automatic transmission fluid JEEP WRANGLER 2021 Owner handbook (in English)

SERVICING AND MAINTENANCE
SCHEDULED SERVICING......170
Scheduled Servicing — Gasoline
Engine....................170
Scheduled Servicing — Diesel Engine. .175
ENGINE COMPARTMENT......180
3.6L Engine.................180
2.8L Diesel Engine.............181
Checking Oil Level — Gasoline Engine. .182
Checking Oil Level — Diesel Engine . . .182
Cooling System...............182
Adding Washer Fluid............183
Brake System................183
Manual Transmission...........184Automatic Transmission..........184
Maintenance-Free Battery........186
Air Conditioner Maintenance.......186
DEALER SERVICE...........189
Windshield Wiper Blades.........189
RAISING THE VEHICLE........192
TIRES....................193
Tires — General Information.......193
Tire Types...................197
Spare Tires — If Equipped........198
Wheel And Wheel Trim Care.......199Tire Chains (Traction Devices).......200
Tire Rotation Recommendations.....201
STORING THE VEHICLE.......201
BODYWORK...............202
Body And Underbody Maintenance . . .202
Preserving The Bodywork.........202
INTERIORS...............204
Seats And Fabric Parts...........204
Plastic And Coated Parts..........205
Leather Parts.................205
Glass Surfaces...............206
SERVICING AND MAINTENANCE
169

SCHEDULED SERVICING
Scheduled Servicing — Gasoline Engine
The scheduled services listed in this manual
must be done at the times or mileages speci-
fied to protect your vehicle warranty and
ensure the best vehicle performance and re-
liability. More frequent maintenance may be
needed for vehicles in severe operating con-
ditions, such as dusty areas and very short
trip driving. Inspection and service should
also be done anytime a malfunction is sus-
pected.
The oil change indicator system will remind
you that it is time to take your vehicle in for
scheduled maintenance.
On non-instrument cluster display equipped
vehicles, “CHANgE OIL” will flash in the
instrument cluster odometer and a single
chime will sound, indicating that an oil
change is necessary.The oil change indicator message will illumi-
nate approximately 7,000 miles
(11,200 km) after the most recent oil change
was performed. Have your vehicle serviced as
soon as possible, within 500 miles (800 km).
However, an earlier oil change at 4,500 miles
(7,500 km) may be required if the vehicle is
operated under “Severe Duty Conditions”
later in this section.
NOTE:
• The oil change indicator message will not
monitor the time since the last oil change.
Change your vehicle's oil if it has been
6 months since your last oil change even if
the oil change indicator message is NOT
illuminated.
• Change your engine oil more often if you
drive your vehicle off-road for an extended
period of time.
• Under no circumstances should oil change
intervals exceed 7,500 miles (12,000 km)
or 6 months, whichever comes first.
Your authorized dealer will reset the oil
change indicator message after completing
the scheduled oil change.Once A Month Or Before A Long Trip
• 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 and
add if required.
• 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 and clean and tighten
the terminals as required.
• Check the fluid levels of coolant reservoir,
automatic transmission, brake master cyl-
inder and power steering and fill as needed.
• Check all lights and other electrical items
for correct operation.
SERVICING AND MAINTENANCE
170

Mileage or time passed (which-
ever comes first)
7,500
15,000
22,500
30,000
37,500
45,000
52,500
60,000
67,500
75,000
82,500
90,000
97,500
105,000
112,500
120,000
127,500
135,000
142,500
150,000
Or Months: 12 24 36 48 60 72 84 96 108 120 132 144 156 168 180 192 204 216 228 240
Or Kilometers:
12,000
24,000
36,000
48,000
60,000
72,000
84,000
96,000
108,000
120,000
132,000
144,000
156,000
168,000
180,000
192,000
204,000
216,000
228,000
240,000
Replace air conditioning/cabin
air filter.XXXXXX
Replace spark plugs ** X X
Replace accessory drive belt(s).X
Flush and replace the engine
coolant at 10 years or
150,000 miles (240,000 km)
whichever comes first.XX
Change the automatic transmis-
sion fluid and filter.X
Change automatic transmission
fluid and filter if using your ve-
hicle for any of the following:
trailer towing, snow plowing,
heavy loading, taxi, police, deliv-
ery 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
173

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

ENGINE COMPARTMENT3.6L Engine
1 — Integrated Power Module (Fuses) 7 — Washer Fluid Reservoir
2 — Battery8 — Engine Coolant Reservoir
3 — Engine Oil Dipstick 9 — Air Cleaner Filter
4 — Automatic Transmission Dipstick (Under Engine Cover) 10 — Coolant Pressure Cap
5 — Engine Oil Fill 11 — Power Steering Fluid Reservoir
6 — Brake Fluid Reservoir
SERVICING AND MAINTENANCE
180

WARNING!
• Use only manufacturer's recommended
brake fluid. Refer to “Fluids And Lubri-
cants” in “Technical Specifications” for
further information. Using the wrong
type of brake fluid can severely damage
your brake system and/or impair its per-
formance. The proper type of brake fluid
for your vehicle is also identified on the
original factory installed hydraulic mas-
ter cylinder reservoir.
• To avoid contamination from foreign
matter or moisture, use only new brake
fluid or fluid that has been in a tightly
closed container. Keep the master cylin-
der reservoir cap secured at all times.
Brake fluid in a open container absorbs
moisture from the air resulting in a lower
boiling point. This may cause it to boil
unexpectedly during hard or prolonged
braking, resulting in sudden brake fail-
ure. This could result in a collision.
• Overfilling the brake fluid reservoir can
result in spilling brake fluid on hot en-
gine parts, causing the brake fluid to
WARNING!
catch fire. Brake fluid can also damage
painted and vinyl surfaces, care should
be taken to avoid its contact with these
surfaces.
• Do not allow petroleum based fluid to
contaminate the brake fluid. Brake seal
components could be damaged, causing
partial or complete brake failure. This
could result in a collision.
Manual Transmission
Fluid Level Check
Check the fluid level by removing the fill
plug. The fluid level should be between the
bottom of the fill hole and a point not more
than 3/16 of an inch (4.76 mm) below the
bottom of the hole.
Add fluid, if necessary, to maintain the
proper level.
Automatic Transmission
Fluid Level Check — Gasoline Engine
It is best to check the fluid level when the
transmission is at normal operating tempera-
ture (approximately 180°F/82°C). This oc-
curs after at least 15 miles (25 km) of driv-
ing. At normal operating temperature, the
fluid cannot be held comfortably between the
fingertips.
Use the following procedure to check the
transmission fluid level properly:
1. Park the vehicle on level ground.
2. Remove the engine cover by pulling it up
off the mounting studs (two in the front
and two in the rear).
3. Run the engine at normal idle speed for at
least 60 seconds, and leave the engine
running for the rest of this procedure.
4. Fully apply the parking brake, and press
the brake pedal.
SERVICING AND MAINTENANCE
184

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

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

AirBag .............58, 92, 113
Automatic Headlights..........29
Back-Up.................149
Brake Assist Warning..........75
Bulb Replacement.......146, 147
Center Mounted Stop.........149
Cruise...................64
Daytime Running............29
Dimmer Switch, Headlight.......29
Exterior..................114
Fog .................29, 148
Hazard Warning Flasher........146
Headlight Leveling............30
Headlights.............28, 147
Headlight Switch.............28
High Beam................29
High Beam/Low Beam Select.....29
Hill Descent Control Indicator.....76
Instrument Cluster............28
Malfunction Indicator
(Check Engine)..............61
Passing..................29
Rear Fog.................148
Rear Servicing.............149
Rear Tail Lamps............149
Seat Belt Reminder...........60
Security Alarm..............61Service..............146, 147
Side Marker...............149
Tire Pressure Monitoring (TPMS) . . .62
Traction Control.............75
Turn Signal . . .29, 64, 114, 148, 149
Warning (Instrument Cluster
Description)................64
Locking Axle.................132
Lug Nuts...................208
Maintenance Free Battery.........186
Maintenance Schedule.......170, 175
Diesel..................175
Malfunction Indicator Light
(Check Engine)...............61
Manual Transmission........123, 184
Fluid Level Check...........184
Lubricant Selection..........211
Shift Speeds.............
.124
Media Center Radio.............220
Memory Feature (Memory Seat)......21
Memory Seat..................21
Memory Seats And Radio..........21
Mirrors.....................28
Heated...................28
Modifications/Alterations, Vehicle......4
Monitor, Tire Pressure System.......77Mopar.....................212
Mopar Accessories.............212
Navigation..................229
Navigation System (Uconnect GPS) . . .229
Navigation Voice Prompt Volume.....229
New Vehicle Break-In Period.......121
Occupant Restraints.............84
Octane Rating, Gasoline (Fuel)......209
Oil Change Indicator..........58, 176
Oil Change Indicator, Reset.....58, 176
Oil, Engine
Capacity.................210
Change Interval..............58
Dipstick.................182
Pressure Warning Light.........60
Recommendation...........210
Viscosity.................210
Oil Pressure Light...............60
Onboard Diagnostic System.........64
Operating Precautions............64
Operator Manual (Owner's Manual).....4
Outlet
Power...................52
Overheating, Engine............163
INDEX
262