transmission JEEP WRANGLER 2017 JK / 3.G Repair Manual

Transfer Case
Fluid Level Check
The fluid level should be to the bottom edge of the fill hole
(A) when the vehicle is in a level position.
Adding Fluid
Add fluid at the filler hole, until it runs out of the hole,
when the vehicle is in a level position.
Drain
First remove the fill plug (B), then the drain plug (C). The
recommended tightening torque for the drain and fill plugs
is 15 to 25 ft lbs (20 to 34 N·m).
CAUTION!
When replacing the plugs, do not overtighten them.
You could damage them and cause them to leak.
Selection Of Lubricant
Use only the manufacturer’s recommended fluid. Refer to
“Fluids And Lubricants” in “Technical Specifications” for
further information.
Automatic Transmission
Selection Of Lubricant
It is important to use the proper transmission fluid to
ensure optimum transmission performance and life. Use
only the manufacturer’s specified transmission fluid. Refer
to “Fluids And Lubricants” in “Technical Specifications”
for fluid specifications. It is important to maintain the
transmission fluid at the correct level using the recom-
mended fluid.Transfer Case
402 SERVICING AND MAINTENANCE

NOTE:No chemical flushes should be used in any trans-
mission; only the approved lubricant should be used.
CAUTION!
Using a transmission fluid other than the manufactur-
er ’s recommended fluid may cause deterioration in
transmission shift quality and/or torque converter
shudder. Refer to “Fluids And Lubricants” in “Techni-
cal Specifications” for fluid specifications.
Special Additives
The manufacturer strongly recommends against using any
special additives in the transmission. Automatic Transmis-
sion Fluid (ATF) is an engineered product and its perfor-
mance may be impaired by supplemental additives. There-
fore, do not add any fluid additives to the transmission.
The only exception to this policy is the use of special dyes
for diagnosing fluid leaks. Avoid using transmission seal-
ers as they may adversely affect seals.
CAUTION!
Do not use chemical flushes in your transmission as
the chemicals can damage your transmission compo-
nents. Such damage is not covered by the New Vehicle
Limited Warranty.
Fluid Level Check
It is best to check the fluid level when the transmission is
at normal operating temperature (approximately 180°F/
82°C). This occurs after at least 15 miles (25 km) of driving.
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.
8
SERVICING AND MAINTENANCE 403

5. Place the gear selector momentarily into each gearposition (allowing time for the transmission to fully
engage in each position), ending with the transmission
in PARK.
6. Remove the dipstick, wipe it clean and reinsert it until seated.
7. Remove the dipstick again and note the fluid level on both sides. The fluid level reading is only valid if there
is a solid coating of oil on both sides of the dipstick.
Note that the holes in the dipstick will be full of fluid if
the actual level is at or above the hole. The fluid level
should be between the HOT (upper) reference holes on
the dipstick at normal operating temperature. If the
fluid level is low, add fluid through the dipstick tube to
bring it to the proper level. Do not overfill.Use ONLY
the specified fluid (refer to Fluids And Lubricants
under “Technical Specifications” for fluid specifica-
tions). After adding any quantity of oil through the
dipstick tube, wait a minimum of two minutes for the oil
to fully drain into the transmission before rechecking
the fluid level. NOTE:
•The holes in the dipstick will be full of fluid if the
actual level is at or above the hole.
• If it is necessary to check the transmission below the
operating temperature, the fluid level should be be-
tween the two COLD (lower) holes on the dipstick
with the fluid at approximately 80°F (27°C). If the fluid
level is correctly established at 80° F (27°C), it should
be between the HOT (upper) reference holes when the
transmission reaches 180° F (82°C). Remember it is best
to check the level at the normal operating temperature.
CAUTION!
If the fluid temperature is below 50°F (10°C) it may not
register on the dipstick. Do not add fluid until the
temperature is elevated enough to produce an accurate
reading. Run the engine at idle, in PARK, to warm the
fluid.
8. Reinstall the engine cover and snap it down securely onto the four mounting studs.
9. Check for leaks. Release the parking brake.
404 SERVICING AND MAINTENANCE

NOTE:To prevent dirt and water from entering the
transmission after checking or replenishing fluid, make
sure that the dipstick cap is properly reseated. It is normal
for the dipstick cap to spring back slightly from its fully
seated position, as long as its seal remains engaged in the
dipstick tube.
Fluid And Filter Changes
Refer to the “Maintenance Plan” for the proper mainte-
nance intervals.
In addition, change the fluid and filter if the fluid becomes
contaminated (with water, etc.), or if the transmission is
disassembled for any reason.
Manual Transmission — If Equipped
Selection Of Lubricant
Use only manufacturer’s recommended manual transmis-
sion fluid. Refer to “Fluids And Lubricants” in “Technical
Specifications” for further information.
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.
Frequency Of Fluid Change
Under normal operating conditions, the fluid installed at
the factory will give satisfactory lubrication for the life of
the vehicle. If the fluid becomes contaminated with water,
it should be changed immediately. Otherwise, change the
fluid as recommended in the Maintenance Plan. Refer to
the “Maintenance Plan” for the proper maintenance inter-
vals.
RAISING THE VEHICLE
In the case where it is necessary to raise the vehicle, go to
an authorized dealer or service station.
TIRES
Tire Safety Information
Tire safety information will cover aspects of the following
information: Tire Markings, Tire Identification Numbers,
Tire Terminology and Definitions, Tire Pressures, and Tire
Loading.
8
SERVICING AND MAINTENANCE 405

Chassis
ComponentFluid, 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 recommend MOPAR ATF+4 fluid.
Manual Transmission – If Equipped We recommend you use MOPAR Manual Transmission
Lubricant meeting the requirements of FCA Material Stan-
dard MS-9224.
Transfer Case We recommend you use MOPAR ATF+4 Automatic Trans-
mission 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 equiva-
lent. For trailer towing, use MOPAR Synthetic Gear & Axle
Lubricant (SAE 75W-140). Models equipped with Trac-Lok
require an additive.
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.
Power Steering Reservoir We recommend you use MOPAR Power Steering Fluid +4,
MOPAR ATF+4 Automatic Transmission Fluid.
9
TECHNICAL SPECIFICATIONS 445

About Your Brakes........................ .436
Adding Engine Coolant (Antifreeze) .............397
Adding Fuel ............................. .312
Additives, Fuel ........................... .438
AirBag ................................ .250
Advance Front Air Bag ....................250
Air Bag Operation ....................... .252
Enhanced Accident Response .............256, 368
Event Data Recorder (EDR) .................368
FrontAirBag .......................... .250
If A Deployment Occurs ....................255
Knee Impact Bolsters ..................... .252
Maintaining Your Air Bag System .............257
Transporting Pets ....................... .278
Air Bag Light ......................... .196, 280
Air Bag Maintenance ....................... .257
Air Cleaner, Engine (Engine Air Cleaner Filter) ......381
Air Conditioner Maintenance ..................385
Air Conditioning Filter ....................69, 387
Air Conditioning, Operating Tips ................68
Air Conditioning Refrigerant ...............385, 386
Air Conditioning System .....................385
Air Filter ............................... .381
Air Pressure, Tires ......................... .414
Alarm (Security Alarm) ....................26, 201 Alterations/Modifications, Vehicle
................7
Antenna, Satellite Radio ..................... .465
Antifreeze (Engine Coolant) ................396, 442
Disposal .............................. .398
Anti-Lock Brake System (ABS) .................214
Anti-Lock Warning Light .....................202
Arming System (Security Alarm) ................27
Assistance Towing ......................... .483
Assist, Hill Start .......................... .216
Automatic Dimming Mirror ....................50
Automatic Headlights ........................53
Automatic Oil Change Indicator ................195
Automatic
Transmission ..................295, 405
Adding Fluid .......................... .405
Fluid And Filter Changes ...................405
Fluid Change .......................... .405
Fluid Level Check .....................402, 403
Fluid Type ......................... .402, 445
Special Additives ........................ .403
Autostick ............................... .300
Auxiliary Electrical Outlet (Power Outlet) .........176
Auxiliary Power Outlet ..................... .176
Axle Fluid .............................. .445
Axle Lock ............................... .305
510 INDEX

Battery.............................. .199, 378
Charging System Light ....................199
Keyless Key Fob Replacement ................20
Belts, Seat ............................... .280
Body Mechanism Lubrication ..................389
B-Pillar Location .......................... .409
Brake Assist System ........................ .216
Brake Control System, Electronic ................215
Brake Fluid .......................... .400, 445
Brake System ......................... .400, 436
Anti-Lock (ABS) ........................ .436
Fluid Check ........................... .400
Master Cylinder ........................ .400
Parking .............................. .288
Warning Light .......................... .197
Brake/Transmission Interlock ..................295
Bulb Replacement ...................... .342, 343
Bulbs, Light .......................... .282, 342
Calibration, Compass ....................... .188
Capacities, Fluid .......................... .442
Caps, Filler Fuel ................................. .312
Oil (Engine) ........................... .377
Power Steering ......................... .308Radiator (Coolant Pressure)
.................398
Carbon Monoxide Warning ................279, 441
Cargo Light ...............................56
Car Washes .............................. .428
Cellular Phone ........................ .471, 472
Center High Mounted Stop Light ...............346
Certification Label ......................... .313
Chains, Tire ............................. .423
Changing A Flat Tire .....................353, 405
Check Engine Light (Malfunction Indicator Light) . . . .211
Checking Your Vehicle For Safety ...............279
Checks, Safety ............................ .279
Child

Restraint ........................... .259
Child Restraints Booster Seats ........................... .262
Child Restraints ........................ .259
Child Seat Installation .....................275
How To Stow An Unused ALR Seat Belt ........272
Infants And Child Restraints ................261
LATCH Positions ........................ .266
Locating The LATCH Anchorages .............269
Lower Anchors And Tethers For Children .......265
Older Children And Child Restraints ...........261
Seating Positions ........................ .264
Child Safety Locks ..........................31
12
INDEX 511

FiltersAir Cleaner ............................ .381
Air Conditioning ..................... .69, 387
Engine Oil ......................... .381, 443
Engine Oil Disposal ...................... .381
Flashers Hazard Warning ........................ .342
Turn Signal ..................... .282, 344, 345
Flash-To-Pass ..............................53
Flooded Engine Starting ..................... .286
Fluid, Brake ............................. .445
Fluid Capacities ........................... .442
Fluid Leaks .............................. .282
Fluid Level Checks ........................ .401
Brake ................................ .400
Engine Oil ............................ .378
Manual Transmission ..................... .405
Power Steering ......................... .308
Fluids And Lubricants ...................... .443
Fog Lights ............................ .53, 344
Fog Light Service .......................... .344
Fold And Tumble Rear Seat ....................42
Folding Rear Seat ...........................44
Folding Windshield ........................ .166
Four-Way Hazard Flasher .....................342 Four Wheel Drive
......................... .301
Operation ............................. .301
Shifting .............................. .301
Systems .............................. .301
Four Wheel Drive Operation ..................301
Freeing A Stuck Vehicle ..................... .363
Front Axle (Differential) ..................... .401
Fuel ................................... .438
Adding .............................. .312
Additives ............................. .438
Clean Air ............................. .438
Ethanol .............................. .439
Filler
Cap (Gas Cap) ..................... .312
Gasoline .............................. .438
Gauge ............................... .202
Materials Added ........................ .438
Methanol ............................. .439
Octane Rating ....................... .438, 443
Requirements .......................... .442
Specifications .......................... .443
Tank Capacity .......................... .442
Fueling ................................. .312
Fuses .................................. .346
Gas Cap (Fuel Filler Cap) ..............211,312, 313
514 INDEX

Security Alarm......................... .201
Service ............................... .343
Side Marker ........................... .345
Tire Pressure Monitoring (TPMS) .............204
Traction Control ........................ .223
Turn Signal ....................54, 282, 344, 345
Loading Vehicle ........................... .313
Tires................................. .409
Locking Axle ............................. .305
Locks Child Protection ..........................31
Door ..................................28
Power Door .............................30
Lubrication, Body ......................... .389
Lug Nuts ............................... .436
Maintenance Free Battery .....................378
Maintenance Schedule ...................... .371
Malfunction Indicator Light (Check Engine) . . . .203, 212
Manual, Service ........................... .506
Manual Transmission ....................290, 405
Fluid Level Check ....................... .405
Lubricant Selection ....................405, 445
Shift Speeds ........................... .291
Methanol ............................... .439Mirrors
..................................49
Automatic Dimming .......................50
Electric Powered ..........................51
Electric Remote ...........................51
Heated .................................51
Outside ................................50
Rearview ...............................49
Vanity .................................52
Modifications/Alterations, Vehicle ................7
Modular Hard Top ..........................83
Monitor, Tire Pressure System ..................227
MOPAR Parts ............................ .505
New Vehicle Break-In Period ..................288
Occupant Restraints ........................ .236
Octane Rating, Gasoline (Fuel) ..............438, 443
Oil Change Indicator ....................... .195
Oil

Change Indicator, Reset ...................195
Oil, Engine ........................... .380, 443
Capacity .............................. .442
Change Interval ..................... .195, 380
Dipstick .............................. .378
Disposal .............................. .381
Filter ............................. .381, 443
12
INDEX 517

Front Seat...................... .237, 239, 241
Inspection ............................. .280
Operating Instructions .....................241
Pregnant Women ........................ .245
Pretensioners .......................... .245
Rear Seat ............................. .239
Reminder ............................. .201
Untwisting Procedure .....................243
Seats ....................................37
Adjustment .............................37
Easy Entry ..............................39
Fold And Tumble Rear .....................42
Heated .................................45
Height Adjustment ........................38
Rear Folding .............................44
Removal ...............................43
Seatback Release ..........................38
Tilting .................................38
Security Alarm ......................... .26, 201
Security System ............................26
Selection Of Coolant (Antifreeze) ...............443
Sentry Key (Immobilizer) ......................24
Sentry Key Programming ......................25
Sentry Key Replacement ......................25
Service Assistance ......................... .502Service Contract
.......................... .504
Service Manuals .......................... .506
Settings, Personal ......................... .191
Setting The Clock ...................... .449, 457
Shifting ................................ .293
Automatic Transmission ....................293
Manual Transmission ..................... .290
Transfer Case, Shifting Into Transfer Case
Neutral (N) ............................ .328
Transfer Case, Shifting Out Of Transfer Case
Neutral (N) ............................ .329
Shift Lever Override ....................... .362
Shoulder Belts ............................ .239
Signals, Turn .....................54, 282, 344, 345
Snow Chains (Tire Chains) ....................423
Snow Tires .............................. .420
Soft

Top ............................. .100, 131
Spare Tire ..................... .354, 420, 421, 422
Spark Plugs ............................. .443
Specifications Fuel (Gasoline) ......................... .443
Oil.................................. .443
Speed Control Accel/Decel ............................311
520 INDEX