2018 JEEP WRANGLER trailer

WARNING!
doubt about your ability to perform a
service job, take your vehicle to a com-
petent mechanic.
• Failure to properly inspect and maintain
your vehicle could result in a component
malfunction and effect vehicle handling
and performance. This could cause an
accident.
Severe Duty Conditions
†† Change the engine oil and engine oil filter
at every 4500 miles (7,500 km) or 6 months
if using your vehicle under any of the follow-
ing severe duty conditions:
• Stop and go driving.
• Driving in dusty conditions.
• Short trips of less than 10 miles (16 km).
• Trailer towing.
• Taxi, police, or delivery service (commercial
service).
• Off-road or desert operation.
Scheduled Servicing — Diesel Engine
At Each Stop for Fuel
• Check the engine oil level about five min-
utes after a fully warmed engine is shut off.
Checking the oil level while the vehicle is
on level ground will improve the accuracy of
the oil level reading. Add oil only when the
level is at or below the ADD or MIN mark.
• Check the windshield washer solvent, add
as required.
Once a Month
• Check tire pressure and look for unusual
wear or damage. Rotate tires at the first
sign of irregular wear, even if it occurs
before the oil indicator system turns on.
• Inspect the battery; clean and tighten the
terminals as required.
• Check the fluid levels of engine coolant/
antifreeze deaeration bottle, and brake
master cylinder, add as needed.
• Check all lights and all other electrical
items for correct operation.At Each Oil Change
• Change the engine oil filter.
• Inspect the exhaust system.
• Inspect brake hoses.
• Check the engine coolant/antifreeze level,
hoses, and clamps.
• Inspect engine accessory drive belts. Re-
place as necessary.
• Inspect for the presence of water in the fuel
filter/water separator unit.
Inspection and service should be performed
anytime a malfunction is observed or sus-
pected. Retain all receipts.
175

Mileage or time passed (whichever comes first)15,000
30,000
45,000
60,000
75,000
90,000
105,00
120,000
135,000
150,000
Or Months: 12 24 36 48 60 72 84 96 108 120
Or Kilometers:
24,000
48,000
72,000
96,000
120,000
144,000
168,000
192,000
216,000
240,000
Inspect the front suspension, tie rod ends and boot seals,
replace if necessary.XX X
Change brake fluid every 24 months if using DOT 4 brake
fluid. **XXX X X
Inspect the front and rear axle fluid, change if using your
vehicle for police, taxi, fleet, offroad or frequent trailer
towing.XXX X X
Inspect the transfer case fluid. X X X X X
Inspect the CV/Universal joints. X X X X X X X X X X
Drain the fuel filter/water separator unit. X X X X X X X X X X
Replace the fuel filter. X X X X X
Adjust parking brake on vehicles equipped with four-wheel
disc brakes.XXX X X
Replace engine air cleaner filter. X X X X X
Replace air conditioning/cabin air filter X X X X X
Replace accessory drive belt(s). X X
Flush and replace the engine coolant at 10 years or
150,000 miles (240,000 km) whichever comes first.X
Change the automatic transmission fluid and filter.X
177

Mileage or time passed (whichever comes first)15,000
30,000
45,000
60,000
75,000
90,000
105,00
120,000
135,000
150,000
Or Months: 12 24 36 48 60 72 84 96 108 120
Or Kilometers:
24,000
48,000
72,000
96,000
120,000
144,000
168,000
192,000
216,000
240,000
Change automatic transmission fluid and filter if using
your vehicle for any of the following: trailer towing, snow
plowing, heavy loading, taxi, police, delivery service (com-
mercial service), off-road, desert operation or more than
50% of your driving is at sustained high speeds during hot
weather, above 90°F (32°C).XX
Change the manual transmission fluid if using your vehicle
for any of the following: trailer towing, snow plowing,
heavy loading, taxi, police, delivery service (commercial
service), off-road, desert operation or more than 50% of
your driving is at sustained high speeds during hot
weather, above 90°F (32°C).XX
Change transfer case fluid if using your vehicle for any of
the following: police, taxi, fleet, or frequent trailer towing.XX
Replace the engine timing belt, and timing belt tensioner.X
SERVICING AND MAINTENANCE
178

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 repair-
able).
• The puncture is no greater thana¼ofan
inch (6 mm).
Consult an authorized tire dealer for tire re-
pairs 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).
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 therun flat mode it has limited driving capabili-
ties and needs to be replaced immediately. A
Run Flat tire is not repairable.
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 section for
more information.
Tire Spinning
When stuck in mud, sand, snow, or ice con-
ditions, do not spin your vehicle's wheels
above 30 mph (48 km/h) or for longer than
30 seconds continuously without stopping.
Refer to “Freeing A Stuck Vehicle” in “In
Case Of Emergency” for further information.
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 sec-
WARNING!
onds continuously when you are stuck, and
do not let anyone near a spinning wheel,
no matter what the speed.
Tread Wear Indicators
Tread wear indicators are in the original
equipment tires to help you in determining
when your tires should be replaced.
These indicators are molded into the bottom
of the tread grooves. They will appear as
bands when the tread depth becomes a
1/16 of an inch (1.6 mm). When the tread is
Tire Tread
1 — Worn Tire
2 — New Tire
195

Component Fluid, Lubricant, or Genuine Part
Engine Oil – Gasoline We recommend you use API Certified SAE 5W-20 engine oil, meeting the requirements of FCA Stan-
dard MS-6395 or 9.55535-CR1.
SAE 5W-30 engine oil approved to FCA Standard MS-6395 or 9.55535-CR1 or ACEA A1/B1 may be
used when SAE 5W-20 engine oil is not available.
Engine Oil – Diesel We recommend you use SAE 5W-30 diesel engine oils meeting the requirements of ACEA C3 (LOW
ASH) and approved to FCA Standard MS-11106 or 9.55535-S3.
Spark Plugs – 3.6L Engine We recommend you use Mopar Spark Plugs.
Engine Oil Filter We recommend you use Mopar Engine Oil Filters.
Fuel Selection – Gasoline Engines Minimum Research Octane Number (RON) of 91 (EN 228 Specification)
Fuel Selection – Diesel Engines 50 Cetane or higher (Less than 10 ppm Sulfur, EN 590 Specification)
Chassis
Component Fluid, Lubricant, or Genuine Part
Automatic Transmission – If Equipped Use only ATF+4 Automatic Transmission Fluid. Failure to use ATF+4 fluid
may affect the function or performance of your transmission. We recom-
mend Mopar ATF+4 fluid.
Manual Transmission – If Equipped We recommend you use Mopar Manual Transmission Lubricant meeting
the requirements of FCA Material Standard MS-9224.
Transfer Case We recommend you use Mopar ATF+4 Automatic Transmission Fluid.
Axle Differential (Front) We recommend you use Mopar Gear & Axle Lubricant (SAE 80W-90)
(API GL-5).
Axle Differential (Rear)226 RBI (Model 44)– We recommend you use Mopar Gear & Axle Lubricant
(SAE 80W-90) (API GL-5) or equivalent. For trailer towing, use Mopar
Synthetic Gear & Axle Lubricant (SAE 75W-140). Models equipped with
Trac-Lok require an additive.
211

• Cold Air Intake • Differential Covers
Exterior:
• Black Tubular Side Steps • Satin Fuel Door • Air Deflectors
• Satin Black Grille • Cab Covers • Wheels
• Spare Tire Covers • Soft & Hard Tops • Splash Guards
• Wheel Locks • Hood Decals • Fender Flares
• Locking Fuel Cap • Ski And Bike Carriers • Trailer Hitches
• Hood (2 Styles Of Performance Hoods)
Interior:
• Lockable Storage • All Weather Floor Mats • Cargo Area Tray
• Hard Top Headliner • Carpet Floor Mats • Grab Handles
Electronics:
• Electronic Vehicle Tracking System • Remote Start • Heated Washer Solvent
213

Rear Folding.............21, 22
Removal..................25
Seatback Release............21
Tilting...................21
Vented...................21
Ventilated.................21
Security Alarm..............18, 61
Security System................18
Sentry Key (Immobilizer)..........16
Sentry Key Programming..........17
Sentry Key Replacement..........17
Service Assistance.............242
Shifting....................126
Automatic Transmission........126
Manual Transmission.........123
Transfer Case, Shifting Into Transfer
Case Neutral (N)............143
Transfer Case, Shifting Out Of Transfer
Case Neutral (N)............144
Shift Lever Override.............164
Shoulder Belts.................86
Signals, Turn.....29, 64, 114, 148, 149
Snow Chains (Tire Chains).........200
Snow Tires..................197
Spare Tire............154, 198, 199
Speed Control
Accel/Decel...............138Cancel..................138
Resume.................138
Speed Control (Cruise Control)......136
Starting.................14, 117
Automatic Transmission........117
Cold Weather..............117
Engine Fails To Start.........118
Manual Transmission.........117
Remote..................14
Starting And Operating...........117
Starting Procedures.............117
Steering.....................28
Tilt Column................28
Wheel, Tilt
.................28
Steering Wheel Audio Controls......232
Steering Wheel Mounted Sound System
Controls..................232
Storage, Vehicle............37, 201
Storing Your Vehicle............201
Stuck, Freeing................164
Supplemental Restraint System -
AirBag ...................93
Sway Bar Disconnect, Electronic.....133
Sway Control, Trailer.............76
Swing Gate, Rear...............51
System, Remote Starting..........14Temperature Control, Automatic (ATC) . .37
Tilt Steering Column.............28
Tip Start....................119
Tires...............114, 193, 198
Aging (Life Of Tires)..........196
Air Pressure...............193
Chains..................200
Changing.............154, 192
Compact Spare.............198
General Information.......193, 198
High Speed...............194
Inflation Pressures...........193
Jacking...........154, 156, 192
Life Of Tires...............196
Pressure Monitor System (TPMS) . . .77
Pressure Warning Light.........62
Radial..................194
Replacement..............196
Rotation.................201
Safety..................193
Snow Tires................197
Spare Tire.........154, 198, 199
Spinning.................195
Tread Wear Indicators.........195
Wheel Nut Torque...........208
To Open Hood.................51
INDEX
264

Touchscreen Radio
Cleaning Your Touchscreen Radio . .229
Towing.................140, 165
Disabled Vehicle............165
Guide...................140
Recreational...............142
Weight..................140
Towing Eyes.................167
Towing Vehicle Behind A Motorhome . .142
Trac-Lok Rear Axle.............132
Traction Control................71
Trailer Sway Control (TSC)..........76
Trailer Towing................140
Trailer Towing Guide............140
Trailer Weight................140
Transaxle
Autostick.................128
Transfer Case
Fluid...................211
Four-Wheel-Drive Operation.....129Transmission
Automatic.............127, 184
Fluid...................211
Maintenance..............184
Manual..................123
Shifting.................126
Transporting Pets..............112
Tread Wear Indicators............195
Turn Signals.........29, 64, 148, 149
UCI Connector................233
Uconnect Voice Command.........236
Universal Consumer Interface (UCI)
Connector.................233
Untwisting Procedure, Seat Belt......89
Vehicle Identification Number (VIN) . . .208
Vehicle Modifications/Alterations......4
Vehicle Storage.............37, 201
Voice Command...............236
Voice Prompt Volume
Navigation................229Volume
Navigation Voice Prompt.......
.229
Warning Lights (Instrument Cluster
Description).................61
Warning, Roll Over...............4
Warnings And Cautions............4
Washers, Windshield............183
Washing Vehicle...............202
Wheel And Wheel Trim...........199
Wheel And Wheel Trim Care........199
Wind Buffeting................39
Window Fogging................37
Windows
Power...................38
Windshield Defroster............113
Windshield Washers..........30, 183
Fluid...................183
Windshield Wiper Blades.........189
Windshield Wipers..............30
Wiper Blade Replacement.........189
Wiper, Rear...................32
265