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Jeep Wrangler (2023 year). Manual in english - page 22

SERVICING AND MAINTENANCE

345

4. Rotate the appropriate socket a quarter turn counter

clockwise, then remove it from the housing.

Bulb Removal

5. Pull the bulb straight from the socket to replace.

CENTER HIGH MOUNTED STOP LAMP (CHMSL)

The stop lamp is mounted on a bracket that extends

upward from the swing gate behind the spare tire. If

service is needed, obtain the LED Assembly from an

authorized dealer.
See the following steps to replace:
1. Remove the spare tire.
2. Remove the screws holding the tire carrier cover.
3. Remove two screws from lamp assembly and

disconnect electrical connector.

LICENSE PLATE LAMPS

See the following steps to replace:

NOTE:

To install a new bulb, reverse the procedure above. When

installing the new bulb, care should be taken to not allow

bare skin to come in contact with the bulb.
See an authorized dealer to replace LED lamps.

TIRES

IRE

AFETY

NFORMATION

Tire safety information will cover aspects of the following

information: Tire Markings, Tire Identification Numbers,

Tire Terminology and Definitions, Tire Pressures, and Tire

NOTE:

If your vehicle is equipped with bead-lock wheels, please

refer to your vehicles bead-lock specific part number for

additional information and instructions on mopar.com or

by contacting an authorized dealer.

Tire Markings

1 — US DOT Safety Standards Code

(TIN)
2 — Size Designation
3 — Service Description
4 — Maximum Load
5 — Maximum Pressure
6 — Treadwear, Traction and

Temperature Grades

346

SERVICING AND MAINTENANCE

NOTE:



P (Passenger) — Metric tire sizing is based on US design

standards. P-Metric tires have the letter “P” molded

into the sidewall preceding the size designation.

Example: P215/65R15 95H.



European — Metric tire sizing is based on European

design standards. Tires designed to this standard have

the tire size molded into the sidewall beginning with the

section width. The letter "P" is absent from this tire size

designation. Example: 215/65R15 96H.



LT (Light Truck) — Metric tire sizing is based on US

design standards. The size designation for LT-Metric

tires is the same as for P-Metric tires except for the

letters “LT” that are molded into the sidewall preceding

the size designation. Example: LT235/85R16.



Temporary spare tires are designed for temporary

emergency use only. Temporary high pressure compact

spare tires have the letter “T” or “S” molded into the

sidewall preceding the size designation. Example:

T145/80D18 103M.



High flotation tire sizing is based on US design stan

dards and it begins with the tire diameter molded into

the sidewall. Example: 31x10.5 R15 LT.

TIRE SIZING CHART

EXAMPLE:

Example Size Designation: P215/65R15XL 95H, 215/65R15 96H, LT235/85R16C, T145/80D18 103M, 31x10.5 R15 LT
P = Passenger car tire size based on US design standards, or
"....blank...." = Passenger car tire based on European design standards, or
LT = Light truck tire based on US design standards, or
T or S = Temporary spare tire or
31 = Overall diameter in inches (in)
215, 235, 145 = Section width in millimeters (mm)
65, 85, 80 = Aspect ratio in percent (%)



Ratio of section height to section width of tire, or

10.5 = Section width in inches (in)
R = Construction code



"R" means radial construction, or



"D" means diagonal or bias construction

15, 16, 18 = Rim diameter in inches (in)

SERVICING AND MAINTENANCE

347

Tire Identification Number (TIN)

The TIN may be found on one or both sides of the tire; however, the date code may only be on one side. Tires with white sidewalls will have the full TIN, including the date code, located

on the white sidewall side of the tire. Look for the TIN on the outboard side of black sidewall tires as mounted on the vehicle. If the TIN is not found on the outboard side, then you will

find it on the inboard side of the tire.

Service Description:
95 = Load Index



A numerical code associated with the maximum load a tire can carry

H = Speed Symbol



A symbol indicating the range of speeds at which a tire can carry a load corresponding to its load index under certain operating conditions



The maximum speed corresponding to the speed symbol should only be achieved under specified operating conditions (i.e., tire pressure, vehicle loading, road conditions, and

posted speed limits)

Load Identification:

Absence of the following load identification symbols on the sidewall of the tire indicates a Standard Load (SL) tire:



XL = Extra load (or reinforced) tire, or



LL = Light load tire or



C, D, E, F, G = Load range associated with the maximum load a tire can carry at a specified pressure

Maximum Load – Maximum load indicates the maximum load this tire is designed to carry
Maximum Pressure – Maximum pressure indicates the maximum permissible cold tire inflation pressure for this tire

EXAMPLE:

DOT MA L9 ABCD 0301
DOT = Department of Transportation



This symbol certifies that the tire is in compliance with the US Department of Transportation tire safety standards and is approved for highway use

MA = Code representing the tire manufacturing location (two digits)
L9 = Code representing the tire size (two digits)
ABCD = Code used by the tire manufacturer (one to four digits)

348

SERVICING AND MAINTENANCE

Tire Terminology And Definitions

03 = Number representing the week in which the tire was manufactured (two digits)



03 means the 3rd week

01 = Number representing the year in which the tire was manufactured (two digits)



01 means the year 2001



Prior to July 2000, tire manufacturers were only required to have one number to represent the year in which the tire was manufactured. Example: 031 could represent the 3rd

week of 1981 or 1991

Term

Definition

B-pillar

The vehicle B-pillar is the structural member of the body located behind the front door.

Cold Tire Inflation Pressure

Cold tire inflation pressure is defined as the tire pressure after the vehicle has not been driven for at least

three hours, or driven less than 1 mile (1.6 km) after sitting for a minimum of three hours. Inflation

pressure is measured in units of psi (pounds per square inch) or kPa (kilopascals).

Maximum Inflation Pressure

The maximum inflation pressure is the maximum permissible cold tire inflation pressure for this tire. The

maximum inflation pressure is molded into the sidewall.

Recommended Cold Tire Inflation Pressure

Vehicle manufacturer's recommended cold tire inflation pressure as shown on the tire placard.

Tire Placard

A label permanently attached to the vehicle describing the vehicle’s loading capacity, the original

equipment tire sizes and the recommended cold tire inflation pressures.

EXAMPLE:

SERVICING AND MAINTENANCE

349

Tire Loading And Tire Pressure

NOTE:

The proper cold tire inflation pressure is listed on the

driver’s side B-pillar or the rear edge of the driver's side

door.
Check the inflation pressure of each tire, including the

spare tire (if equipped), at least monthly and inflate to the

recommended pressure for your vehicle.

Example Tire Placard Location (Door)

Example Tire Placard Location (B-pillar)

Tire And Loading Information Placard

This placard tells you important information about the:
1. Number of people that can be carried in the vehicle.
2. Total weight your vehicle can carry.
3. Tire size designed for your vehicle.
4. Cold tire inflation pressures for the front, rear, and

spare tires.

The vehicle maximum load on the tire must not exceed the

load carrying capacity of the tire on your vehicle. You will

not exceed the tire's load carrying capacity if you adhere to

the loading conditions, tire size, and cold tire inflation

pressures specified on the Tire And Loading Information

Placard

page 169.

NOTE:

Under a maximum loaded vehicle condition, Gross Axle

Weight Rating (GAWR) for the front and rear axles must

not be exceeded.

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SERVICING AND MAINTENANCE

For further information on GAWR, vehicle loading, and

trailer towing

page 169.

To determine the maximum loading conditions of your

vehicle, locate the statement “The combined weight of

occupants and cargo should never exceed XXX kg or XXX

lbs” on the Tire And Loading Information Placard. The

combined weight of occupants, cargo/luggage and trailer

tongue weight (if applicable) should never exceed the

weight referenced here.

Steps For Determining Correct Load Limit—

(1) Locate the statement “The combined

weight of occupants and cargo should

never exceed XXX kg or XXX lbs.” on your

vehicle's placard.
(2) Determine the combined weight of

the driver and passengers that will be

riding in your vehicle.
(3) Subtract the combined weight of the

driver and passengers from XXX kg or

XXX lbs.

(4) The resulting figure equals the

available amount of cargo and luggage

load capacity. For example, if “XXX”

amount equals 1400 lbs. and there will

be five 150 lb passengers in your

vehicle, the amount of available cargo

and luggage load capacity is 650 lbs.

(1400-750 (5x150) = 650 lbs.)
(5) Determine the combined weight of

luggage and cargo being loaded on the

vehicle. That weight may not safely

exceed the available cargo and luggage

load capacity calculated in Step 4.
(6) If your vehicle will be towing a trailer,

load from your trailer will be transferred

to your vehicle. Consult this manual to

determine how this reduces the

available cargo and luggage load

capacity of your vehicle.

Metric Example For Load Limit
For example, if “XXX” amount equals 635 kg and there will

be five 68 kg passengers in your vehicle, the amount of

available cargo and luggage load capacity is 295 kg

(635-340 (5x68) = 295 kg) as shown in step 4.

NOTE:



If your vehicle will be towing a trailer, load from your

trailer will be transferred to your vehicle. The following

table shows examples on how to calculate total load,

cargo/luggage, and towing capacities of your vehicle

with varying seating configurations and number and

size of occupants. This table is for illustration purposes

only and may not be accurate for the seating and load

carry capacity of your vehicle.



For the following example, the combined weight of

occupants and cargo should never exceed 865 lb (392

kg).

SERVICING AND MAINTENANCE

351

WARNING!

Overloading of your tires is dangerous. Overloading can cause tire failure, affect vehicle handling, and increase your stopping distance. Use tires of the recommended load capacity

for your vehicle. Never overload them.

352

SERVICING AND MAINTENANCE

(Continued)

IRES

— G

ENERAL

NFORMATION

Tire Pressure

Proper tire inflation pressure is essential to the safe and

satisfactory operation of your vehicle. Four primary areas

are affected by improper tire pressure:



Safety



Fuel Economy



Tread Wear



Ride Comfort and Vehicle Stability

Safety

Both underinflation and overinflation affect the stability of

the vehicle and can produce a feeling of sluggish response

or over responsiveness in the steering.

NOTE:



Unequal tire pressures from side to side may cause

erratic and unpredictable steering response.



Unequal tire pressure from side to side may cause the

vehicle to drift left or right.

Fuel Economy
Underinflated tires will increase tire rolling resistance

resulting in higher fuel consumption.
Tread Wear
Improper cold tire inflation pressures can cause abnormal

wear patterns and reduced tread life, resulting in the need

for earlier tire replacement.
Ride Comfort And Vehicle Stability
Proper tire inflation contributes to a comfortable ride.

Overinflation produces a jarring and uncomfortable ride.

Tire Inflation Pressures

The proper cold tire inflation pressure is listed on the

driver's side B-pillar or rear edge of the driver's side door.

At least once a month:



Check and adjust tire pressure with a good quality

pocket-type pressure gauge. Do not make a visual

judgement when determining proper inflation. Tires

may look properly inflated even when they are

under-inflated.



Inspect tires for signs of tire wear or visible damage.

Inflation pressures specified on the placard are always

“cold tire inflation pressure”. Cold tire inflation pressure is

defined as the tire pressure after the vehicle has not been

driven for at least three hours, or driven less than 1 mile

(1.6 km) after sitting for a minimum of three hours. The

cold tire inflation pressure must not exceed the maximum

inflation pressure molded into the tire sidewall.
Check tire pressures more often if subject to a wide range

of outdoor temperatures, as tire pressures vary with

temperature changes.
Tire pressures change by approximately 1 psi (7 kPa) per

12°F (7°C) of air temperature change. Keep this in mind

when checking tire pressure inside a garage, especially in

the Winter.

WARNING!



Improperly inflated tires are dangerous and can

cause collisions.



Underinflation increases tire flexing and can result in

overheating and tire failure.



Overinflation reduces a tire's ability to cushion shock.

Objects on the road and chuckholes can cause

damage that result in tire failure.



Overinflated or underinflated tires can affect vehicle

handling and can fail suddenly, resulting in loss of

vehicle control.



Unequal tire pressures can cause steering problems.

You could lose control of your vehicle.



Unequal tire pressures from one side of the vehicle

to the other can cause the vehicle to drift to the right

or left.



Always drive with each tire inflated to the recom

mended cold tire inflation pressure.

WARNING!

CAUTION!

After inspecting or adjusting the tire pressure, always

reinstall the valve stem cap. This will prevent moisture

and dirt from entering the valve stem, which could

damage the valve stem.

SERVICING AND MAINTENANCE

353

Example: If garage temperature = 68°F (20°C) and the

outside temperature = 32°F (0°C) then the cold tire

inflation pressure should be increased by 3 psi (21 kPa),

which equals 1 psi (7 kPa) for every 12°F (7°C) for this

outside temperature condition.
Tire pressure may increase from 2 to 6 psi (13 to 40 kPa)

during operation. DO NOT reduce this normal pressure

build up or your tire pressure will be too low.

Tire Pressures For High Speed Operation

The manufacturer advocates driving at safe speeds and

within posted speed limits. Where speed limits or

conditions are such that the vehicle can be driven at high

speeds, maintaining correct tire inflation pressure is very

important. Increased tire pressure and reduced vehicle

loading may be required for high-speed vehicle operation.

Refer to an authorized tire dealer or original equipment

vehicle dealer for recommended safe operating speeds,

loading and cold tire inflation pressures.

Radial Ply Tires

Tire Repair
If your tire becomes damaged, it may be repaired if it

meets the following criteria:



The tire has not been driven on when flat.



The damage is only on the tread section of your tire

(sidewall damage is not repairable).



The puncture is no greater than ¼ of an inch (6 mm).

Consult an authorized tire dealer for tire repairs and

additional information.
Damaged Run Flat tires, or Run Flat tires that have

experienced a loss of pressure should be replaced

immediately with another Run Flat tire of identical size and

service description (Load Index and Speed Symbol).

Replace the tire pressure sensor as well as it is not

designed to be reused.

Run Flat Tires — If Equipped

Run Flat tires allow you the capability to drive 50 miles

(80 km) at 50 mph (80 km/h) after a rapid loss of inflation

pressure. This rapid loss of inflation is referred to as the

Run Flat mode. A Run Flat mode occurs when the tire

inflation pressure is of/or below 14 psi (96 kPa). Once a

Run Flat tire reaches the run flat mode it has limited

driving capabilities and needs to be replaced immediately.

A Run Flat tire is not repairable. When a Run Flat tire is

changed after being driven in a Run Flat mode 14 psi

(96 kPa) condition, please replace the TPMS sensor as it

is not designed to be reused.

NOTE:

TPMS sensor must be replaced after driving the vehicle on

a flat tire condition.
It is not recommended driving a vehicle loaded at full

capacity or to tow a trailer while a tire is in the Run Flat

mode.
See the Tire Pressure Monitoring System section for more

information.

Tire Spinning

When stuck in mud, sand, snow, or ice conditions, do not

spin your vehicle's wheels above 30 mph (48 km/h) or for

longer than 30 seconds continuously without stopping.
For further information

page 302.

WARNING!

High speed driving with your vehicle under maximum

load is dangerous. The added strain on your tires could

cause them to fail. You could have a serious collision.

Do not drive a vehicle loaded to the maximum capacity

at continuous speeds above 75 mph (120 km/h).

WARNING!

Combining radial ply tires with other types of tires on

your vehicle will cause your vehicle to handle poorly.

The instability could cause a collision. Always use radial

ply tires in sets of four. Never combine them with other

types of tires.

WARNING!

Fast spinning tires can be dangerous. Forces generated

by excessive wheel speeds may cause tire damage or

failure. A tire could explode and injure someone. Do not

spin your vehicle's wheels faster than 30 mph

(48 km/h) for more than 30 seconds continuously

when you are stuck, and do not let anyone near a spin

ning wheel, no matter what the speed.

354

SERVICING AND MAINTENANCE

(Continued)

Tread Wear Indicators

Tread wear indicators are in the original equipment tires to

help you in determining when your tires should be

replaced.

Tire Tread

These indicators are molded into the bottom of the tread

grooves. They will appear as bands when the tread depth

becomes 1/16 of an inch (1.6 mm). When the tread is

worn to the tread wear indicators, the tire should be

replaced.
For further information

page 354.

Life Of Tire

The service life of a tire is dependent upon varying factors

including, but not limited to:



Driving style.



Tire pressure - Improper cold tire inflation pressures can

cause uneven wear patterns to develop across the tire

tread. These abnormal wear patterns will reduce tread

life, resulting in the need for earlier tire replacement.



Distance driven.



Performance tires, tires with a speed rating of V or

higher, and Summer tires typically have a reduced

tread life. Rotation of these tires per the vehicle sched

uled maintenance is highly recommended.

NOTE:

Wheel valve stem must be replaced as well when installing

new tires due to wear and tear in existing tires.
Keep dismounted tires in a cool, dry place with as little

exposure to light as possible. Protect tires from contact

with oil, grease, and gasoline.

Replacement Tires

The tires on your new vehicle provide a balance of many

characteristics. They should be inspected regularly for

wear and correct cold tire inflation pressures. The

manufacturer strongly recommends using tires equivalent

to the originals in size, quality and performance when

replacement is needed. Refer to the paragraph on “Tread

Wear Indicators” in this section. Refer to the Tire And

Loading Information Placard or the Vehicle Certification

Label for the size designation of your tire. The Load Index

and Speed Symbol for your tire will be found on the original

equipment tire sidewall.

For more information relating to the Load Index and Speed

Symbol of a tire

page 346.

It is recommended to replace the two front tires or two rear

tires as a pair. Replacing just one tire can seriously affect

your vehicle’s handling. If you ever replace a wheel, make

sure that the wheel’s specifications match those of the

original wheels.
It is recommended you contact an authorized tire dealer or

original equipment dealer with any questions you may

have on tire specifications or capability. Failure to use

equivalent replacement tires may adversely affect the

safety, handling, and ride of your vehicle.

1 — Tread Wear Indicators

WARNING!

Tires and the spare tire should be replaced after six

years, regardless of the remaining tread. Failure to follow

this warning can result in sudden tire failure. You could

lose control and have a collision resulting in serious

injury or death.

WARNING!



Do not use a tire, wheel size, load rating, or speed

rating other than that specified for your vehicle.

Some combinations of unapproved tires and wheels

may change suspension dimensions and perfor

mance characteristics, resulting in changes to

steering, handling, and braking of your vehicle. This

can cause unpredictable handling and stress to

steering and suspension components. You could

lose control and have a collision resulting in serious

injury or death. Use only the tire and wheel sizes with

load ratings approved for your vehicle.



Never use a tire with a smaller load index or capacity,

other than what was originally equipped on your

vehicle. Using a tire with a smaller load index could

result in tire overloading and failure. You could lose

control and have a collision.

SERVICING AND MAINTENANCE

355

IRE

YPES

All Season Tires — If Equipped

All Season tires provide traction for all seasons (Spring,

Summer, Autumn, and Winter). Traction levels may vary

between different all season tires. All season tires can be

identified by the M+S, M&S, M/S or MS designation on the

tire sidewall. Use all season tires only in sets of four;

failure to do so may adversely affect the safety and

handling of your vehicle.

Summer Or Three Season Tires — If

Equipped

Summer tires provide traction in both wet and dry

conditions, and are not intended to be driven in snow or on

ice. If your vehicle is equipped with Summer tires, be

aware these tires are not designed for Winter or cold

driving conditions. Install Winter tires on your vehicle when

ambient temperatures are less than 40°F (5°C) or if

roads are covered with ice or snow. For more information,

contact an authorized dealer.

Summer tires do not contain the all season designation or

mountain/snowflake symbol on the tire sidewall. Use

Summer tires only in sets of four; failure to do so may

adversely affect the safety and handling of your vehicle.

Snow Tires

Some areas of the country require the use of snow tires

during the Winter. Snow tires can be identified by a

“mountain/snowflake” symbol on the tire sidewall.

If you need snow tires, select tires equivalent in

size and type to the original equipment tires.

Use snow tires only in sets of four; failure to do

so may adversely affect the safety and handling

of your vehicle.
Snow tires generally have lower speed ratings than what

was originally equipped with your vehicle and should not be

operated at sustained speeds over 75 mph (120 km/h).

For speeds above 75 mph (120 km/h) refer to original

equipment or an authorized tire dealer for recommended

safe operating speeds, loading and cold tire inflation

pressures.
While studded tires improve performance on ice, skid and

traction capability on wet or dry surfaces may be poorer

than that of non-studded tires. Some states prohibit

studded tires; therefore, local laws should be checked

before using these tire types.

PARE

IRES

— I

QUIPPED

NOTE:

For vehicles equipped with Tire Service Kit instead of a

spare tire, please refer to “Tire Service Kit” in “In Case Of

Emergency” for further information.

For restrictions when towing with a spare tire designated

for temporary emergency use

page 174.

Spare Tire Matching Original Equipped Tire

And Wheel — If Equipped

Your vehicle may be equipped with a spare tire and wheel

equivalent in look and function to the original equipment

tire and wheel found on the front or rear axle of your

vehicle. This spare tire may be used in the tire rotation for

your vehicle. If your vehicle has this option, refer to an

authorized tire dealer for the recommended tire rotation

pattern.

Compact Spare Tire — If Equipped

The compact spare is for temporary emergency use only.

You can identify if your vehicle is equipped with a compact

spare by looking at the spare tire description on the Tire

And Loading Information Placard located on the driver’s

side door opening or on the sidewall of the tire. Compact



Failure to equip your vehicle with tires having

adequate speed capability can result in sudden tire

failure and loss of vehicle control.

CAUTION!

Replacing original tires with tires of a different size may

result in false speedometer and odometer readings.

WARNING!

Do not use Summer tires in snow/ice conditions. You

could lose vehicle control, resulting in severe injury or

death. Driving too fast for conditions also creates the

possibility of loss of vehicle control.

CAUTION!

Because of the reduced ground clearance, do not take

your vehicle through an automatic car wash with a

compact or limited use temporary spare installed.

Damage to the vehicle may result.

356

SERVICING AND MAINTENANCE

spare tire descriptions begin with the letter “T” or “S”

preceding the size designation. Example: T145/80D18

103M.
T, S = Temporary Spare Tire
Since this tire has limited tread life, the original equipment

tire should be repaired (or replaced) and reinstalled on

your vehicle at the first opportunity.
Do not install a wheel cover or attempt to mount a

conventional tire on the compact spare wheel, since the

wheel is designed specifically for the compact spare tire.

Do not install more than one compact spare tire and wheel

on the vehicle at any given time.

Full Size Spare — If Equipped

The full size spare is for temporary emergency use only.

This tire may look like the originally equipped tire on the

front or rear axle of your vehicle, but it is not. This spare

tire may have limited tread life. When the tread is worn to

the tread wear indicators, the temporary use full size

spare tire needs to be replaced. Since it is not the same as

your original equipment tire, replace (or repair) the original

equipment tire and reinstall on the vehicle at the first

opportunity.

Limited Use Spare — If Equipped

The limited use spare tire is for temporary emergency use

only. This tire is identified by a label located on the limited

use spare wheel. This label contains the driving limitations

for this spare. This tire may look like the original equipped

tire on the front or rear axle of your vehicle, but it is not.

Installation of this limited use spare tire affects vehicle

handling. Since it is not the same as your original

equipment tire, replace (or repair) the original equipment

tire and reinstall on the vehicle at the first opportunity.

HEEL

RIM

ARE

All wheels and wheel trim, especially aluminum and

chrome plated wheels, should be cleaned regularly using

mild (neutral Ph) soap and water to maintain their luster

and to prevent corrosion. Wash wheels with the same

soap solution recommended for the body of the vehicle

and remember to always wash when the surfaces are not

hot to the touch.
Your wheels are susceptible to deterioration caused by

salt, sodium chloride, magnesium chloride, calcium

chloride, etc., and other road chemicals used to melt ice

or control dust on dirt roads. Use a soft cloth or sponge

and mild soap to wipe away promptly. Do not use harsh

chemicals or a stiff brush. They can damage the wheel’s

protective coating that helps keep them from corroding

and tarnishing.

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.

WARNING!

Compact and collapsible spares are for temporary

emergency use only. With these spares, do not drive

more than 50 mph (80 km/h). Temporary use spares

have limited tread life. When the tread is worn to the

tread wear indicators, the temporary use spare tire

needs to be replaced. Be sure to follow the warnings,

which apply to your spare. Failure to do so could result

in spare tire failure and loss of vehicle control.

WARNING!

Limited use spares are for emergency use only.

Installation of this limited use spare tire affects vehicle

handling. With this tire, do not drive more than the

speed listed on the limited use spare wheel. Keep

inflated to the cold tire inflation pressures listed on your

Tire And Loading Information Placard located on the

driver’s side B-pillar or the rear edge of the driver’s side

door. Replace (or repair) the original equipment tire at

the first opportunity and reinstall it on your vehicle.

Failure to do so could result in loss of vehicle control.

CAUTION!

Avoid products or automatic car washes that use acidic

solutions or strong alkaline additives or harsh brushes.

Many aftermarket wheel cleaners and automatic car

washes 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.

SERVICING AND MAINTENANCE

357

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 Wheels

NOW

RACTION

EVICES

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 manu

facturer.



No other tire sizes are recommended for use with the

snow traction device.



Please follow the table for the recommended 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

Axle

Tire/Wheel Size

Snow Traction Device (Maximum

Projection Beyond Tire Profile Or

Equivalent)

Sport

Rear

245/75R17

S Class or Autosock

Willy’s

LT255/75R17C

Autosock

Sahara

255/70R18

Rubicon

LT285/70R17C

High Altitude

275/55R20

358

SERVICING AND MAINTENANCE

IRE

OTATION

ECOMMENDATIONS

The tires on the front and rear of your vehicle operate at

different loads and perform different steering, handling,

and braking functions. For these reasons, they wear at

unequal rates.
These effects can be reduced by timely rotation of tires.

The benefits of rotation are especially worthwhile with

aggressive tread designs such as those on On/Off Road

type tires. Rotation will increase tread life, help to

maintain mud, snow, and wet traction levels, and

contribute to a smooth, quiet ride.
For the proper maintenance intervals

page 307. The

reasons for any rapid or unusual wear should be corrected

prior to rotation being performed.
The suggested rotation method is the “rearward cross”

shown in the following diagram.

Tire Rotation (Rearward Cross)

DEPARTMENT OF TRANSPORTATION

UNIFORM TIRE QUALITY GRADES

The following tire grading categories

were established by the National

Highway Traffic Safety Administration.

The specific grade rating assigned by the

tire's manufacturer in each category is

shown on the sidewall of the tires on

your vehicle.
All passenger vehicle tires must conform

to Federal safety requirements in

addition to these grades.

READWEAR

The Treadwear grade is a comparative

rating, based on the wear rate of the tire

when tested under controlled conditions

WARNING!

Using tires of different size and type (M+S, Snow)

between front and rear axles can cause unpredictable

handling. You could lose control and have a collision.

CAUTION!

To avoid damage to your vehicle or tires, observe the

following precautions:



Because of restricted traction device clearance

between tires and other suspension components, it

is important that only traction devices in good condi

tion are used. Broken devices can cause serious

damage. Stop the vehicle immediately if noise occurs

that could indicate device breakage. Remove the

damaged parts of the device before further use.



Install device as tightly as possible and then

retighten after driving about ½ mile (0.8 km). Auto

sock traction devices do not require retightening.



Do not exceed 30 mph (48 km/h).



Drive cautiously and avoid severe turns and large

bumps, especially with a loaded vehicle.



Do not drive for a prolonged period on dry pavement.



Observe the traction device manufacturer’s instruc

tions on the method of installation, operating speed,

and conditions for use. Always use the suggested

operating speed of the device manufacturer’s if it is

less than 30 mph (48 km/h).



Do not use traction devices on a compact spare tire.

CAUTION!

Proper operation of four-wheel drive vehicles depends

on tires of equal size, type, and circumference on each

wheel. Any difference in tire size can cause damage to

the transfer case. Tire rotation schedule should be

followed to balance tire wear.

SERVICING AND MAINTENANCE

359

on a specified government test course.

For example, a tire graded 150 would

wear one and one-half times as well on

the government course as a tire graded

100. The relative performance of tires

depends upon the actual conditions of

their use, however, and may depart

significantly from the norm due to

variations in driving habits, service

practices, and differences in road

characteristics and climate.

RACTION

RADES

The Traction grades, from highest to

lowest, are AA, A, B, and C. These grades

represent the tire's ability to stop on wet

pavement, as measured under

controlled conditions on specified

government test surfaces of asphalt and

concrete. A tire marked C may have poor

traction performance.

EMPERATURE

RADES

The Temperature grades are A (the

highest), B, and C, representing the tire's

resistance to the generation of heat and

its ability to dissipate heat, when tested

under controlled conditions on a

specified indoor laboratory test wheel.
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

passenger 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.

STORING THE VEHICLE

WARNING!

The traction grade assigned to this tire is based on

straight-ahead braking traction tests, and does not

include acceleration, cornering, hydroplaning, or peak

traction characteristics.

WARNING!

The temperature grade for this tire is established for a

tire that is properly inflated and not overloaded.

Excessive speed, underinflation, or excessive loading,

either separately or in combination, can cause heat

buildup and possible tire failure.

WARNING!



Take care to avoid the radiator cooling fan whenever

the hood is raised. It can start anytime the ignition

switch is ON. You can be injured by moving fan

blades.



Remove any metal jewelry such as rings, watch

bands and bracelets that could make an inadvertent

electrical contact. You could be seriously injured.



Vehicles with the Stop/Start system will be equipped

with two batteries. Both the main and the supple

mental batteries must be disconnected to

completely de-energize the 12 Volt electrical system.



Serious injury or death could result if you do not

disconnect both batteries. To learn how to properly

disconnect, see an authorized dealer.

360

SERVICING AND MAINTENANCE

If you are storing your vehicle for more than three weeks,

we recommend that you take the following steps to

minimize the drain on your vehicle's battery:



Disconnect the negative cable from battery.



If your vehicle is equipped with Stop/Start system then

disconnect both the main and supplemental negative

battery cables.



Any time you store your vehicle or keep it out of service

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

tioning 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.



If assistance is needed to disconnect the battery

system, see an authorized dealer.

Battery Cable Disconnect

NOTE:



You must isolate the supplemental battery connection

point, as well as the main battery terminal from the

post, as shown in the image, to fully de-energize both

batteries for storage. If assistance is needed to discon

nect the battery system, see an authorized dealer.



Do not disconnect the Intelligent Battery Sensor (IBS),

or your Stop/Start system may not function for up to 24

hours, due to the IBS being set into learn mode.

BODYWORK

ROTECTION

ROM

TMOSPHERIC

GENTS

Vehicle body care requirements vary according to

geographic 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 protection.
The following maintenance recommendations will enable

you to obtain maximum benefit from the corrosion

resistance built into your vehicle.

What Causes Corrosion?

Corrosion is the result of deterioration or removal of paint

and protective coatings from your vehicle.
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.

CAUTION!

If the negative battery cables are not isolated properly it

can cause a potential power spike or surge in the

system, resulting in damage to essential electrical

components.

1 — Supplemental Negative Battery Cable
2 — Main Negative Battery Cable
3 — Main Negative Battery Terminal
4 — Intelligent Battery Sensor (IBS)

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