check engine light JEEP CHEROKEE 2016 KL / 5.G User Guide

BRAKE SYSTEM
Your vehicle is equipped with dual hydraulic
brake systems. If either of the two hydraulic
systems loses normal capability, the remaining
system will still function. However, there will
be some loss of overall braking effectiveness. This will be
evident by increased pedal travel during application and
greater pedal force required to slow or stop the vehicle. In
addition, if the malfunction is caused by a leak in the
hydraulic system, the “Brake Warning Light” will turn on
as the brake fluid level drops in the master cylinder.
In the event power assist is lost for any reason (i.e.,
repeated brake applications with the engine OFF) the
brakes will still function. However, the effort required to
brake the vehicle will be much greater than that required
with the power system operating.
WARNING!
• Riding the brakes can lead to brake failure and
possibly a collision. Driving with your foot resting
or riding on the brake pedal can result in abnor-
mally high brake temperatures, excessive lining
wear, and possible brake damage. You would not
have your full braking capacity in an emergency.
• Driving a vehicle with the “Brake Warning Light”
on is dangerous. A significant decrease in braking
performance or vehicle stability during braking
may occur. It will take you longer to stop the
vehicle or will make your vehicle harder to control.
You could have a collision. Have the vehicle
checked immediately.
5
STARTING AND OPERATING 519

NOTE:When shifting the power transfer unit out of
NEUTRAL (N), the engine should remain OFF to avoid
gear clash.
9. Shift the transmission into PARK.
10. Release the brake pedal.
11. Disconnect vehicle from the tow vehicle.
12. Start the engine.
13. Press and hold the brake pedal.
14. Release the parking brake.
15. Shift the transmission into DRIVE, release the brake pedal, and check that the vehicle operates normally.
16. Re-enable the Auto Park Brake feature, if desired. NOTE:
•
Steps 1 through 5 are requirements that must be met
before pushing the NEUTRAL (N) button, and must
continue to be met until the shift has been completed.
If any of these requirements are not met before push-
ing the NEUTRAL (N) button or are no longer met
during the shift, the NEUTRAL (N) indicator light will
flash continuously until all requirements are met or
until the NEUTRAL (N) button is released.
• The ignition switch must be in the ON/RUN position
for a shift to take place and for the position indicator
lights to be operable. If the ignition switch is not in the
ON/RUN position, the shift will not take place and no
position indicator lights will be on or flashing.
• A flashing NEUTRAL (N) position indicator light
indicates that shift requirements have not been met.
5
STARTING AND OPERATING 613

ONBOARD DIAGNOSTIC SYSTEM — OBD II
Your vehicle is equipped with a sophisticated Onboard
Diagnostic system called OBD II. This system monitors
the performance of the emissions, engine, and automatic
transmission control systems. When these systems are
operating properly, your vehicle will provide excellent
performance and fuel economy, as well as engine emis-
sions well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the Malfunction Indicator Light (MIL). It will
also store diagnostic codes and other information to
assist your service technician in making repairs. Al-
though your vehicle will usually be drivable and not
need towing, see your authorized dealer for service as
soon as possible.
CAUTION!
•Prolonged driving with the MIL on could cause
further damage to the emission control system. It
could also affect fuel economy and driveability.
The vehicle must be serviced before any emissions
tests can be performed.
• If the MIL is flashing while the engine is running,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
Loose Fuel Filler Cap Message
If the vehicle diagnostic system determines that the fuel
filler cap is loose, improperly installed, or damaged, a
“CHECK GASCAP” message will be displayed in the
Electronic Vehicle Information Center (EVIC) or Driver
Information Display (DID). Refer to “Electronic Vehicle
Information (EVIC) or Driver Information Display
(DID)” in “Understanding Your Instrument Panel” for
7
MAINTAINING YOUR VEHICLE 661

further information. Tighten the fuel filler cap until a
“clicking” sound is heard. This is an indication that the
fuel filler cap is properly tightened. Refer to “Onboard
Diagnostic System” in “Maintaining Your Vehicle” for
further information.
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal requirement to pass
an inspection of your vehicle’s emissions control system.
Failure to pass could prevent vehicle registration.For states that require an Inspection and Mainte-
nance (I/M), this check verifies the “Malfunction
Indicator Light (MIL)” is functioning and is not
on when the engine is running, and that the OBD II
system is ready for testing.
Normally, the OBD II system will be ready. The OBD II
system may notbe ready if your vehicle was recently serviced, recently had a dead battery or a battery replace-
ment. If the OBD II system should be determined not
ready for the I/M test, your vehicle may fail the test.
Your vehicle has a simple ignition actuated test, which
you can use prior to going to the test station. To check if
your vehicle’s OBD II system is ready, you must do the
following:
1. Cycle the ignition switch to the ON position, but do
not crank or start the engine.
NOTE: If you crank or start the engine, you will have to
start this test over.
2. As soon as you cycle the ignition switch to the ON position, you will see the Malfunction Indicator Light
(MIL) symbol come on as part of a normal bulb check.
662 MAINTAINING YOUR VEHICLE

•If frequent engine coolant (antifreeze) additions are
required, the cooling system should be pressure tested
for leaks.
• Maintain engine coolant (antifreeze) concentration at a
minimum of 50% OAT coolant (conforming to
MS.90032) and distilled water for proper corrosion
protection of your engine which contains aluminum
components.
• Make sure that the coolant expansion bottle overflow
hoses are not kinked or obstructed.
• Keep the front of the radiator clean. If your vehicle is
equipped with air conditioning, keep the front of the
condenser clean.
•
Do not change the thermostat for Summer or Winter
operation. If replacement is ever necessary, install ONLY
the correct type thermostat. Other designs may result in
unsatisfactory engine coolant (antifreeze) performance,
poor gas mileage, and increased emissions.
Brake System
In order to assure brake system performance, all brake
system components should be inspected periodically.
Refer to the “Maintenance Schedule” for the proper
maintenance intervals.
WARNING!
Riding the brakes can lead to brake failure and
possibly a collision. Driving with your foot resting or
riding on the brake pedal can result in abnormally
high brake temperatures, excessive lining wear, and
possible brake damage. You would not have your full
braking capacity in an emergency.
Brake Master Cylinder
The fluid in the master cylinder should be checked when
performing under hood services or immediately if the
“Brake Warning Light” is illuminated.
696 MAINTAINING YOUR VEHICLE

Once A Month Or Before A Long Trip:
•Check engine oil level.
• Check windshield washer fluid level.
• 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.
• Check the fluid levels of the coolant reservoir and
brake master cylinder, 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
• 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 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 8
MAINTENANCE SCHEDULES 731

Alterations/Modifications, Vehicle...............8
Antifreeze (Engine Coolant) ...............691, 725
Disposal ............................. .694
Anti-Lock Brake System (ABS) ................520
Anti-Lock Warning Light ....................345
Appearance Care ........................ .700
Arming System (Security Alarm) ...............19
Assist, Hill Start ......................... .523
Auto Down Power Windows ..................46
Automatic Door Locks ....................36, 37
Automatic Headlights ..................... .166
Automatic High Beams .....................168
Automatic Temperature Control (ATC) . . . .421, 432, 441
Automatic Transaxle ...................... .483
Automatic Transmission .................485, 699
Adding Fluid ...................... .699, 728
Fluid And Filter Changes ..................699
Fluid Change ......................... .699
Fluid Level Check ...................698, 699 Fluid Type
........................ .698, 728
Special Additives ...................... .698
Torque Converter ...................... .494
Auto Unlock, Doors ........................37
Auto Up Power Windows ....................46
Auxiliary Electrical Outlet (Power Outlet) ........296
Auxiliary Power Outlet .....................296
Axle Fluid ............................. .728
Axle Lubrication ......................... .728
Battery ............................ .334, 674
Charging System Light ...................334
Keyless Transmitter Replacement (RKE) ........26
Belts, Seat ...............................116
Blind Spot Monitoring ..................... .137
Body Mechanism Lubrication .................679
B-Pillar Location ......................... .547
Brake Assist System ...................... .522
Brake Control System, Electronic ..............520
10
INDEX 747

Brake Fluid............................ .728
Brakes ................................ .519
Brake System ........................ .519, 696
Fluid Check ....................... .696, 728
Master Cylinder ....................... .696
Warning Light ........................ .329
Brake/Transmission Interlock .................485
Brightness, Interior Lights ...................172
Bulb Replacement ..................... .718, 720
Bulbs, Light ..........................118,718
Camera, Rear ........................... .280
Capacities, Fluid ......................... .725
Caps, Filler Fuel ................................ .584
Oil (Engine) ....................659, 660, 667
Radiator (Coolant Pressure) ................694
Carbon Monoxide Warning ...............115,581
Cargo Area Features ...................... .309Cargo Compartment
...................... .309
Cargo Load Floor ........................ .309
Cargo Tie-Downs ........................ .310
Car Washes ............................ .700
Certification Label ........................ .588
Changing A Flat Tire ...................... .631
Chart, Tire Sizing ........................ .542
Check Engine Light (Malfunction Indicator Light) . .662
Checking Your Vehicle For Safety ..............114
Checks, Safety ............................114
Child Restraint ............................91
Child Restraints Booster Seats ...........................96
Child Restraints .........................91
Child Seat Installation ....................110
How To Stow An Unused ALR Seat Belt .......107
Infants And Child Restraints ................94
Install A LATCH-Compatible Child Restraint . . . .105
748 INDEX

Traction Control System...................526
Electronic Range Select (ERS) .................493
Electronic Speed Control (Cruise Control) .....183, 187
Electronic Stability Control (ESC) ..............527
Electronic Throttle Control Warning Light ........335
Electronic Vehicle Information Center (EVIC) ......280
Change Engine Oil ..................... .363
Electronic Vehicle Information Center (EVIC) . . . .361
Selectable Menu Items ....................364
Emergency, In Case Of Hazard Warning Flasher ..................617
Jacking .............................. .631
Jump Starting ......................... .644
Overheating .......................... .617
Emission Control System Maintenance ..........662
Engine ............................. .659, 660
Air Cleaner .......................... .669
Block Heater ......................... .482
Break-In Recommendations ................113 Checking Oil Level
..................... .665
Coolant (Antifreeze) .....................726
Cooling ............................. .690
Exhaust Gas Caution .................115,581
Fails To Start ......................... .476
Flooded, Starting ...................... .476
Fuel Requirements ..................... .577
Jump Starting ......................... .644
Oil .......................... .665, 725, 726
Oil Filler Cap ...................659, 660, 667
Oil Filter ............................ .668
Oil Selection ...................... .666, 725
Oil Synthetic ......................... .668
Overheating .......................... .617
Starting .......................... .474, 475
Engine Oil Viscosity ...................... .667
Engine Oil Viscosity Chart ...................667
Enhanced

Accident Response Feature ............86
Entry System, Illuminated ....................2210
INDEX 751

Ethanol............................ .578, 581
Event Data Recorder ........................90
Exhaust Gas Caution ....................115,581
Exhaust System .......................115,688
Exterior Lighting ......................... .165
Exterior Lights ...........................118
Filters Air Cleaner .......................... .669
Air Conditioning ....................444, 677
Engine Oil ........................ .668, 726
Engine Oil Disposal .....................668
Flashers Hazard Warning ....................... .617
Turn Signal ..................118, 170, 355, 721
Flash-To-Pass ........................... .171
Flexible Fuel Vehicles Cruising Range ........................ .584
Engine Oil ........................... .583Fuel Requirements
...................581, 582
Maintenance .......................... .584
Replacement Parts ...................... .584
Starting ............................. .583
Flooded Engine Starting ....................476
Floor Console ........................... .307
Fluid, Brake ............................ .728
Fluid Capacities ......................... .725
Fluid Leaks .............................118
Fluid Level Checks Brake ............................... .696
Engine Oil ........................... .665
Fluids, Lubricants And Genuine Parts ...........726
Fog Lights ....................... .169, 337, 722
Fog Light Service ........................ .722
Folding Rear Seat ........................ .157
Forward Collision Warning ..................214
Four Wheel Drive ........................ .504
Freeing A Stuck Vehicle .....................648
752 INDEX