axle fluid JEEP WRANGLER 2016 JK / 3.G Owners Manual

AUTOSTICK ......................... .451
▫ Operation .......................... .452
 FOUR–WHEEL DRIVE OPERATION
(COMMAND-TRAC I OR ROCK-TRAC) ......453
▫ Operating Instructions/Precautions ........454
▫ Shift Positions ....................... .456
▫ Shifting Procedure .....................457
 TRAC-LOK REAR AXLE — IF EQUIPPED .....458
 AXLE LOCK (TRU–LOK) — RUBICON
MODELS ........................... .459
 ELECTRONIC SWAY BAR DISCONNECT — IF
EQUIPPED .......................... .460
 ON-ROAD DRIVING TIPS ................462
 OFF-ROAD DRIVING TIPS ................463 ▫
Side Step Removal — If Equipped ..........463
▫ The Basics Of Off-Road Driving ...........464
▫ When To Use 4L (Low) Range .............465
▫ Simultaneous Brake And Throttle Operation. . .465
▫ Driving In Snow, Mud And Sand ..........466
▫ Crossing Obstacles (Rocks And Other High
Points) ............................ .467
▫ Hill Climbing ....................... .470
▫ Driving Through Water .................472
▫ After Driving Off-Road .................475
 POWER STEERING .....................476
▫ Power Steering Fluid Check ..............477
 PARKING BRAKE ..................... .478
430 STARTING AND OPERATING

your vehicle’s abilities and be able to recover it if
something goes wrong. You should never stop or shut a
vehicle off when crossing deep water unless you ingested
water into the engine air intake. If the engine stalls, do
not attempt to restart it. Determine if it has ingested
water first. The key to any crossing is low and slow. Shift
into first gear (manual transmission), or DRIVE (auto-
matic transmission), with the transfer case in the 4L
(Low) position and proceed very slowly with a constant
slow speed {3 to 5 mph (5 to 8 km/h) maximum} and
light throttle. Keep the vehicle moving; do not try to
accelerate through the crossing. After crossing any water
higher than the bottom of the axle differentials, you
should inspect all of the vehicle fluids for signs of water
ingestion.CAUTION!
•Water ingestion into the axles, transmission, trans-
fer case, engine or vehicle interior can occur if you
drive too fast or through too deep of water. Water
can cause permanent damage to engine, driveline
or other vehicle components, and your brakes will
be less effective once wet and/or muddy.
• This vehicle is capable of crossing through water at
a depth of 30 inches (76 cm) at speeds no greater
than 5 mph (8 km/h). Water ingestion can occur
causing damage to your vehicle.
Before You Cross Any Type Of Water
As you approach any type of water, you need to determine
if you can cross it safely and responsibly. If necessary, get
out and walk through the water or probe it with a stick.
You need to be sure of its depth, approach angle, current
and bottom condition. Be careful of murky or muddy
5
STARTING AND OPERATING 473

•After extended operation in mud, sand, water, or
similar dirty conditions, have the radiator, fan, brake
rotors, wheels, brake linings, and axle yokes inspected
and cleaned as soon as possible.
WARNING!
Abrasive material in any part of the brakes may cause
excessive wear or unpredictable braking. You might
not have full braking power when you need it to
prevent a collision. If you have been operating your
vehicle in dirty conditions, get your brakes checked
and cleaned as necessary.
• If you experience unusual vibration after driving in
mud, slush or similar conditions, check the wheels for
impacted material. Impacted material can cause a
wheel imbalance and freeing the wheels of it will
correct the situation.
POWER STEERING
The standard power steering system will give you good
vehicle response and increased ease of maneuverability
in tight spaces. The system will provide mechanical
steering capability if power assist is lost.
If for some reason the power assist is interrupted, it will
still be possible to steer your vehicle. Under these condi-
tions, you will observe a substantial increase in steering
effort, especially at very low vehicle speeds and during
parking maneuvers.
NOTE:
• Increased noise levels at the end of the steering wheel
travel are considered normal and do not indicate that
there is a problem with the power steering system.
• Upon initial start-up in cold weather, the power steer-
ing pump may make noise for a short amount of time.
This is due to the cold, thick fluid in the steering
476 STARTING AND OPERATING

rear axle systems (GAWR). Total load must be limited so
GVWR and front and rear GAWR are not exceeded.
Payload
The payload of a vehicle is defined as the allowable load
weight a truck can carry, including the weight of the
driver, all passengers, options and cargo.
Gross Axle Weight Rating (GAWR)
The GAWR is the maximum permissible load on the front
and rear axles. The load must be distributed in the cargo
area so that the GAWR of each axle is not exceeded.
Each axle GAWR is determined by the components in the
system with the lowest load carrying capacity (axle,
springs, tires or wheels). Heavier axles or suspension
components sometimes specified by purchasers for in-
creased durability does not necessarily increase the vehi-
cle’s GVWR.
Tire Size
The tire size on the Vehicle Certification Label represents
the actual tire size on your vehicle. Replacement tires
must be equal to the load capacity of this tire size.
Rim Size
This is the rim size that is appropriate for the tire size
listed.
Inflation Pressure
This is the cold tire inflation pressure for your vehicle for
all loading conditions up to full GAWR.
Curb Weight
The curb weight of a vehicle is defined as the total weight
of the vehicle with all fluids, including vehicle fuel, at full
capacity conditions, and with no occupants or cargo
loaded into the vehicle. The front and rear curb weight
542 STARTING AND OPERATING

NOTE:Remember that everything put into or on the
trailer adds to the load on your vehicle. Also, additional
factory-installed options or dealer-installed options must
be considered as part of the total load on your vehicle.
Refer to the “Tire And Loading Information” placard for
the maximum combined weight of occupants and cargo
for your vehicle.
Towing Requirements
To promote proper break-in of your new vehicle drive-
train components, the following guidelines are recom-
mended:
NOTE: Trailer towing requires special rear axle lubricant.
Refer to “Fluids, Lubricants, And Genuine Parts” in
“Maintaining Your Vehicle” for the correct fluid type.
CAUTION!
• Do not tow a trailer at all during the first 500 miles
(805 km) the new vehicle is driven. The engine, axle
or other parts could be damaged.
• Then, during the first 500 miles (805 km) that a
trailer is towed, do not drive over 50 mph (80 km/h)
and do not make starts at full throttle. This helps
the engine and other parts of the vehicle wear in at
the heavier loads.
WARNING!
Improper towing can lead to a collision. Follow these
guidelines to make your trailer towing as safe as
possible:
• Make certain that the load is secured in the trailer
and will not shift during travel. When trailering
(Continued)
556 STARTING AND OPERATING

▫Automatic Transmission — If Equipped .....632
▫ Clutch Hydraulic System
(Manual Transmission) — If Equipped .......635
▫ Manual Transmission — If Equipped .......636
▫ Transfer Case ....................... .637
▫ Front/Rear Axle Fluid ..................638
▫ Appearance Care And Protection From
Corrosion .......................... .638
 FUSES ............................. .647
▫ Totally Integrated Power Module ..........648
 VEHICLE STORAGE ....................654
 REPLACEMENT BULBS .................654
 BULB REPLACEMENT ..................656 ▫
Headlamp ......................... .656
▫ Front Park/Turn Signal .................657
▫ Front Side Marker .....................657
▫ Front Fog Lamp ..................... .657
▫ Rear Tail, Stop, Turn Signal, And
Backup Lamp ....................... .658
▫ Center High-Mounted Stop Lamp
(CHMSL) .......................... .658
 FLUID CAPACITIES ....................659
 FLUIDS, LUBRICANTS, AND GENUINE
PARTS ............................. .660
▫ Engine ............................ .660
▫ Chassis ........................... .662
594 MAINTAINING YOUR VEHICLE

Front/Rear Axle Fluid
For normal service, periodic fluid level checks are not
required. When the vehicle is serviced for other reasons
the exterior surfaces of the axle assembly should be
inspected. If gear oil leakage is suspected inspect the
fluid level. Refer to “Fluids, Lubricants, and Genuine
Parts” in “Maintaining Your Vehicle” for further informa-
tion.
Fluid Level Check
Lubricant should be at the bottom edge of the oil fill hole.
Adding Fluid
Add lubricant only at the fill hole and only to the level
specified above.
Selection Of Lubricant
Use only manufacturer’s recommended fluid. Refer to
“Fluids, Lubricants, And Genuine Parts” in “Maintaining
Your Vehicle” for further information.
Appearance Care And Protection From Corrosion
Protection Of Body And Paint From Corrosion
Vehicle body care requirements vary according to geo-
graphic locations and usage. Chemicals that make roads
passable in snow and ice and those that are sprayed on
trees and road surfaces during other seasons are highly
corrosive to the metal in your vehicle. Outside parking,
which exposes your vehicle to airborne contaminants,
road surfaces on which the vehicle is operated, extreme
hot or cold weather and other extreme conditions will
have an adverse effect on paint, metal trim, and under-
body protection.
638 MAINTAINING YOUR VEHICLE

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 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.
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.
662 MAINTAINING YOUR VEHICLE

Mileage or time passed (whichevercomes first)
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000
Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000
Additional Inspections
Inspect the CV/Universal joints. X X X X XXX
Inspect front suspension, tie rod ends,
and replace if necessary. XXX X X X X
Inspect the front and rear axle fluid. X XX X
Inspect the brake linings, replace as
necessary XXX X X X X
Adjust parking brake on vehicles
equipped with four wheel disc brakes. XXX X X X X
Inspect transfer case fluid. XX X
Additional Maintenance
Replace engine air cleaner filter. XX X X X
8
MAINTENANCE SCHEDULES 667

Mileage or time passed (whichevercomes first)
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000
Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000
Change front and rear axle fluid if using
your vehicle for police, taxi, fleet, off-
road or frequent trailer towing. XX X
** The spark plug change interval is mileage based only,
yearly intervals do not apply.
WARNING!
•
You can be badly injured working on or around a
motor vehicle. Do only service work for which you
have the knowledge and the right equipment. If
(Continued)
WARNING! (Continued)
you have any doubt about your ability to perform a
service job, take your vehicle to a competent me-
chanic.
• Failure to properly inspect and maintain your ve-
hicle could result in a component malfunction and
effect vehicle handling and performance. This
could cause an accident.
670 MAINTENANCE SCHEDULES