tow JEEP WRANGLER 2021 Owner handbook (in English)

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

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

Owner's Manual (Operator Manual).....4
Parking Brake................121
Pets......................112
Phone (Uconnect)..............234
Power
Outlet (Auxiliary Electrical Outlet) . .52
Windows..................38
Power Steering Fluid............211
Pregnant Women And Seat Belts......90
Preparation For Jacking..........154
Pretensioners
Seat Belts.................90
Radial Ply Tires...............194
Radio
Presets...............218, 223
Radio 130
Operating Instructions Radio
Mode...................217
Radio Operation...............218
Rear Seat, Folding..............21
Rear Swing Gate...............51
Rear Wiper/Washer..............32
Recreational Towing.............142
Shifting Into Transfer Case
Neutral (N)...............143Shifting Out Of Transfer Case Neutral (N)
.......................144
Refrigerant..................187
Release, Hood.................51
Reminder, Seat Belt.............85
Remote Control
Starting System.............14
Remote Sound System (Radio)
Controls..................232
Remote Starting System...........14
Replacement Bulbs.............146
Replacement Keys..............17
Replacement Tires.............196
Resetting Oil Change Indicator.......58
Restraint, Head................25
Roll Over Warning................4
Rotation, Tires................201
Safety Checks Inside Vehicle.......113
Safety Checks Outside Vehicle......114
Safety, Exhaust Gas.............112
Safety Tips..................112
Schedule, Maintenance
.......170, 175
Seat Belt
Adjustable Upper Shoulder Belt
Anchorage.................89
Automatic Locking Retractor (ALR) . .90Energy Management Feature......90
Lap/Shoulder Belt Operation......88
Lap/Shoulder Belts............86
Lap/Shoulder Belt Untwisting.....89
Pregnant Women.............90
Seat Belt Pretensioner.........90
Seat Belt Reminder............85
Seat Belt Maintenance...........204
Seat Belt Reminder..............85
Seat Belts................85, 113
Adjustable Shoulder Belt........89
Adjustable Upper Shoulder
Anchorage.................89
Front Seat............85, 86, 88
Inspection................113
Operating Instructions.........88
Pregnant Women.............90
Pretensioners...............90
Rear Seat.................86
Reminder.................60
Untwisting Procedure..........89
Seats......................21
Adjustment................21
Easy Entry..............21, 23
Fold And Tumble Rear.........24
Heated...................21
Memory..................21
263

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