fuel JEEP WRANGLER 2021 Owner handbook (in English)

TIRES
Tires — General Information
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 and Vehicle Stability
• Economy
• Tread Wear
• Ride Comfort
Safety
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 re-
sult in tire failure.
WARNING!
• Overinflated or underinflated tires can
affect vehicle handling and can fail sud-
denly, resulting in loss of vehicle control.
• Unequal tire pressures can cause steer-
ing 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 recommended cold tire inflation
pressure.
Both under-inflation and over-inflation affect
the stability of the vehicle and can produce a
feeling of sluggish response or over respon-
siveness in the steering.
NOTE:
• Unequal tire pressures from side to side
may cause erratic and unpredictable steer-
ing response.
• Unequal tire pressure from side to side may
cause the vehicle to drift left or right.Fuel EconomyUnderinflated tires will increase tire rolling re-
sistance 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 comfort-
able ride. Over-inflation 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.
193

TECHNICAL SPECIFICATIONS
VEHICLE IDENTIFICATION
NUMBER.................208
WHEEL AND TIRE TORQUE
SPECIFICATIONS...........208
Torque Specifications............208
FUEL REQUIREMENTS — GASOLINE
ENGINES.................209
Ethanol....................209
FUEL REQUIREMENTS — DIESEL
ENGINES.................209
FLUID CAPACITIES..........210
FLUIDS AND LUBRICANTS.....210
Engine.....................210
Chassis....................211
MOPAR ACCESSORIES........212
Authentic Accessories And Jeep
Performance Parts By Mopar.......212
TECHNICAL SPECIFICATIONS
207

After 25 miles (40 km), check the lug nut/
bolt torque to be sure that all the lug nuts/
bolts are properly seated against the wheel.
WARNING!
To avoid the risk of forcing the vehicle off
the jack, do not tighten the lug nuts fully
until the vehicle has been lowered. Failure
to follow this warning may result in per-
sonal injury.
FUEL REQUIREMENTS —
GASOLINE ENGINES
This engine is designed to meet all emissions
regulations and provide excellent fuel
economy and performance when using high
quality unleaded gasoline with a minimum
research octane rating (RON) of 91.
Light spark knock at low engine speeds is not
harmful to your engine. However, continued
heavy spark knock at high speeds can cause
damage, and immediate service is required.
Poor quality gasoline can cause problems
such as hard starting, stalling, and hesita-
tions. If you experience these symptoms, try
another brand of gasoline before considering
service for the vehicle.
Ethanol
The manufacturer recommends that your ve-
hicle be operated on fuel containing no more
than 15% ethanol. Purchasing your fuel from
a reputable supplier may reduce the risk of
exceeding this 15% limit and/or of receiving
fuel with abnormal properties. It should also
be noted that an increase in fuel consump-tion should be expected when using ethanol-
blended fuels, due to the lower energy con-
tent of ethanol. Problems that result from
using methanol/gasoline or E-85 ethanol
blends are not the responsibility of the
manufacturer.
CAUTION!
Use of fuel with Ethanol content higher
than 15% may result in engine malfunc-
tion, starting and operating difficulties,
and materials degradation. These adverse
effects could result in permanent damage
to your vehicle.
FUEL REQUIREMENTS —
DIESEL ENGINES
Use Premium Quality Diesel fuels with a
Cetane rating of 50 or higher, and meeting
the EN590 standard are highly recom-
mended. See your authorized dealer for fur-
ther information regarding fuels available in
your area.
Torque Patterns
209

FLUID CAPACITIES
U.S. Metric
Fuel (Approximate) — Two Door Models
18.5 Gallons 70 Liters
Fuel (Approximate) — Four Door Models
22.5 Gallons 85 Liters
Engine Oil With Filter
3.6 Liter Engine (SAE 5W-20, API Certified) 6 Quarts 5.7 Liters
2.8 Liter Diesel Engine (SAE 5W-30 Synthetic, low ash) 7 Quarts 6.5 Liters
Cooling System *
3.6 Liter Engine-Mopar Antifreeze/Coolant 10 Year/150,000 Mile Formula OAT
(Organic Additive Technology) that meets the requirements of FCA Material Stan-
dard MS.9003210.5 Quarts 9.9 Liters
2.8 Liter Diesel Engine-Mopar Antifreeze/Coolant 10 Year/150,000 Mile Formula
OAT (Organic Additive Technology) that meets the requirements of FCA Material
Standard MS.9003213 Quarts 12 Liters
* Includes coolant recovery bottle filled to MAX level.
FLUIDS AND LUBRICANTS
Engine
Component Fluid, Lubricant, or Genuine Part
Engine Coolant We recommend you use Mopar Antifreeze/Coolant 10 Year/150,000 Mile Formula OAT (Organic Ad-
ditive Technology) that meets the requirements of FCA Material Standard MS.90032, or an equiva-
lent coolant.
TECHNICAL SPECIFICATIONS
210

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

Component Fluid, Lubricant, or Genuine Part
Brake Master Cylinder We recommend you use Mopar DOT 3 Brake Fluid, SAE J1703. If DOT 3,
SAE J1703 brake fluid is not available, then DOT 4 is acceptable.
If using DOT 4 brake fluid, the fluid must be changed every 24 months
regardless of millage.
Power Steering Reservoir We recommend you use Mopar Power Steering Fluid +4, Mopar ATF+4 Au-
tomatic Transmission Fluid.
MOPAR ACCESSORIES
Authentic Accessories And Jeep
Performance Parts By Mopar
• Mopar Accessories and Jeep performance
parts are developed with the same engi-
neering that went into your Wrangler.
Choose these products with confidenceknowing that they have passed the same
rigid standards for function, fit, durability
and performance as your Wrangler.
• For the full line of Authentic Jeep Accesso-
ries by Mopar, visit your local dealership or
online at mopar.com for U.S. residents and
mopar.ca for Canadian residents.NOTE:
All parts are subject to availability.
Chrome:
• Grille • Tubular Side Steps • Tubular Bumpers
• Exhaust Tip • Fuel Door • Tail Lamp Guards
Off Road & Performance:
• Bumpers • Rock Rails • Skid Plates
• Winches • Lift Kits • Lights
• Performance Axles • LED Lights • Tow Hooks
TECHNICAL SPECIFICATIONS
212

• 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

Accessories..................212
Mopar...................212
Adding Fuel.................139
AirBag .....................93
Advance Front Air Bag.........93
Air Bag Operation.............94
Air Bag Warning Light..........92
Enhanced Accident Response . .98, 168
Event Data Recorder (EDR)......168
Front Air Bag...............93
If A Deployment Occurs.........97
Knee Impact Bolsters..........95
Maintaining Your Air Bag System . . .98
Transporting Pets............112
Air Bag Light............58, 92, 113
Air Bag Maintenance.............98
Air Conditioner Maintenance.......186
Air Conditioning Filter.........38, 187
Air Conditioning, Operating Tips......37
Air Conditioning Refrigerant. . . .186, 187
Air Conditioning System.......37, 186
Air Pressure, Tires..............193
Alarm (Security Alarm).........18, 61
Alterations/Modifications, Vehicle......4
Antifreeze (Engine Coolant)........210Anti-Lock Brake System (ABS).......68
Anti-Lock Warning Light...........61
Arming System (Security Alarm)......18
Assist, Hill Start................70
Audio Jack...............219, 226
Audio Settings................218
Automatic Headlights............29
Automatic Oil Change Indicator......58
Automatic Temperature Control (ATC) . . .37
Automatic Transmission..........127
Fluid Level Check...........184
Fluid Type................211
Autostick...................128
Axle Fluid...................211
Axle Lock...................132
Battery..................60, 186
Charging System Light.........60
Belts, Seat
.................
.113
Brake Assist System.............69
Brake Control System, Electronic.....69
Brake Fluid..............183, 211
Brake System................183
Fluid Check...............183
Master Cylinder.............183Parking..................121
Brake/Transmission Interlock.......127
Bulb Replacement..........146, 147
Bulbs, Light.................114
Capacities, Fluid..............210
Caps, Filler
Fuel....................139
Oil (Engine)...............180
Carbon Monoxide Warning.........112
Car Washes..................202
CD (Compact Disc) Player.........218
Center High Mounted Stop Light.....149
Chains, Tire..................200
Changing A Flat Tire.........154, 192
Checking Your Vehicle For Safety. . . .112
Checks, Safety................112
Child Restraints
How To Stow An Unused ALR Seat
Belt....................110
Cleaning
Wheels..................199
Climate Control................33
Manual...................33
Clock Setting.............218, 221
INDEX
259

Cold Weather Operation..........117
Compact Spare Tire.............198
Connector
UCI ....................233
Universal Consumer Interface
(UCI)...................233
Cooling System...............182
Coolant Capacity............210
Inspection................182
Selection Of Coolant (Antifreeze) . .210
Customer Assistance............242
Daytime Running Lights...........29
Dealer Service................189
Defroster, Windshield............113
Delay (Intermittent) Wipers.........31
Diagnostic System, Onboard........64
Diesel Engine Maintenance........175
Diesel Fuel..................209
Diesel Fuel Requirements.........209
Dimmer Switch, Headlight.........29
Dipsticks
Oil (Engine)...............182
Disabled Vehicle Towing..........165
Disarming, Security System.........18
Doors......................19Driver's Seat Back Tilt............21
Electronic Brake Control System......69
Anti-Lock Brake System........68
Electronic Roll Mitigation.......75
Traction Control System........71
Electronic Speed Control (Cruise
Control)..................136
Electronic Stability Control (ESC).....71
Electronic Throttle Control Warning
Light.....................60
Emergency Brake..............121
Emergency, In Case Of
Jacking..............154, 192
Jump Starting..............160
Engine.....................180
Break-In Recommendations.....121
Compartment...........180, 181
Compartment Identification . .180, 181
Cooling.................
.182
Exhaust Gas Caution..........112
Fails To Start...............118
Flooded, Starting............118
Fuel Requirements...........210
Jump Starting..............160
Oil .....................210
Oil Change Interval...........58Oil Filler Cap..............180
Oil Selection..............210
Overheating...............163
Starting.................117
Enhanced Accident Response
Feature................98, 168
Exhaust Gas Caution............112
Exhaust System...............112
Exterior Lights.............28, 114
Fabric Care..................203
Fabric Top..................203
Filters
Air Conditioning..........38, 187
Flashers
Hazard Warning.............146
Turn Signal......64, 114, 148, 149
Flash-To-Pass.................29
Flooded Engine Starting..........118
Fluid, Brake.................211
Fluid Capacities...............210
Fluid Leaks..................114
Fluid Level Checks
Brake...................183
Engine Oil................182
Manual Transmission.........184
Fluids And Lubricants...........210
INDEX
260

Fog Lights................29, 148
Fog Light Service..............148
Fog Lights, Rear...............148
Fold And Tumble Rear Seat.........24
Folding Rear Seat............21, 22
Four-Way Hazard Flasher..........146
Four Wheel Drive..............129
Operation................129
Shifting.................129
Systems.................129
Four Wheel Drive Operation........129
Freeing A Stuck Vehicle..........164
Fuel......................209
Adding..................139
Diesel...................209
Filler Cap (Gas Cap)..........139
Gasoline.................209
Octane Rating..............209
Requirements..............210
Tank Capacity..............210
Fueling....................139
Fuses.....................149
Gas Cap (Fuel Filler Cap) . . .65, 139, 140
Gasoline (Fuel)................209
Gear Ranges.................124
Gear Select Lever Override........164Glass Cleaning................206
GPS Navigation (Uconnect GPS).....231
Hazard Warning Flasher..........146
Headlights
Automatic.................29
Bulb Replacement...........147
Cleaning.................202
High Beam/Low Beam Select
Switch...................29
Leveling..................30
Passing..................29
Replacing
...............
.147
Switch...................28
Head Restraints................25
Heated Mirrors.................28
Heated Seats..................21
High Beam/Low Beam Select (Dimmer)
Switch....................29
Hill Descent Control.............76
Hill Descent Control Indicator.......76
Hill Start Assist................70
Hood Prop...................51
Hood Release.................51
Immobilizer (Sentry Key)..........16
Information Center, Vehicle.........56Instrument Cluster..............64
Instrument Panel Lens Cleaning.....205
Integrated Power Module (Fuses).....150
Interior Appearance Care..........204
Intermittent Wipers (Delay Wipers)....31
Introduction...................3
iPod/USB/MP3 Control
Bluetooth Streaming Audio......239
Jacking Instructions............155
Jack Operation.....154, 155, 156, 192
Jump Starting................160
Key, Programming..............17
Key, Replacement...............17
Keys.......................13
Key, Sentry (Immobilizer)..........16
Lane Change Assist..............30
Lap/Shoulder Belts..............86
Latches....................114
Hood....................51
Leaks, Fluid.................114
Leveling, Headlight..............30
Life Of Tires.................196
Light Bulbs..................114
Lights.....................114
261