Jeep Wrangler (2018 year). Manual — part 30

Sustained high temperature can cause the material of

the tire to degenerate and reduce tire life, and excessive

temperature can lead to sudden tire failure. The grade C

corresponds to a level of performance, which all pas-

senger vehicle tires must meet under the Federal Motor

Vehicle Safety Standard No. 109. Grades B and A

represent higher levels of performance on the laboratory

test wheel, than the minimum required by law.

WARNING!

The temperature grade for this tire is established for
a tire that is properly inflated and not overloaded.
Excessive speed, under-inflation, or excessive load-
ing, either separately or in combination, can cause
heat buildup and possible tire failure.

STORING THE VEHICLE

If you are storing your vehicle for more than 21 days, we

recommend that you take the following steps to minimize

the drain on your vehicle’s battery:
• Disconnect the negative cable from battery.
• Any time you store your vehicle or keep it out of service

(i.e., vacation) for two weeks or more, run the air

conditioning system at idle for about five minutes in the

fresh air and high blower setting. This will ensure

adequate system lubrication to minimize the possibility

of compressor damage when the system is started again.

BODYWORK

Protection From Atmospheric Agents

Vehicle body care requirements vary according to geo-

graphic locations and usage. Chemicals that make roads

passable in snow and ice and those that are sprayed on

trees and road surfaces during other seasons are highly

corrosive to the metal in your vehicle. Outside parking,

which exposes your vehicle to airborne contaminants, road

surfaces on which the vehicle is operated, extreme hot or

cold weather and other extreme conditions will have an

adverse effect on paint, metal trim, and underbody protec-

tion.
The following maintenance recommendations will enable

you to obtain maximum benefit from the corrosion resis-

tance built into your vehicle.

What Causes Corrosion?

Corrosion is the result of deterioration or removal of paint

and protective coatings from your vehicle.

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SERVICING AND MAINTENANCE

The most common causes are:
• Road salt, dirt and moisture accumulation.
• Stone and gravel impact.
• Insects, tree sap and tar.
• Salt in the air near seacoast localities.
• Atmospheric fallout/industrial pollutants.

Body And Underbody Maintenance

Cleaning Headlights

Your vehicle is equipped with plastic headlights and fog

lights that are lighter and less susceptible to stone breakage

than glass headlights.
Plastic is not as scratch resistant as glass and therefore

different lens cleaning procedures must be followed.
To minimize the possibility of scratching the lenses and

reducing light output, avoid wiping with a dry cloth. To

remove road dirt, wash with a mild soap solution followed

by rinsing.
Do not use abrasive cleaning components, solvents, steel

wool or other aggressive material to clean the lenses.

Preserving The Bodywork

Washing
• Wash your vehicle regularly. Always wash your vehicle

in the shade using Mopar Car Wash, or a mild car wash

soap, and rinse the panels completely with clear water.

• If insects, tar, or other similar deposits have accumulated

on your vehicle, use Mopar Super Kleen Bug and Tar

Remover to remove.

• Use a high quality cleaner wax, such as Mopar Cleaner

Wax to remove road film, stains and to protect your

paint finish. Take care never to scratch the paint.

• Avoid using abrasive compounds and power buffing

that may diminish the gloss or thin out the paint finish.

CAUTION!

• Do not use abrasive or strong cleaning materials such

as steel wool or scouring powder that will scratch
metal and painted surfaces.

• Use of power washers exceeding 1,200 psi (8,274 kPa)

can result in damage or removal of paint and decals.

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471

Special Care
• If you drive on salted or dusty roads or if you drive near

the ocean, hose off the undercarriage at least once a

month.

• It is important that the drain holes in the lower edges of

the doors, rocker panels, and trunk be kept clear and

open.

• If you detect any stone chips or scratches in the paint,

touch them up immediately. The cost of such repairs is

considered the responsibility of the owner.

• If your vehicle is damaged due to a collision or similar

cause that destroys the paint and protective coating,

have your vehicle repaired as soon as possible. The cost

of such repairs is considered the responsibility of the

owner.

• If you carry special cargo such as chemicals, fertilizers,

de-icer salt, etc., be sure that such materials are well

packaged and sealed.

• If a lot of driving is done on gravel roads, consider mud

or stone shields behind each wheel.

• Use Mopar Touch Up Paint on scratches as soon as

possible. An authorized dealer has touch up paint to

match the color of your vehicle.

Appearance Care For Fabric Top Models

To maintain the appearance of your vehicle’s interior trim

and top, follow these precautions:
• Avoid leaving your vehicle unattended with the top

down, as exposure to sun or rain may damage interior

trim.

• Do not use harsh cleaners or bleaching agents on top

material, as damage may result.

• Do not allow any vinyl cleaner to run down and dry on

the paint, leaving a streak.

• After cleaning your vehicle’s fabric top, always make

sure it is completely dry before lowering.

• Be especially careful when washing the windows by

following the directions for “Care of Fabric Top Win-

dows.”

Washing –

Use Mopar Car Wash or equivalent, or mild

soap suds, lukewarm water, and a brush with soft bristles.

If extra cleaning is required, use Mopar Convertible Cloth

Top Cleaner or equivalent, or a mild foaming cleaner on the

entire top, but support the top from underneath.

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SERVICING AND MAINTENANCE

Rinsing –

Be sure to remove all traces of cleaner by rinsing

the top thoroughly with clean water. Remember to allow

the top to dry before lowering it.

CAUTION!

Failure to follow these cautions may cause interior
water damage, stains or mildew on the top material:
• Avoid high-pressure car washes, as they can damage

the top material. Also, increased water pressure may
force past the weather strips.

• It is recommended that the top be free of water prior

to opening it. Operating the top, opening a door or
lowering a window while the top is wet may allow
water to drip into the vehicle’s interior.

• Use care when washing the vehicle, water pressure

directed at the weather strip seals may cause water to
leak into the vehicle’s interior.

• Careless handling and storage of the removable roof

panels may damage the seals, causing water to leak
into the vehicle’s interior.

• The front panel(s) must be positioned properly to

ensure sealing. Improper installation can cause water
to leak into the vehicle’s interior.

Care Of Fabric Top Windows

Your vehicle’s fabric top has pliable plastic windows which

can be scratched unless special care is taken by following

these directions:
• Never use a dry cloth to remove dust. Instead, use a

microfiber towel or soft cotton cloth moistened with
cold or warm, clean water, and wipe across the win-
dow, not up and down.

Mopar Jeep Soft Glass Window

Cleaner or equivalent will safely clean all plastic win-

dows without scratching. It removes fine scratches to

improve visibility and provides UV protection to help

prevent yellowing.

• When washing, never use hot water or anything stron-

ger 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.

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473

• Debris (sand, mud/dirt, dust, or salt) from off-road

driving will have an impact on plastic retainer opera-

tion. Even normal on-road driving and vehicle washing

will eventually impact window plastic retainer opera-

tion. 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 products

are available through an authorized dealer.

• Never paste stickers, gummed labels or any tape to the

windows. Adhesives are hard to remove and may dam-

age the windows.

INTERIORS

Carpet Removal

Front Carpets (Two And Four Door Models):

1. Remove the front grommets.

Front Carpet

1 — Grommets

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2. Pull the carpet out from the front to the rear.

3. Remove the grommets under the front seat. First for the

rear carpet and then the front carpet.

Front Carpet Pulled Away

Front And Rear Carpet Split

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475

4. Under the back of the front seat, open the carpet split

and then pull out the rear edge and slide the carpet to

the front (do not remove the harness).

5. Finally open the carpet split around seat bracket and

then remove the last two grommets.

6. When reinstalling carpet please preform these steps in

reverse order making sure that the carpet is tucked

under the scuffs, B pillar, console, and refasten grom-

mets.

Rear Carpet (Four Door Models):

1. Remove the grommets under the front seat (one left and

one right).

Rear Underside Of Front Seat

1 — Harness
2 — Carpet Split

Front Seat And Floor

1 — Grommets
2 — Carpet Split

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SERVICING AND MAINTENANCE

2. Then pull the carpet out, to the rear and open the carpet

split around the front seats brackets.

3. Remove the grommets under the rear seat (one left and

one right). First the grommet for the cargo carpet and

then the rear carpet.

4. Pull the carpet out to the front and open the carpet split

around the rear seats brackets.

5. When reinstalling carpet please preform these steps in

reverse order making sure that the carpet is tucked

under the scuffs, B pillar, console, and refasten grom-

mets.

Pull Toward The Rear Of Vehicle

1 — Carpet Split

Under Rear Seat

1 — Carpet Split

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477

Rear Carpet (Two Door Models):

1. Remove the rear seats.
2. Remove the sides grommets (one left and one right).

First the grommet from the side carpet and then the rear

carpet.

3. Remove the grommets under the front seat (one left and

one right).

4. Then pull the carpet out to the rear and open the carpet

split around the front seats brackets.

5. When reinstalling carpet please preform these steps in

reverse order making sure that the carpet is tucked

under the scuffs, B pillar, console, and refasten grom-

mets.

Side Carpet

1 — Grommet

Pull Carpet To The Rear

1 — Carpet Split
2 — Rear Carpet

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SERVICING AND MAINTENANCE

Cargo Carpet (Four Door Models):

1. Remove the grommets under the rear seat (one left and

one right).

2. Pull the carpet out to the rear and open the carpet split

around the seat belt attachment.

3. Remove the carpet under the load floor and the side

support and then pull the carpet out.

4. When reinstalling carpet please preform these steps in

reverse order making sure that the carpet is tucked

under the scuffs, B pillar, console, and refasten grom-

mets.

Under Rear Seat

1 — Carpet Split
2 — Rear Carpet

Rear Load Floor

1 — Side Supports
2 — Load Floor

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479

Cargo Carpet (Four Door Models) With Gap Hider:

1. Remove the grommets under the rear seat (one left and

one right).

2. Pull the carpet out to the front and open the carpet split

around the seat belt attachment and under the center

seat bracket.

3. When reinstalling carpet please preform these steps in

reverse order making sure that the carpet is tucked under

the scuffs, B pillar, console, and refasten grommets.

Side Carpet (Four Door Models):

1. Remove the side grommet (one left and one right).
2. Pull the carpet out starting on the top flange, then all

around the perimeter and open the carpet split around

the seat belt attachment.

Under Rear Seat

1 — Carpet Split
2 — Grommets
3 — Rear Carpet

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SERVICING AND MAINTENANCE

3. When reinstalling carpet please preform these steps in

reverse order making sure that the carpet is tucked

under the scuffs, B pillar, console, and refasten grom-

mets.

Side Carpet (Two Door Models):

1. Remove the side grommet and then the lower one (left

and right).

2. Pull the carpet out starting on the top flange, then all

around the perimeter and open the carpet split around

the seat belt attachment.

3. When reinstalling carpet please preform these steps in

reverse order making sure that the carpet is tucked

under the scuffs, B pillar, console, and refasten grom-

mets.

Inside Sidewall

1 — Top Flange
2 — Grommet
3 — Side Carpet

Inside Sidewall

1 — Top Flange
2 — Side Carpet
3 — Grommets
4 — Carpet Split

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481

Seats And Fabric Parts

Use Mopar Total Clean to clean fabric upholstery and

carpeting.

WARNING!

Do not use volatile solvents for cleaning purposes.
Many are potentially flammable, and if used in closed
areas they may cause respiratory harm.

Seat Belt Maintenance

Do not bleach, dye or clean the belts with chemical solvents

or abrasive cleaners. This will weaken the fabric. Sun

damage can also weaken the fabric.
If the belts need cleaning, use a mild soap solution or

lukewarm water. Do not remove the belts from the vehicle

to wash them. Dry with a soft cloth.
Replace the belts if they appear frayed or worn or if the

buckles do not work properly.

WARNING!

A frayed or torn belt could rip apart in a collision and
leave you with no protection. Inspect the belt system
periodically, checking for cuts, frays, or loose parts.
Damaged parts must be replaced immediately. Do not
disassemble or modify the system. Seat belt assemblies
must be replaced after a collision if they have been
damaged (i.e., bent retractor, torn webbing, etc.).

Plastic And Coated Parts

Use Mopar Total Clean to clean vinyl upholstery.

CAUTION!

• Direct contact of air fresheners, insect repellents,

suntan lotions, or hand sanitizers to the plastic,
painted, or decorated surfaces of the interior may
cause permanent damage. Wipe away immediately.

• Damage caused by these type of products may not be

covered by your New Vehicle Limited Warranty.

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SERVICING AND MAINTENANCE

Cleaning Plastic Instrument Cluster Lenses

The lenses in front of the instruments in this vehicle are

molded in clear plastic. When cleaning the lenses, care

must be taken to avoid scratching the plastic.
1. Clean with a wet soft cloth. A mild soap solution may be

used, but do not use high alcohol content or abrasive

cleaners. If soap is used, wipe clean with a clean damp

cloth.

2. Dry with a soft cloth.

Leather Parts

Mopar Total Clean is specifically recommended for leather

upholstery.
Your leather upholstery can be best preserved by regular

cleaning with a damp soft cloth. Small particles of dirt can

act as an abrasive and damage the leather upholstery and

should be removed promptly with a damp cloth. Stubborn

soils can be removed easily with a soft cloth and Mopar

Total Clean. Care should be taken to avoid soaking your

leather upholstery with any liquid. Please do not use

polishes, oils, cleaning fluids, solvents, detergents, or

ammonia-based cleaners to clean your leather upholstery.

Application of a leather conditioner is not required to

maintain the original condition.

NOTE:

If equipped with light colored leather, it tends to

show any foreign material, dirt, and fabric dye transfer

more so than darker colors. The leather is designed for easy

cleaning, and FCA recommends Mopar total care leather

cleaner applied on a cloth to clean the leather seats as

needed.

CAUTION!

Do not use Alcohol and Alcohol-based and/or Ketone
based cleaning products to clean leather seats, as
damage to the seat may result.

Glass Surfaces

All glass surfaces should be cleaned on a regular basis with

Mopar Glass Cleaner, or any commercial household-type

glass cleaner. Never use an abrasive type cleaner. Use

caution when cleaning the inside rear window equipped

with electric defrosters or windows equipped with radio

antennas. Do not use scrapers or other sharp instruments

that may scratch the elements.
When cleaning the rear view mirror, spray cleaner on the

towel or cloth that you are using. Do not spray cleaner

directly on the mirror.

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TECHNICAL SPECIFICATIONS

CONTENTS

䡵 VEHICLE IDENTIFICATION NUMBER . . . . . . . .486
䡵 BRAKE SYSTEM . . . . . . . . . . . . . . . . . . . . . . . .486
䡵 WHEEL AND TIRE TORQUE SPECIFICATIONS . .486

▫ Torque Specifications . . . . . . . . . . . . . . . . . . . .487

䡵 FUEL REQUIREMENTS. . . . . . . . . . . . . . . . . . . .488

▫ 2.0L Engine . . . . . . . . . . . . . . . . . . . . . . . . . .488
▫ 3.6L Engine . . . . . . . . . . . . . . . . . . . . . . . . . . .489
▫ Reformulated Gasoline . . . . . . . . . . . . . . . . . .489
▫ Materials Added To Fuel . . . . . . . . . . . . . . . . .489
▫ Gasoline/Oxygenate Blends . . . . . . . . . . . . . . .490

▫ Do Not Use E-85 In Non-Flex Fuel Vehicles . . . .490
▫ CNG And LP Fuel System Modifications . . . . . .490
▫ MMT In Gasoline. . . . . . . . . . . . . . . . . . . . . . .491
▫ Fuel System Cautions . . . . . . . . . . . . . . . . . . . .491
▫ Carbon Monoxide Warnings . . . . . . . . . . . . . . .492

䡵 FLUID CAPACITIES . . . . . . . . . . . . . . . . . . . . . .492
䡵 FLUIDS AND LUBRICANTS . . . . . . . . . . . . . . . .494

▫ Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .494
▫ Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . .496

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