2015 JEEP WRANGLER brake light

However, the driver can override HDC operation by
applying the brake to slow the vehicle down below the
HDC control speed. If more speed is desired during HDC
control, the accelerator pedal will increase vehicle speed
in the usual manner. When either the brake or the
accelerator is released, HDC will control the vehicle at the
original set speed.
Enabling HDC
1. Shift the transfer case into 4WD LOW range. Refer to
“Four-Wheel Drive Operation” in “Starting and Oper-
ating” for further information.
2. Press the “Hill Descent” button. The “Hill Descent
Control Indicator Light” in the instrument cluster will
turn on solid.
NOTE:
•If the transfer case is not in 4WD LOW range, the
“Hill Descent Control Indicator Light” will flash for
five seconds and HDC will not be enabled.
•If the ESC senses that the brakes are overheating the
“Hill Descent Control Indicator Light” will flash for
five seconds and HDC will become deactivated until
the brakes have cooled.
Disabling HDC
Press the “Hill Descent” button or shift the transfer case
out of 4WD LOW range. The “Hill Descent Control
Indicator” light in the instrument cluster will turn off.
486 STARTING AND OPERATING

WARNING!(Continued)
•Weight Distributing Systems may not be compat-
ible with Surge Brake Couplers. Consult with your
hitch and trailer manufacturer or a reputable Rec-
reational Vehicle dealer for additional information.
Trailer Hitch Classification
The following chart provides the industry standard for
the maximum trailer weight a given trailer hitch class can
tow and should be used to assist you in selecting the
correct trailer hitch for your intended towing condition.
Trailer Hitch Classification Definitions
ClassMax. Trailer Hitch In-
dustry Standards
Class I - Light Duty 2,000 lbs (907 kg)
Class II - Medium Duty 3,500 lbs (1 587 kg)
Class III - Heavy Duty 5,000 lbs (2 268 kg)
Class IV - Extra Heavy
Duty
10,000 lbs (4 540 kg)
Refer to the “Trailer Towing Weights (Maximum
Trailer Weight Ratings)” chart for the Maximum
Gross Trailer Weight (GTW) towable for your given
drivetrain.
All trailer hitches should be professionally installed
on your vehicle.
5
STARTING AND OPERATING 537

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
between 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). Re-
member 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
(Continued)
CAUTION!(Continued)
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.
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 Schedule” for the proper
maintenance intervals.
622 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 automatic trans-
mission, and fill 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
At Every Oil Change Interval As Indicated By Oil
Change Indicator System:
•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
•Inspect all door latches for presence of grease,
reapply if necessary.
8
MAINTENANCE
SCHEDULES
MAINTENANCE SCHEDULES 653

About Your Brakes........................468
ABS (Anti-Lock Brake System)................309
Adding Engine Coolant (Antifreeze)............614
Adding Fuel.............................530
Additives, Fuel...........................528
Air bag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
Air Bag
Advance Front Air Bag....................64
Air bag Operation.......................67
Air Bag Warning Light....................72
Enhanced Accident Response................72
Event Data Recorder (EDR).................75
Front Air Bag . . . . . . . . . . . . . . . . . . . . . . . . . . .63
If A Deployment Occurs...................70
Knee Impact Bolsters.....................68
Maintaining Your Air Bag System............74
Air bag Deployment........................63
Air bag Light.............................72
Air bag Maintenance........................74
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . .591
Air Conditioner Maintenance.................598
Air Conditioning..........................400
Air Conditioning Controls...................400
Air Conditioning Filter.....................413
Air Conditioning, Operating Tips..............412
Air Conditioning Refrigerant.................598
Air Conditioning System....................400
Air Pressure, Tires.........................500
Alarm Light.............................312
Alarm (Security Alarm)......................20
Alterations/Modifications, Vehicle...............9
Antenna, Satellite Radio.....................359
Antifreeze (Engine Coolant)..................613
Disposal..............................616
Anti-Lock Warning Light....................309
Appearance Care.........................625
Arming System (Security Alarm)...............20
Assistance Towing.........................129
672 INDEX

Auto Down Power Windows..................45
Automatic Dimming Mirror..................112
Automatic Door Locks......................41
Automatic Headlights......................168
Automatic Oil Change Indicator...............331
Automatic Temperature Control (ATC)..........404
Automatic Transmission....................431
Adding Fluid..........................622
Fluid and Filter Changes..................622
Fluid Change..........................622
Fluid Level Check.......................620
Fluid Type............................619
Special Additives.......................620
Autostick...............................439
Auxiliary Electrical Outlet (Power Outlet)........183
Auxiliary Power Outlet.....................183
Axle Fluid..............................649
Axle Lock...............................446
Battery.................................596
Keyless Transmitter Replacement (RKE)........27
Belts, Seat...............................101
Body Mechanism Lubrication.................601
B-Pillar Location..........................493
Brake Assist System.......................471
Brake Control System, Electronic..............469
Brake Fluid.............................649
Brakes.................................468
Brake System............................468
Anti-Lock (ABS)........................469
Master Cylinder........................618
Parking..............................466
Warning Light.........................307
Brake/Transmission Interlock.................431
Bulb Replacement.........................641
Bulbs, Light.............................103
Calibration, Compass......................32510
INDEX 673

Dimmer Switch, Headlight...................170
Dipsticks
Oil (Engine)...........................588
Power Steering.........................465
Disabled Vehicle Towing....................577
Disarming, Security System...................21
Disposal
Antifreeze (Engine Coolant)................616
Door Locks..............................38
Child-Protection Door Lock — Rear Doors......42
Door Locks............................38
Key Fob . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Remote...............................38
Remote Keyless Entry (RKE)................38
Door Locks, Automatic......................41
Doors..................................32
Driver’s Seat Back Tilt......................154
Driving................................449
Dual Top...............................192
Electrical Outlet, Auxiliary (Power Outlet)........183
Electrical Power Outlets.....................183
Electric Remote Mirrors.....................113
Electronic Brake Control System...............469
Brake Assist System.....................471
Electronic Roll Mitigation.................476
Traction Control System...................471
Electronic Roll Mitigation (ERM)..............476
Electronic Speed Control (Cruise Control)........179
Electronic Stability Control (ESC)..............477
Electronic Throttle Control Warning Light........321
Electronic Vehicle Information Center (EVIC)......321
Emergency Brake.........................466
Emergency, In Case of
Jacking...............................563
Jump Starting..........................570
Tow Hooks............................575
676 INDEX

Flashers
Hazard Warning........................560
Turn Signal...........................103
Flash-To-Pass............................170
Flooded Engine Starting....................422
Fluid, Brake.............................649
Fluid Capacities..........................646
Fluid Leaks.............................103
Fluid Level Checks........................625
Engine Oil............................588
Manual Transmission....................623
Power Steering.........................465
Fluids, Lubricants and Genuine Parts...........647
Fog Lights..............................170
Fog Light Service.........................644
Fold and Tumble Rear Seat..................161
Folding Rear Seat.........................163
Folding Windshield........................291
Four-Way Hazard Flasher...................560
Four Wheel Drive.........................441
Four Wheel Drive Operation.................441
Freeing A Stuck Vehicle.....................574
Front Axle (Differential).....................625
Fuel...................................525
Adding..............................530
Additives.............................528
Clean Air.............................526
Ethanol..............................526
Filler Cap (Gas Cap).....................530
Gasoline..............................525
Gauge...............................306
Materials Added........................528
Methanol.............................526
Octane Rating..........................525
Requirements..........................525
Specifications..........................647
Tank Capacity..........................646
Fueling................................530
678 INDEX