brake JEEP GLADIATOR 2023 Owners Manual

370SERVICING AND MAINTENANCE
5. Close the water drain valve.

Fuel Filter Assembly

6. Wipe clean the underside of the filter housing to prevent contamination from entering fuel
system during service.
7. Remove the fuel filter cap and filter from the housing using a socket. Rotate counter -
clockwise for removal.
Fuel Filter Assembly

8. Remove the used fuel filter cartridge from the cap and dispose of according to your local
regulations.
9. Wipe clean the sealing surfaces of the cap and housing. 10. Lubricate o-ring on the cap with clean engine
oil.
11. Install the new fuel filter cartridge onto the cap.
12. Insert the cap and filter into the housing with clockwise rotation, use a socket to tighten.
13. After engine start, verify the fuel filter cap does not leak.
PRIMING IF THE ENGINE HAS RUN OUT
O
F FUEL — DIESEL ENGINE

1. Add a substantial amount of fuel to the tank,
approximately 2 to 5 gal (8L to 19L).

2. Push ignition switch twice without your foot on brake to put vehicle in RUN position. This will
activate the in tank fuel pump for approxi -
mately 30 seconds. Repeat this process twice.
1 — Water Drain Valve
1 — Fuel Filter Cap
2 — Socket Adapter
CAUTION!
Take care when handling the new fuel filter to
prevent contamination from entering the fuel
system.
WARNING!
Do not open the high pressure fuel system with
the engine running. Engine operation causes
high fuel pressure. High pressure fuel spray can
cause serious injury or death.

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380SERVICING AND MAINTENANCE
(Continued)
BRAKE SYSTEM
In order to ensure brake system performance, all
brake system components should be inspected
periodically. For the proper maintenance intervals
Úpage 354.
Fluid Level Check — Brake Master Cylinder
The fluid level of the master cylinder should be
checked whenever the vehicle is serviced, or
immediately if the Brake System Warning Light is
on. If necessary, add fluid to bring level within the
designated marks on the side of the reservoir of
the brake master cylinder. Be sure to clean the top
of the master cylinder area before removing cap.
With disc brakes, fluid level can be expected to fall
as the brake pads wear. Brake fluid level should be
checked when pads are replaced. If the brake fluid
is abnormally low, check the system for leaks.
For further information Ú page 426.
FRONT/REAR AXLE FLUID
For normal service, periodic fluid level checks are
not required. When the vehicle is serviced for other
reasons the exterior surfaces of the axle assembly
should be inspected. If gear oil leakage is
suspected, inspect the fluid level.
Fluid Level Check
Lubricant should be approximately 1/8 inch
(3 mm) below the bottom edge of the oil fill hole.
NOTE:Make sure that the vehicle is level and supported
by the axles.
Adding Fluid
Add lubricant only at the fill hole and only to the
level specified above.
Selection Of Lubricant
Use only the manufacturer’s recommended fluid
Úpage 426.
WARNING!
Riding the brakes can lead to brake failure and
possibly a collision. Driving with your foot resting
or riding on the brake pedal can result in
abnormally high brake temperatures, excessive
lining wear, and possible brake damage. You
would not have your full braking capacity in an
emergency.
WARNING!
Use only manufacturer recommended brake
fluid Ú page 426. Using the wrong type of
brake fluid can severely damage your brake
system and/or impair its performance. The
proper type of brake fluid for your vehicle is
also identified on the original factory installed
hydraulic master cylinder reservoir.
To avoid contamination from foreign matter or
moisture, use only new brake fluid or fluid that
has been in a tightly closed container. Keep
the master cylinder reservoir cap secured at
all times. Brake fluid in a open container
absorbs moisture from the air resulting in a
lower boiling point. This may cause it to boil
unexpectedly during hard or prolonged
braking, resulting in sudden brake failure. This
could result in a collision.
Overfilling the brake fluid reservoir can result
in spilling brake fluid on hot engine parts,
causing the brake fluid to catch fire. Brake
fluid can also damage painted and vinyl
surfaces, care should be taken to avoid its
contact with these surfaces.
Do not allow petroleum based fluid to contam -
inate the brake fluid. Brake seal components
could be damaged, causing partial or
complete brake failure. This could result in a
collision.
WARNING!

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SERVICING AND MAINTENANCE387
F20 30 Amp Pink –Central Body Controller (CBC) 1-INTERIOR LIGHTS
F21 ––Spare*
F22 –10 Amp RedEngine Control Module (ECM)/Powertrain Control Module
(PCM)
F23 –10 Amp RedPowertrain Control Module (PCM)/Engine Control Module
(ECM)
F24 ––Spare*
F25 –10 Amp Red Module Shift By Wire (MOD_SBW)
F26 40 Amp Green –Central Body Controller (CBC) 2-EXTERIOR LIGHTS #1
F27 30 Amp Pink –Front Wipers
F28 40 Amp Green –Central Body Controller (CBC) 3-POWER LOCKS
F29 40 Amp Green –Central Body Controller (CBC) 4-EXTERIOR LIGHTS #2
F30 ––Spare*
F31 –10 Amp Red DIAGNOSTIC PORT
F32 –10 Amp RedHeating Ventilation Air Conditioning Mod (HVAC CTRL MOD)/
Steering Column Lock (SCL)/Occupant Classification Module
(OCM)/Driver Presence Detection Module (DPDM)
F33 –10 Amp RedParkTronics System (PTS)/Infrared Camera Module (IRCM)/
Airbag Disable Lamps (AIRBAG DISABLE LMPS)
F34 –10 Amp RedElectronic Stability Control (ESC)/Electric Hydraulic Power
Steering (EHPS)/Smart Bar Control Module (SBCM) WAKE UP
F35 30 Amp Pink –BRAKE VAC PMP*
Cavity Cartridge Fuse Micro Fuse Description

* If Equipped
8

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408SERVICING AND MAINTENANCE
When cleaning extremely dirty wheels, including
excessive brake dust, care must be taken in the
selection of tire and wheel cleaning chemicals and
equipment to prevent damage to the wheels.
Mopar® Wheel Treatment or Mopar® Chrome
Cleaner, or their equivalent, is recommended or
select a non-abrasive, non-acidic cleaner for
aluminum or chrome wheels.
NOTE:If you intend parking or storing your vehicle for an
extended period after cleaning the wheels with
wheel cleaner, drive your vehicle and apply the
brakes to remove the water droplets from the
brake components. This activity will remove the
red rust on the brake rotors and prevent vehicle
vibration when braking.
Dark Vapor Chrome, Black Satin Chrome, or Low
Gloss Clear Coat WheelsSNOW TRACTION DEVICES
Use of traction devices require sufficient
tire-to-body clearance. Due to limited clearance,
the following snow traction devices are
recommended. Follow these recommendations to
guard against damage:
Snow traction device must be of proper size for
the tire, as recommended by the snow traction
device manufacturer.
No other tire sizes are recommended for use
with the snow traction device.
Please follow the table below for the recom -
mended tire size, axle and snow traction device:
CAUTION!
Do not use scouring pads, steel wool, a bristle
brush, metal polishes, or oven cleaner. These
products may damage the wheel's protective
finish. Such damage is not covered by the New
Vehicle Limited Warranty. Only car wash soap,
Mopar® Wheel Cleaner or equivalent is
recommended.CAUTION!

If your vehicle is equipped with these specialty
wheels, DO NOT USE wheel cleaners, abrasives,
or polishing compounds. They will permanently
damage this finish and such damage is not
covered by the New Vehicle Limited Warranty.
HAND WASH ONLY USING MILD SOAP AND WATER
WITH A SOFT CLOTH. Used on a regular basis; this
is all that is required to maintain this finish.

Trim Level AxleTire/Wheel SizeSnow Traction Device (Maximum
Projection Beyond Tire Profile Or Equivalent)
SPORT
OVERLAND Rear
245/75R17 S Class or Autosock
RUBICON
HIGH ALTITUDE MOJAVE RearLT285/70R17C
255/70R18
275/55R20 Autosock

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414SERVICING AND MAINTENANCE
(Continued)
When washing, never use hot water or anything
stronger than a mild soap. Never use solvents
such as alcohol or harsh cleaning agents.
Always rinse thoroughly with cold water, then
wipe with a soft and slightly moist, clean cloth.
When removing frost, snow, or ice, never use a
scraper or de-icing chemicals. Use warm water
only if you must clean the window quickly.
Debris (sand, mud/dirt, dust, or salt) from
off-road driving will have an impact on plastic
retainer operation. Even normal on-road driving
and vehicle washing will eventually impact
window plastic retainer operation. To maintain
ease of use of the window plastic retainers,
each window plastic retainer should be cleaned
and lubricated regularly. Clean them with a mild
soap solution and a small brush. Cleaning prod -
ucts are available through an authorized dealer.
Never paste stickers, gummed labels or any
tape to the windows. Adhesives are hard to
remove and may damage the windows.
INTERIORS
CARPET SAFETY INFORMATION
Always use carpet designed to fit your vehicle. Only
use carpet that does not interfere with the
operation of the pedal assemblies. Only operate
the vehicle when the carpet is securely attached by
the grommets so it cannot slip out of position and
interfere with the pedal assemblies or impair safe
operation of your vehicle in other ways.
WARNING!
If operating the vehicle without carpet in place
the floor may become hot, and there is a risk
of burns.
An improperly attached, damaged, folded, or
damaged grommets may cause your carpet to
interfere with the accelerator, brake, or clutch
pedals and cause a loss of vehicle control. To
prevent SERIOUS INJURY or DEATH: ALWAYS
securely attach your carpet using the grom -
mets.
ALWAYS make sure objects cannot fall or slide
into the driver’s side floor area when the
vehicle is moving. Objects can become
trapped under accelerator, brake, or clutch
pedals and could cause a loss of vehicle
control.
NEVER place any objects under the carpet
(e.g., towels, keys, etc.). These objects could
change the position of the carpet and may
cause interference with the accelerator,
brake, or clutch pedals.
ONLY install carpet designed to fit your
vehicle. NEVER install carpet that cannot be
properly attached and secured to your vehicle.
If the carpet needs to be replaced, only use
manufacturer approved carpet for the specific
make, model, and year of your vehicle.
If the vehicle carpet has been removed and
re-installed, always properly attach carpet to
the floor and check that the floor mat
fasteners are secure to the vehicle carpet.
Fully depress each pedal to check for interfer -
ence with the accelerator, brake, or clutch
pedals then re-install the floor mats.
WARNING!

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418
TECHNICAL SPECIFICATIONS
VEHICLE IDENTIFICATION NUMBER (VIN)
The VIN is found on the left front corner of the
A-pillar, visible from outside of the vehicle through
the windshield.
Vehicle Identification Number

NOTE:It is illegal to remove or alter the VIN plate.
BRAKE SYSTEM
Your vehicle is equipped with dual hydraulic brake
systems. If either of the two hydraulic systems lose
normal capability, the remaining system will still
function. However, there will be some loss of
overall braking effectiveness. You may notice
increased pedal travel during application, greater
pedal force required to slow or stop, and potential
activation of the Brake Warning Light.
In the event power assist is lost for any reason (i.e.,
repeated brake applications with the engine off)
the brakes will still function. However, the effort
required to brake the vehicle will be much greater
than that required with the power system
operating.
WHEEL AND TIRE TORQUE SPECIFICATIONS
Proper lug nut/bolt torque is very important to
ensure that the wheel is properly mounted to the
vehicle. Any time a wheel has been removed and
reinstalled on the vehicle, the lug nuts/bolts
should be torqued using a properly calibrated
torque wrench using a six-sided (hex) deep wall
socket.
TORQUE SPECIFICATIONS
**Use only authorized dealer recommended lug nuts/
bolts and clean or remove any dirt or oil before tightening.
Inspect the wheel mounting surface prior to
mounting the tire and remove any corrosion or
loose particles.
Wheel Mounting Surface

Lug Nut/Bolt Torque **Lug Nut/
Bolt Size Lug Nut/Bolt
Socket Size
130 ft-lb
(176 N·m) M14 x
1.50 mm 22 mm

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TECHNICAL SPECIFICATIONS427
CHASSIS FLUIDS AND LUBRICANTS
Component Fluid, Lubricant, or Genuine Part

Automatic Transmission – If Equipped
Use only Mopar® ZF 8 & 9 Speed ATF Automatic Transmission Fluid or
equivalent. Failure to use the correct fluid may affect the function or
performance of your transmission.
Manual Transmission – If Equipped We recommend using Mopar® ATF+4 Automatic Transmission Fluid.
Transfer Case We recommend using Mopar® ATF+4 Automatic Transmission Fluid.
Front Axle Differential We recommend using Mopar® Gear & Axle Lubricant (SAE 75W85) (API GL-5).
Rear Axle Differential (M220 Sales Codes DRE/DRF) We recommend using Mopar® Gear & Axle Lubricant (SAE 75W85) (API GL-5).
Models equipped with Trac-Lok Limited Slip Differential require a friction
modifier additive.
Brake Master Cylinder We recommend using Mopar® DOT 3 Brake Fluid, SAE J1703.
Power Steering Reservoir We recommend using Mopar® Electric Steering Pump Fluid.
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433
INDEX
A
About Your Brakes......................................... 418Accessory Drive Belt Inspection..................... 372Adaptive Cruise Control (ACC)
(Cruise Control).............................................. 173Adding Engine Coolant (Antifreeze)............... 378Adding Fuel.......................................... 191, 192Additives, Fuel............................................... 419Advance Phone Connectivity......................... 252Air BagAir Bag Operation...................................... 308Air Bag Warning Light............. 132, 306, 309Enhanced Accident Response......... 317, 352Event Data Recorder (EDR)....................... 352Front Air Bag................................... 307, 309If Deployment Occurs................................ 316Knee Impact Bolsters................................ 314Maintaining Your Air Bag System.............. 317Maintenance............................................. 317Redundant Air Bag Warning Light.............307Transporting Pets...................................... 329Air Bag Light........................................ 306, 329Air Cleaner, Engine (Engine Air Cleaner
Filter)............................................................. 366Air Conditioner Maintenance......................... 372Air Conditioner Refrigerant.................. 372, 373
Air Conditioner System................................. 372Air Conditioning Filter..............................68, 373Air Conditioning System................................... 67Air Conditioning, Operating Tips....................... 67Air Filter........................................................ 366Air PressureTires......................................................... 402AlarmArm The System.......................................... 23Disarm The System..................................... 23Security Alarm............................................. 23Alterations/ModificationsVehicle......................................................... 11Android Auto........................................ 254, 255Android Auto™
S
........................................ 254Antifreeze (Engine Coolant)................. 377, 423Disposal................................................... 378Anti-Lock Brake System (ABS)............. 135, 279Apple CarPlay....................................... 254, 257Apple CarPlay®
S
...................................... 256Assist, Hill Start............................................. 283Audio Settings............................................... 240Audio Systems (Radio).................................. 214Auto Down Power Windows............................. 81Automatic Dimming Mirror............................... 51Automatic Door Locks...................................... 27
Automatic Headlights.......................................58Automatic High Beams.....................................58Automatic Temperature Control (ATC)..............67Automatic Transmission................................ 157Adding Fluid.............................................. 382Autostick................................................... 160Fluid And Filter Change............................. 382Fluid Change............................................. 382Fluid Level Check............................. 381, 382Fluid Type........................................ 382, 426Gear Ranges............................................. 157Special Additives...................................... 381Automatic Transmission Limp Home Mode... 159AutoPark....................................................... 145AUX..................................................................71Auxiliary Electrical Outlet (Power Outlet)..........77Auxiliary Power Outlet......................................77Auxiliary Switches............................................79Axle Fluid....................................................... 426Axle Lock.............................................. 165, 166
B
Battery.......................................................... 364Charging System Light.............................. 133Keyless Key Fob Replacement....................16Bed Lights........................................................59
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434
Belts, Seat
..................................................... 329Blind Spot Monitoring.................................... 287Bluetooth Connecting To A Particular Mobile Phone Or Audio Device After Pairing
................248Body Mechanism Lubrication........................ 374B-Pillar Location............................................. 400Brake Assist System...................................... 280Brake Control System.................................... 280Brake Fluid.......................................... 380, 426Brake System...................................... 380, 418Anti-Lock (ABS).......................................... 418Fluid Check............................................... 380Master Cylinder......................................... 380Parking...................................................... 152Warning Light............................................ 132Brake/Transmission Interlock....................... 157Bulb Replacement............................... 392, 393Bulbs, Light.......................................... 330, 392Bumper End Cap Removal............................. 208
C
Camera, Rear................................................ 189Capacities, Fluid............................................ 423Caps, FillerFuel........................................................... 191Oil (Engine)................................................ 362Radiator (Coolant Pressure)...................... 378Car Washes................................................... 412Carbon Monoxide Warning............................ 331
Carpet Safety Information............................. 414Carpeting...................................................... 415CD................................................................. 242Cellular Phone.............................................. 276Center High Mounted Stop Light................... 395Certification Label......................................... 195Chains, Tire................................................... 408Charge Air Cooler.......................................... 379Chart, Tire Sizing........................................... 397Checking Your Vehicle For Safety................. 328Checks, Safety.............................................. 328Child Restraint.............................................. 318Child RestraintsBooster Seats........................................... 321Child Seat Installation.............................. 327How To Stow An unused ALR Seat Belt.... 325Infant And Child Restraints....................... 320Locating The LATCH Anchorages.............. 324Lower Anchors And Tethers For Children.. 322Older Children And Child Restraints......... 320Seating Positions...................................... 321Clean Air Gasoline......................................... 419CleaningWheels..................................................... 407Climate Control................................................ 61Automatic.................................................... 62Manual........................................................ 64CNG And LP Fuel System Modifications........ 420Cold Weather Operation............................... 146Compact Spare Tire...................................... 406
Connected Services...................................... 258Connected Services FAQ............................... 272Connected Services Features....................... 261Connected Services, Getting Started............ 260Connected Services, Introduction................. 258ConnectorUCI...............................................................71Universal Consumer Interface (UCI).............71Console............................................................69Floor............................................................69Contract, Service........................................... 430Controls........................................................ 234Cooling Pressure Cap (Radiator Cap)............ 378Cooling System............................................. 377Adding Coolant (Antifreeze)...................... 378Coolant Level............................................ 379Cooling Capacity....................................... 423Disposal Of Used Coolant......................... 378Drain, Flush, And Refill............................. 377Inspection........................................ 377, 379Points To Remember................................ 379Pressure Cap............................................ 378Radiator Cap............................................. 378Selection Of Coolant (Antifreeze)......................... 377, 423, 424Corrosion Protection..................................... 411Cruise Control (Speed
Control)............................. 139, 140, 141, 173Customer Assistance.................................... 428Cybersecurity................................................ 214

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435
D
Daytime Running Lights
................................... 57Defroster, Windshield.................................... 329De-Icer, Remote Start...................................... 22Deleting A Phone........................................... 248Diesel Exhaust Fluid............................ 193, 371Diesel Fuel..................................................... 421Diesel Fuel Requirements............................. 421Bulk Storage Of......................................... 193Diesel Fuel System, Re-Priming..................... 370Dimmer Control Switch.................................... 60Dimmer Switch Headlight..................................................... 57DipsticksOil (Engine)................................................ 364Disable Vehicle Towing.................................. 350Disc Drive...................................................... 242Disconnecting................................................ 248DisposalAntifreeze (Engine Coolant)....................... 378Disturb........................................................... 251Do Not Use E-85 In Non-Flex Fuel Vehicles... 420Door Ajar Light............................................... 133Door Frame................................................... 104Installation................................................ 104Removal.................................................... 104Door LocksAutomatic.................................................... 27Door Off Mirror Kit........................................... 34
Doors............................................................... 24Removal............................................... 28, 32Removal, Front............................................ 28Removal, Rear............................................. 32Drag & Drop.................................................. 232Draining Fuel/Water Separator Filter............ 368Driver Memory Presets................................. 240Driver’s Seat Back Tilt............................... 43, 44Driving.......................................................... 207Driving Tips................................................... 207
E
Electric Brake Control System....................... 280Anti-Lock Brake System............................ 279Electronic Roll Mitigation................. 280, 286Electric Remote Mirrors................................... 52Electrical Outlet, Auxiliary (Power Outlet)......... 77Electrical Power Outlets................................... 77Electronic Speed Control (Cruise Control)..... 173Electronic Stability Control
(ESC)........................................... 135, 136, 281EmergencyIn Case Of................................................. 332SOS Emergency Call................................. 332Emergency Brake.......................................... 152Emergency Braking....................................... 293Emergency Gas Can Refueling...................... 346
Emergency, In Case OfJacking...................................................... 335Jump Starting........................................... 343Tow Hooks................................................ 351Engine........................................................... 362Air Cleaner................................................ 366Block Heater............................................. 148Break-In Recommendations..................... 151Checking Oil Level.................................... 364Compartment.................................. 362, 363Compartment Identification............. 362, 363Coolant (Antifreeze).................................. 424Cooling...................................................... 377Exhaust Gas Caution................................ 331Fails To Start............................................. 147Flooded, Starting...................................... 147Fuel Requirements................................... 423Idling......................................................... 150Jump Starting........................................... 343Oil...........................................365, 423, 424Oil Filler Cap............................................. 362Oil Filter.................................................... 366Oil Reset................................................... 122Oil Selection..................................... 365, 423Oil Synthetic.............................................. 366Overheating.............................................. 347Starting..................................................... 144Enhanced Accident Response
Feature................................................ 317, 352
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