing it under
load.
Do not operate the engine at idle for prolonged
periods.
Use the appropriate transmission gear to
prevent engine lugging.
Observe vehicle oil pressure and temperature
indicators.
Check the coolant and oil levels frequently.
Vary throttle position at highway speeds when
carrying or towing significant weight.
NOTE:Light duty operation such as light trailer towing or
no load operation will extend the time before the
engine is at full efficiency. Reduced fuel economy
and power may be seen at this time.
The engine oil installed in the engine at the factory
is a high-quality energy conserving type lubricant.
Oil changes should be consistent with anticipated
climate conditions under which vehicle operations
will occur. For recommended viscosity and quality
grades Úpage 424. NON-DETERGENT OR
STRAIGHT MINERAL OILS MUST NEVER BE USED.
PARKING BRAKE
Before exiting the vehicle, make sure that the
parking brake is fully applied. Also, be certain to
leave an automatic transmission in PARK, or
manual transmission in REVERSE or FIRST gear.
The parking brake lever is located in the center
console. To apply the parking brake, pull the lever
up as firmly as possible. To release the parking
brake, pull the lever up slightly, push the center
button, then lower the lever completely.
Parking Brake Lever

When the parking brake is applied with the ignition
switch ON, the Brake Warning Light in the
instrument cluster will illuminate.
NOTE:
When the parking brake is applied and the auto -
matic transmission is placed in gear, the Brake
Warning Light will flash. If vehicle speed is
detected, a chime will sound to alert the driver.
Fully release the parking brake before
attempting to move the vehicle.
This light only shows that the parking brake is
applied. It does not show the degree of brake
application.
CAUTION!
Never use Non-Detergent Oil or Straight Mineral
Oil in the engine or damage may result.

23_JT_OM_EN_USC_t.book Page 152

MULTIMEDIA271
To link your Uconnect account with Google
Assistant, follow these steps:

1. Download and install the Google Assistant app on your smart phone from the App
Store® or Google Play.

2. After installation, log in to the Google Assistant app with your Gmail ID. Verify your account by
pressing the icon in the upper right-hand
corner.
3. Press the Discover button in the bottom left corner of the screen. Enter the vehicle brand
name.
4. A prompt will appear to link your Uconnect account. Press “Link Uconnect to Google”.
5. Press “Sign In” and enter the email address and password you created when you activated
SiriusXM Guardian™. There will be additional
settings to confirm on the following screen.
6. Lastly, press “Authorize” to complete the linking process.
Now, you can ask Google Assistant to help you:
Remotely start the engine, or cancel a remote
start
Send a destination to your vehicle’s built-in
Uconnect Navigation system
Monitor vehicle vitals, such as tire pressure, fuel
level and oil life
And more!
Family Drive Alerts — If Equipped
Description
Family Drive Alerts help promote safer driving and
give you peace of mind when your loved ones are
out on the road. You can set boundary limits,
monitor driving speed, and pinpoint your vehicle’s
location any time, any place. Use the Vehicle
Branded App to set alerts:
Boundary Alert
Receive a notification the moment your vehicle
is driven either out of or into a geographic
boundary that you set.
Curfew Alert
Receive a notification when your car is being
driven outside of the curfew time.
Speed Alert
Receive a notification whenever your car
exceeds a speed limit you set.
Valet Alert
Receive a notification if and when your vehicle is
driven outside a quarter-mile radius of a valet
drop-off zone.
SmartWatch Integration — If Equipped
Description
SmartWatch Integration puts the Vehicle Branded
App right on your Apple® Watch or Android™ Wear.
To get started, follow these steps:

1. Download the Vehicle Branded App from the App Store® or Google Play.

2. Log onto the app from your smartphone using the username and password you created when
you first set up your account.
3. Make sure your watch and smartphone are connected through Bluetooth®.
4. The Vehicle Branded App should appear on your SmartWatch.
Once the app is downloaded on your SmartWatch,
you can enjoy these features:
Lock or unlock your vehicle by tapping the
remote lock button in the app and entering your
security PIN.
Remote start or stop your vehicle.
View important vehicle stats, such as fuel level,
vehicle location, tire pressure warning, and
more.
For help, refer to the Uconnect YouTube channel
for SmartWatch Integration.
5

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