steering JEEP WRANGLER UNLIMITED 2013 Service Manual

Frontal Area
The frontal area is the maximum height multiplied by the
maximum width of the front of a trailer.
Trailer Sway Control – If Equipped
The trailer sway control is a telescoping link that can be
installed between the hitch receiver and the trailer
tongue. It typically provides adjustable friction associ-
ated with the telescoping motion to dampen any un-
wanted trailer swaying motions while traveling.
Weight-Carrying Hitch
A weight-carrying hitch supports the trailer tongue
weight, just as if it were luggage located at a hitch ball or
some other connecting point of the vehicle. These kinds
of hitches are the most popular on the market today and
they are commonly used to tow small- and medium-
sized trailers. Weight-Distributing Hitch
A weight-distributing system works by applying lever-
age through spring (load) bars. They are typically used
for heavier loads to distribute trailer tongue weight to the
tow vehicle’s front axle and the trailer axle(s). When used
in accordance with the manufacturer’s directions, it pro-
vides for a more level ride, offering more consistent
steering and brake control thereby enhancing towing
safety. The addition of a friction / hydraulic sway control
also dampens sway caused by traffic and crosswinds and
contributes positively to tow vehicle and trailer stability.
Trailer sway control and a weight distributing (load
equalizing) hitch are recommended for heavier Tongue
Weights (TW) and may be required depending on vehicle
and trailer configuration / loading to comply with Gross
Axle Weight Rating (GAWR) requirements.
5 STARTING AND OPERATING 517

CAUTION!Accessories that can be plugged into the vehicle
power outlets draw power from the vehicle’s battery,
even when not in use (i.e., cellular phones, etc.).
Eventually, if plugged in long enough, the vehicle’s
battery will discharge sufficiently to degrade battery
life and/or prevent the engine from starting.
FREEING A STUCK VEHICLE
If your vehicle becomes stuck in mud, sand or snow, it
can often be moved using a rocking motion. Turn the
steering wheel right and left to clear the area around the
front wheels. Then shift back and forth between DRIVE
and REVERSE (with automatic transmission) or 2nd gear
and REVERSE (with manual transmission), while gently pressing the accelerator. Use the least amount of accel-
erator pedal pressure that will maintain the rocking
motion, without spinning the wheels, or racing the
engine.
CAUTION!Racing the engine or spinning the wheels may lead to
transmission overheating and failure. Allow the en-
gine to idle with the shift lever in NEUTRAL for at
least one minute after every five rocking-motion
cycles. This will minimize overheating and reduce
the risk of transmission failure during prolonged
efforts to free a stuck vehicle.
NOTE: Press the  ESC Off  switch, to place the Electronic
Stability Control (ESC) system in  Partial Off  mode,
before rocking the vehicle. Refer to “Electronic Brake552 WHAT TO DO IN EMERGENCIES

ENGINE COMPARTMENT — 3.6L
1 — Integrated Power Module (Fuses) 7 — Washer Fluid Reservoir
2 — Battery 8 — 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
7 MAINTAINING YOUR VEHICLE 561

CAUTION! (Continued)• Your vehicle has been built with improved fluids
that protect the performance and durability of your
vehicle and also allow extended maintenance inter-
vals. Do not use chemical flushes in these compo-
nents as the chemicals can damage your engine,
transmission, power steering or air conditioning.
Such damage is not covered by the New Vehicle
Limited Warranty. If a flush is needed because of
component malfunction, use only the specified
fluid for the flushing procedure. Engine Oil
Checking Oil Level
To assure proper lubrication of your vehicle’s engine, the
engine oil must be maintained at the correct level. The
engine oil level should be checked five minutes after a
warmed up engine has been shut off.
Checking the oil while the vehicle is on level ground will
improve the accuracy of the oil level readings. Always
maintain the oil level within the SAFE zone on the
dipstick. Adding 1 U.S. Quart (0.95L) of oil when the
reading is at the bottom of the SAFE zone will result in a
reading at the top of the safe zone on these engines.566 MAINTAINING YOUR VEHICLE

Chassis
Component Fluid, Lubricant, or Genuine Part
Automatic Transmission –
If Equipped MOPAR  ATF+4  Automatic Transmission Fluid or equivalent licensed
ATF+4  product.
Manual Transmission –
If Equipped MOPAR  Manual Transmission Lubricant or equivalent (meeting the require-
ments of Chrysler Material Standard MS-9224).
Transfer Case MOPAR  ATF+4  Automatic Transmission Fluid or equivalent licensed
ATF+4  product.
Axle Differential (Front) MOPAR  Gear & Axle Lubricant (SAE 80W-90) (API GL-5) or equivalent.
Axle Differential (Rear) 226 RBI (Model 44) – MOPAR  Gear & Axle Lubricant (SAE 80W-90) (API GL-5)
or equivalent. For trailer towing, use MOPAR  Synthetic Gear & Axle Lubricant
(SAE 75W-140) or equivalent. Models equipped with Trac-Lok™ require an additive.
Brake Master Cylinder MOPAR  DOT 3 Brake Fluid, SAE J1703 should be used. If DOT 3, SAE J1703
brake fluid is not available, then DOT 4 is acceptable. Use only recommended
brake fluids.
Power Steering Reservoir MOPAR  Power Steering Fluid +4, MOPAR  ATF+4  Automatic Transmission
Fluid or equivalent licensed ATF+4  product.612 MAINTAINING YOUR VEHICLE

Once A Month Or Before A Long Trip:
• Check engine oil level
• Check windshield washer fluid level
• Check the tire inflation pressures and look for unusual
wear or damage
• Check the fluid levels of the coolant reservoir, brake
master cylinder, power steering and transmission as
needed
• Check function of all interior and exterior lights
Required Maintenance Intervals .
Refer to the maintenance schedules on the following
page for the required maintenance intervals. At Every Oil Change Interval As Indicated By Oil
Change Indicator System:
• Change oil and filter
• Rotate the tires. Rotate at the first sign of irregu-
lar wear, even if it occurs before the oil indicator
system turns on.
• Inspect battery and clean and tighten terminals as
required
• Inspect automatic transmission fluid if equipped
with dipstick
• Inspect brake pads, shoes, rotors, drums, hoses
and park brake
• Inspect engine cooling system protection and
hoses
• Inspect exhaust system
• Inspect engine air cleaner if using in dusty or
off-road conditions
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SMAINTENANCE SCHEDULES 615

Fluid Level Check ..................... .586
Fluid Type .......................... .585
Special Additives ...................... .585
Autostick .............................. .426
Auxiliary Electrical Outlet (Power Outlet) ....... .182
Auxiliary Power Outlet .................... .182
Axle Lock .............................. .433
Battery ................................ .570
Keyless Transmitter Replacement (RKE) ........27
Belts, Seat ...............................48
Body Mechanism Lubrication ................ .572
Brake Assist System ...................... .457
Brake Control System, Electronic ............. .456
Brake System ........................... .583
Anti-Lock (ABS) ...................... .455
Master Cylinder ....................... .583
Parking ............................. .452
Warning Light ........................ .302 Brake/Transmission Interlock ................ .419
Break-In Recommendations, New Vehicle .........98
Bulb Replacement ........................ .606
Bulbs, Light ............................ .103
Calibration, Compass ..................... .318
Capacities, Fluid ......................... .610
Caps, Filler
Fuel ............................... .510
Power Steering ....................... .451
Radiator (Coolant Pressure) .............. .580
Carbon Monoxide Warning ................. .100
Cargo Light ............................ .172
Car Washes ............................ .592
Cellular Phone ...........................114
Center High Mounted Stop Light ............. .609
Certification Label ........................ .513
Chains, Tire ............................ .492
Changing A Flat Tire ...................... .540
10 INDEX 635

Cruise Light ............................ .306
Cupholders ............................ .188
Customer Assistance ...................... .625
Data Recorder, Event .......................75
Daytime Running Lights ................... .171
Dealer Service ........................... .564
Defroster, Rear Window .................... .294
Defroster, Windshield ..................... .101
Delay (Intermittent) Wipers ................. .174
Diagnostic System, Onboard ................ .562
Dimmer Switch, Headlight .................. .170
Dipsticks
Oil (Engine) ......................... .566
Power Steering ....................... .451
Disabled Vehicle Towing ................... .556
Disarming, Theft System .....................20
Disposal
Antifreeze (Engine Coolant) .............. .581 Door Locks ..............................36
Door Locks, Automatic ......................39
Doors ..................................31
Driver’s Seat Back Tilt ..................... .154
Driving ............................... .436
Dual Top .............................. .191
Electrical Outlet, Auxiliary (Power Outlet) ....... .182
Electrical Power Outlets .................... .182
Electric Remote Mirrors .....................113
Electronic Brake Control System .............. .456
Brake Assist System .................... .457
Electronic Roll Mitigation ................ .462
Traction Control System ................. .457
Electronic Roll Mitigation (ERM) ............. .462
Electronic Speed Control (Cruise Control) ....... .178
Electronic Stability Control (ESC) ............. .463
Electronic Throttle Control Warning Light ....... .314
Electronic Vehicle Information Center (EVIC) ..... .315
10 INDEX 637

Filters
Air Cleaner .......................... .569
Air Conditioning ...................... .402
Engine Oil ........................... .569
Engine Oil Disposal .................... .568
Flashers
Hazard Warning ...................... .538
Turn Signal .......................... .103
Flash-To-Pass ........................... .170
Flooded Engine Starting .....................411
Fluid Capacities ......................... .610
Fluid Leaks ............................ .103
Fluid Level Checks ....................... .590
Engine Oil ........................... .566
Manual Transmission ................... .589
Power Steering ....................... .451
Fluids, Lubricants and Genuine Parts ...........611
Fog Lights ............................. .170
Fog Light Service ........................ .608 Fold and Tumble Rear Seat ................. .161
Folding Rear Seat ........................ .164
Folding Windshield ....................... .286
Four-Way Hazard Flasher .................. .538
Four Wheel Drive ........................ .428
Four Wheel Drive Operation ................ .428
Freeing A Stuck Vehicle .................... .552
Front Axle (Differential) .................... .590
Fuel .................................. .506
Adding ............................. .510
Additives ........................... .509
Clean Air ........................... .507
Ethanol ............................. .507
Filler Cap (Gas Cap) ................... .510
Gasoline ............................ .506
Gauge .............................. .300
Materials Added ...................... .509
Methanol ........................... .507
Octane Rating ........................ .506
10 INDEX 639

Oil Pressure Light ........................ .301
Onboard Diagnostic System ................. .562
Operating Precautions ..................... .562
Operator Manual (Owner’s Manual) .............6
Outside Rearview Mirrors ...................112
Overdrive .............................. .427
Overdrive OFF Switch ..................... .427
Overheating, Engine ...................... .305
Owner’s Manual (Operator Manual) .............6
Paint Care ............................. .591
Panic Alarm ..............................24
Parking Brake ........................... .452
Passing Light ........................... .170
Personal Settings ......................... .331
Pets ....................................98
Pets, Transporting ..........................98
Phone, Cellular ...........................114
Phone, Hands-Free (Uconnect™) ...............114 Placard, Tire and Loading Information ......... .478
Power
Door Locks ............................38
Inverter ............................. .186
Mirrors ..............................113
Steering ............................ .450
Windows .............................41
Pregnant Women and Seat Belts ................61
Preparation for Jacking .................... .542
Pretensioners
Seat Belts .............................59
Programmable Electronic Features ............ .331
Radial Ply Tires ......................... .485
Radiator Cap (Coolant Pressure Cap) .......... .580
Radio Operation ......................... .391
Rear Axle (Differential) .................... .590
Rear Swing Gate ...........................44
Rear Window Defroster .................... .294
10 INDEX 645