2023 JEEP GLADIATOR gas type

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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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.
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SAFETY309
vehicle damage — for example, some pole
collisions, truck underrides, and angle offset
collisions.
On the other hand, depending on the type and
location of impact, front air bags may deploy in
crashes with little vehicle front-end damage but
that produce a severe initial deceleration.
Because air bag sensors measure vehicle
deceleration over time, vehicle speed and damage
by themselves are not good indicators of whether
or not an air bag should have deployed.
Seat belts are necessary for your protection in all
collisions, and also are needed to help keep you in
position, away from an inflating air bag.
When the Occupant Restraint Controller (ORC)
detects a collision requiring the front air bags, it
signals the inflator units. A large quantity of
non-toxic gas is generated to inflate the front air
bags.
The steering wheel hub trim cover and the upper
passenger side of the instrument panel separate
and fold out of the way as the air bags inflate to
their full size. The front air bags fully inflate in less
time than it takes to blink your eyes. The front air
bags then quickly deflate while helping to restrain
the driver and front passenger.
Occupant Classification System (OCS) —
Front Passenger Seat
The Occupant Classification System (OCS) is part
of a Federally regulated safety system for this
vehicle. It is designed to activate or deactivate the
Passenger Advanced Front Air Bag depending on
the occupant’s seated weight. It is designed to
deactivate the Passenger Advanced Front Air Bag
for an unoccupied seat and for occupants whose
seated weight classifies them in a category other
than a properly seated adult. This could be a child,
teenager, or even an adult.
The Occupant Classification System (OCS)
Consists Of The Following:
Occupant Restraint Controller (ORC)
Occupant Classification Module (OCM) and
Sensor located in the front passenger seat
Passenger Air Bag Disabled (PAD) Indicator
Light – an amber light located on the overhead
sports bar
Air Bag Warning Light
Passenger Seat Belt
Occupant Classification Module (OCM) And Sensor
The Occupant Classification Module (OCM) is
located underneath the front passenger seat. The
Sensor is located beneath the passenger seat
cushion foam. Any weight on the seat will be
sensed by the Sensor. The OCM uses input from the Sensor to determine the front passenger’s
most probable classification. The OCM
communicates this information to the ORC. The
ORC uses the classification to determine whether
it should activate or deactivate the Passenger
Advanced Front Air Bag. In order for the OCS to
operate as designed, it is important for the front
passenger to be seated properly and properly
wearing the seat belt. Properly seated passengers
are:
Sitting upright.
Facing forward.
Sitting in the center of the seat with their feet
comfortably on or near the floor.
Sitting with their back against the seat back and
the seat back in an upright position.

Seated Properly
6

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364SERVICING AND MAINTENANCE
(Continued)
CHECKING OIL LEVEL
To ensure proper engine lubrication, the engine oil
must be maintained at the correct level. Check the
oil level at regular intervals, such as every fuel
stop. The best time to check the engine oil level is
about five minutes after a fully warmed up engine
is shut off.
Checking the oil while the vehicle is on level ground
will improve the accuracy of the oil level readings.
There are four possible dipstick types:
Crosshatched zone.
Crosshatched zone marked SAFE.
Crosshatched zone marked with MIN at the low
end of the range and MAX at the high end of the
range.
Crosshatched zone marked with dimples at the
MIN and the MAX ends of the range.
NOTE:Always maintain the oil level within the crosshatch
markings on the dipstick.
Adding 1 qt (1 L) of oil when the reading is at the
low end of the dipstick range will raise the oil level
to the high end of the range marking.
ADDING WASHER FLUID
The fluid reservoir is located in the engine
compartment. Be sure to check the fluid level at
regular intervals. Fill the reservoir with windshield
washer solvent only (not radiator antifreeze). When
refilling the washer fluid reservoir, take some
washer fluid and apply it to a cloth or towel and
wipe clean the wiper blades; this will help blade
performance.
To prevent freeze-up of your windshield washer
system in cold weather, select a solution or mixture
that meets or exceeds the temperature range of
your climate. This rating information can be found
on most washer fluid containers.
MAINTENANCE-FREE BATTERY
Your vehicle is equipped with a maintenance-free
battery. You will never have to add water, and
periodic maintenance is not required.
CAUTION!
Overfilling or underfilling the crankcase will
cause aeration or loss of oil pressure. This could
damage your engine.
WARNING!
Commercial windshield washer solvents are
flammable. They could ignite and burn you. Care
must be exercised when filling or working around
the washer solution.
WARNING!
Battery fluid is a corrosive acid solution and
can burn or even blind you. Do not allow
battery fluid to contact your eyes, skin, or
clothing. Do not lean over a battery when
attaching clamps. If acid splashes in eyes or
on skin, flush the area immediately with large
amounts of water Úpage 343.
Battery gas is flammable and explosive. Keep
flame or sparks away from the battery. Do not
use a booster battery or any other booster
source with an output greater than 12 Volts.
Do not allow cable clamps to touch each
other.
Battery posts, terminals, and related accesso -
ries contain lead and lead compounds. Wash
hands after handling.

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366SERVICING AND MAINTENANCE
American Petroleum Institute (API)
Approved Engine Oil
These symbols mean that the oil has been certified
by the API. The manufacturer only recommends API
trademark oils.
The API Starburst trademark certifies
0W-20, 0W-30 and 5W-30 engine oils.
The API Donut trademark certifies 0W-40
and 5W-40 engine oil.
Synthetic Engine Oils
Your engine was designed for synthetic engine oils,
only use synthetic API approved engine oils.
Synthetic engine oils which do not have both the
correct API trademark and the correct SAE viscosity
grade numbers should not be used.
Materials Added To Engine Oil
The manufacturer strongly recommends against
the addition of any additives (other than leak
detection dyes) to the engine oil. Engine oil is an
engineered product and its performance may be
impaired by supplemental additives.
Disposing Of Used Engine Oil And Oil
Filters
Care should be taken in disposing of used engine
oil and oil filters from your vehicle. Used oil and oil
filters, indiscriminately discarded, can present a
problem to the environment. Contact an
authorized dealer, service station, or governmental
agency for advice on how and where used oil and
oil filters can be safely discarded in your area.
ENGINE OIL FILTER
The engine oil filter should be replaced with a new
filter at every engine oil change.
Engine Oil Filter Selection
A full-flow type disposable oil filter should be used
for replacement. The quality of replacement filter
varies considerably. We recommend using a
Mopar® engine oil filter, if a Mopar® engine oil
filter is unavailable only use filters that meet or
exceed SAE/USCAR-36 Filter performance
requirements.
ENGINE AIR CLEANER FILTER
For the proper maintenance intervals see
Úpage 354 for gas engines or Ú page 358 for
diesel engines.
NOTE:Be sure to follow the “Severe Duty Conditions”
maintenance interval if applicable.
CAUTION!
Do not use chemical flushes in your engine oil as
the chemicals can damage your engine. Such
damage is not covered by the New Vehicle
Limited Warranty.
WARNING!
The air induction system (air cleaner, hoses,
etc.) can provide a measure of protection in the
case of engine backfire. Do not remove the air
induction system (air cleaner, hoses, etc.) unless
such removal is necessary for repair or mainte -
nance. Make sure that no one is near the engine
compartment before starting the vehicle with
the air induction system (air cleaner, hoses, etc.)
removed. Failure to do so can result in serious
personal injury.
CAUTION!
All air entering the engine intake must be
filtered. The abrasive particles in unfiltered air
will cause rapid wear to engine components.
Many aftermarket performance air filter
elements do not adequately filter the air
entering the engine. Use of such filters can
severely damage your engine.

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SERVICING AND MAINTENANCE379
Coolant Level
The coolant bottle provides a quick visual method
for determining that the coolant level is adequate.
With the engine in the off and cold, the level of the
engine coolant (antifreeze) in the bottle should be
between the ranges indicated on the bottle.
The radiator normally remains completely full, so
there is no need to remove the radiator/coolant
pressure cap unless checking for engine coolant
freeze point or replacing coolant. Advise your
service attendant of this. As long as the engine
operating temperature is satisfactory, the coolant
only needs to be checked once a month.
When additional engine coolant is needed to
maintain the proper level, only OAT coolant that
meets the requirements of FCA Material Standard
MS.90032 should be added to the coolant bottle.
Do not overfill.
Cooling System Notes
NOTE:When the vehicle is stopped after a few miles/kilo -
meters of operation, you may observe vapor
coming from the front of the engine compartment.
This is normally a result of moisture from rain,
snow, or high humidity accumulating on the
radiator and being vaporized when the thermostat
opens, allowing hot engine coolant (antifreeze) to
enter the radiator. If an examination of your engine compartment
shows no evidence of radiator or hose leaks, the
vehicle may be safely driven. The vapor will soon
dissipate.
Do not overfill the coolant expansion bottle.
Check the freezing point of the coolant in the
radiator and in the coolant expansion bottle. If
determined that more engine coolant needs to
be added to the radiator, the contents of the
coolant expansion bottle must also be protected
against freezing.
If frequent engine coolant additions are
required, the cooling system should be pressure
tested for leaks.
Maintain engine coolant concentration at a
minimum of 50% OAT coolant (conforming to
MS.90032) and distilled water for proper corro
-
sion protection of your engine which contains
aluminum components.
Make sure that the coolant expansion bottle
overflow hoses are not kinked or obstructed.
Keep the front of the radiator clean. With air
conditioning, keep the front of the condenser
clean.
Do not change the thermostat for Summer or
Winter operation. If replacement is ever neces -
sary, install ONLY the correct type thermostat. Other designs may result in unsatisfactory
engine system performance, poor gas mileage,
and increased emissions.
CHARGE AIR COOLER — INTER-COOLER
(D
IESEL ENGINE)
The charge air cooler is positioned in front of the
radiator and the air conditioner condenser. Air
enters the engine through the air cleaner and
passes through the turbocharger, where it is
pressurized. This pressurized air rapidly reaches
high temperature. The air is then directed through
a hose to the charge air cooler and through
another hose to the intake manifold of the engine.
This cooling process enables more efficient
burning of fuel resulting in fewer emissions.
To guarantee optimum performance of the system,
keep the surfaces of the charge air cooler,
condenser and radiator clean and free of debris.
Periodically check the hoses leading to and from
the charge air cooler for cracks or loose clamps
resulting in loss of pressure and reduced engine
performance.
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440
Rear Cargo Area Utility Rails
.......................... 111Rear Cross Path............................................. 290Rear Door Removal
S
................................... 32Rear ParkSense System................................ 184Rear Seats, Stadium Position.......................... 46Recreational Towing...................................... 205Shifting Into Transfer Case Neutral (N)..... 206Shifting Out Of Transfer Case Neutral (N).. 207Reformulated Gasoline.................................. 419Refrigerant.................................................... 373Registering SiriusXM Guardian...................... 259Release, Hood............................................... 109Reminder, Seat Belt...................................... 300Remote Control Starting System........................................... 20Remote Features, Door Lock/Unlock.. 265, 272Remote Features, Horn And Lights................266Remote Features, Starting.................. 265, 274Remote Keyless EntryArm The Alarm............................................. 23Disarm The Alarm........................................ 23Programming Additional Key Fobs.............. 17Remote Sound System (Radio) Control......... 233Remote Start (Diesel)...................................... 22Remote Start (Gas).......................................... 20Remote StartingExit Remote Start Mode.............................. 21Uconnect Customer Programmable Features.................................................. 21Uconnect Settings....................................... 21
Remote Starting System........................... 20, 22Removable Doors..................................... 28, 32Front............................................................ 28Rear............................................................. 32Removing The Hard Top
S
............................ 98Removing The Soft Top
S
............................. 92Replacement Bulbs...................................... 392Replacement Keys........................................... 17Replacement Tires........................................ 404Reporting Safety Defects.............................. 431Restraints, Child........................................... 318Restraints, Head.............................................. 48Roadside Assistance............................ 266, 272Roll Over Warning............................................ 10Roof Type Carrier.......................................... 115Rotation, Tires.............................................. 409
S
Safety........................................................... 232Safety Checks Inside Vehicle........................ 329Safety Checks Outside Vehicle..................... 330Safety Defects, Reporting............................. 431Safety Features............................................. 232Safety Information, Tire................................ 395Safety Tips.................................................... 328Safety, Exhaust Gas...................................... 331Satellite Radio.............................................. 235Saved Radio Stations................................... 240Schedule, Maintenance....................... 353, 357Seat Belt Reminder....................................... 134
Seat Belts............................................ 300, 329Adjustable Shoulder Belt.......................... 303Adjustable Upper Shoulder Anchorage..... 303Adjustable Upper Shoulder Belt Anchorage............................................ 303Automatic Locking Retractor (ALR)........... 304Child Restraints........................................ 318Energy Management Feature................... 304Extender................................................... 304Front Seat........................................ 300, 302Inspection................................................. 329Lap/Shoulder Belt Operation.................... 302Lap/Shoulder Belt Untwisting................... 303Lap/Shoulder Belts................................... 300Operating Instructions.............................. 302Pregnant Women...................................... 304Pretensioners........................................... 304Rear Seat.................................................. 300Reminder...................... 134, 140, 141, 300Seat Belt Extender.................................... 304Seat Belt Pretensioner.............................. 304Untwisting Procedure................................ 303Seat Belts Maintenance................................ 416Seats................................................................43Adjustment..................................................43Heated.........................................................47Height Adjustment.......................................44Rear Folding................................................43Tilting...........................................................43

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441
Security Alarm
................................................. 23Arm The System.......................................... 23Disarm The System..................................... 23Selec - Speed Control.......................... 141, 285Selection Of Coolant (Antifreeze)...................424Send & Go........................................... 267, 273Sentry Key (Immobilizer).................................. 17Sentry Key Replacement................................. 17Service Assistance......................................... 428Service Contract............................................ 430Service Manuals............................................ 431Settings, Audio.............................................. 240Shifting.......................................................... 155Automatic Transmission.................. 155, 157Manual Transmission................................ 153Transfer Case, Shifting Into Transfer Case Neutral (N)......................... 139, 206Transfer Case, Shifting Out OfTransfer Case Neutral (N)........... 139, 207Shoulder Belts............................................... 300Side Step Removal........................................ 207Signals, Turn............................... 330, 394, 395Sirius Satellite Radio..................................... 235Favorites................................................... 238Replay....................................................... 237SiriusXM Satellite RadioBrowse in SXM.......................................... 238Favorites................................................... 238Replay....................................................... 237Smart Watch.................................................. 271
Snow Chains (Tire Chains)............................ 408Snow Tires.................................................... 406Soft Top.................................................... 82, 88Soft Top Windows............................................ 88SOS Call............................................... 261, 272Spare Tires................................. 338, 406, 407SpecificationsFuel (Gasoline)......................................... 424Oil............................................................. 424Speed ControlCancel...................................................... 175Resume.................................................... 175Speed Control (Cruise Control)..................... 173Starting................................................ 144, 147Automatic Transmission.................. 144, 148Button......................................................... 18Cold Weather............................................ 146Engine Block Heater................................. 148Engine Fails To Start................................. 147Manual Transmission............................... 144Remote........................................................ 20Starting And Operating.................................. 144Starting Procedures............................. 144, 147Starting Procedures (Diesel Engines).. 139, 147Steering........................................................... 42Power.............................................. 133, 168Tilt Column.................................................. 42Wheel, Heated............................................. 42Wheel, Tilt.................................................... 42
Steering WheelVoice Recognition........................................50Steering Wheel Audio Controls...................... 233Steering Wheel Mounted Sound System....... 233Stolen Vehicle Assistance.................... 268, 273Stop/Start......................... 137, 140, 169, 171Storage..................................................... 68, 88Behind Rear Seat........................................70Storage, Vehicle..................................... 67, 411Store Radio Presets...................................... 240Storing Your Vehicle...................................... 411Stuck, Freeing............................................... 349Sunrider® For Hard Top................................ 101Sway Bar DisconnectElectronic......................................... 139, 166Sway Control, Trailer..................................... 286Synthetic Engine Oil...................................... 366System, Remote Starting.................................20
T
Tailgate......................................................... 110Telescoping Steering Column...........................42Temperature Control, Automatic (ATC).............67Three-Position Tailgate.................................. 110Tilt Steering Column.........................................42Tire And Loading Information Placard........... 400Tire Markings................................................ 396Tire Safety Information.................................. 395Tire Types...................................................... 405
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