2014 JEEP GRAND CHEROKEE service indicator

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.
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 “Malfunction7
MAINTAINING YOUR VEHICLE 571

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 maynotbe 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 MIL symbol come on as part
of a normal bulb check.
3. Approximately 15 seconds later, one of two things will happen:
• The MIL will flash for about 10 seconds and then
return to being fully illuminated until you turn OFF
the ignition or start the engine. This means that your
vehicle’s OBD II system is not readyand you should
not proceed to the I/M station.
• The MIL will not flash at all and will remain fully
illuminated until you turn OFF the ignition or start the
engine. This means that your vehicle’s OBD II system
is ready and you can proceed to the I/M station.
If your OBD II system is not ready,you should see your
authorized dealer or repair facility. If your vehicle was
recently serviced or had a battery failure or replacement,
572 MAINTAINING YOUR VEHICLE

MAINTENANCE SCHEDULE
Your vehicle is equipped with an automatic oil change
indicator system. The oil change indicator system will
remind you that it is time to take your vehicle in for
scheduled maintenance.
Based on engine operation conditions, the oil change
indicator message will illuminate. This means that ser-
vice is required for your vehicle. Operating conditions
such as frequent short-trips, trailer tow, extremely hot or
cold ambient temperatures, and E85 fuel usage will
influence when the “Oil Change Required” message is
displayed. Severe Operating Conditions can cause the
change oil message to illuminate as early as 3,500 miles
(5,600 km) since last reset. Have your vehicle serviced as
soon as possible, within the next 500 miles (805 km).
Your authorized dealer will reset the oil change indicator
message after completing the scheduled oil change. If a
scheduled oil change is performed by someone otherthan your authorized dealer, the message can be reset by
referring to the steps described under “Electronic Vehicle
Information Center (EVIC)” in “Understanding Your
Instrument Panel” for further information.
NOTE:
Under no circumstances should oil change inter-
vals exceed 10,000 miles (16,000 km) or twelve months,
whichever comes first.
Severe Duty All Models
Change Engine Oil at 4000 miles (6,500 km) if the vehicle
is operated in a dusty and off road environment. This
type of vehicle use is considered Severe Duty.
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
8
M A I
N T
E
N
A
N
C E
S
C
H E
D
U L
E
S632 MAINTENANCE SCHEDULES

Cargo Light............................ .267
Cargo Tie-Downs ........................ .270
Car Washes ............................ .603
Cellular Phone .......................... .375
Center High Mounted Stop Light ..............624
Certification Label ........................ .510
Chains, Tire ............................ .487
Chart, Tire Sizing ........................ .467
Check Engine Light (Malfunction Indicator Light) . .571
Checking Your Vehicle For Safety ..............107
Checks, Safety .......................... .107
Child Restraint ............................82
Child Restraints Child Seat Installation ....................101
Install A LATCH-compatible Child Restraint .....96
Installing Child Restraints Using The Vehicle Seat
Belt ..................................98
Lower Anchors And Tethers For Children .......89
Child Safety Locks .........................33 Clean Air Gasoline
....................... .499
Cleaning Wheels .............................. .604
Climate Control ......................... .375
Cold Weather Operation ....................398
Compact Disc (CD) Maintenance ..............374
Compact Spare Tire ....................... .482
Console, Overhead ....................... .235
Contract, Service ......................... .644
Coolant Pressure Cap (Radiator Cap) ...........594
Cooling System .......................... .590
Adding Coolant (Antifreeze) ...............592
Coolant Capacity ...................... .625
Coolant Level ......................... .595
Disposal of Used Coolant .................594
Drain, Flush, and Refill ...................591
Inspection ........................... .590
Points to Remember .....................595
Pressure Cap ......................... .594
654 INDEX

Radiator Cap......................... .594
Selection of Coolant (Antifreeze) .............591
Corrosion Protection ...................... .602
Cruise Control (Speed Control) ................187
Cupholders ............................ .261
Customer Assistance ...................... .641
Data Recorder, Event .......................81
Daytime Running Lights ....................166
Dealer Service ........................... .573
Defroster, Rear Window .....................273
Defroster, Windshield ..................... .109
Dipsticks Oil (Engine) .......................... .574
Power Steering ........................ .442
Disposal Antifreeze (Engine Coolant) ................594
Door Locks ..............................31
Child-Protection Door Lock — Rear Doors ......33Door Opener, Garage
...................... .237
Driving ............................... .430
Off-Pavement ......................... .431
Off-Road ............................ .431
E-85 Fuel .............................. .503
Economy (Fuel) Mode ..................... .403
Electrical Outlet, Auxiliary (Power Outlet) ........255
Electric Rear Window Defrost .................273
Electric Remote Mirrors .....................128
Electronic Brake Control System ...............446
Brake Assist System .....................448
Electronic Roll Mitigation (ERM) ..............449
Electronic Speed Control (Cruise Control) ........183
Electronic Stability Control (ESC) ..............450
Electronic Vehicle Information Center (EVIC) ......289
Change Engine Oil ..................... .295
Change Engine Oil Indicator System ..........295
Electronic Vehicle Information Center (EVIC) . . . .291
10
INDEX 655

Exterior..............................111
Fog ................................ .283
Hazard Warning Flasher ..................538
Headlights ........................... .619
Headlights On With Wipers ................165
High Beam Indicator .....................282
Illuminated Entry ........................25
Malfunction Indicator (Check Engine) .........283
Map Reading ......................... .170
Passing ............................. .173
Reading ............................. .170
Rear Servicing ........................ .621
Rear Tail ............................ .621
Seat Belt Reminder ..................... .282
Security Alarm ........................ .290
Service .............................. .619
Service Engine Soon (Malfunction Indicator) . . . .283
Side Marker .......................... .621
SmartBeams .......................... .165Tire Pressure Monitoring (TPMS)
............287
Traction Control ....................... .464
Turn Signal ............................111
Vanity Mirror ......................... .130
Loading Vehicle ......................... .510
Tires ............................... .472
Locks ..................................31
Child Protection .........................33
Door .................................31
Power Door ............................32
Lubrication, Body ........................ .584
Lug Nuts .............................. .539
Maintenance Free Battery ....................579
Maintenance Procedures ....................574
Maintenance Schedule ..................... .632
Malfunction Indicator Light (Check Engine) .......283
Manual, Service ......................... .646
Memory Feature (Memory Seat) ...............157
10
INDEX 661

Safety.............................. .465
Sizes ............................... .467
Snow Tires ........................... .481
Spare Tire ............................ .543
Spinning ............................ .484
Trailer Towing ........................ .522
Tread Wear Indicators ....................484
Tire Safety Information .....................465
Tongue Weight/Trailer Weight ................519
Tow Hooks, Emergency .....................558
Towing ............................... .512
Guide .............................. .517
Recreational .......................... .528
Weight .............................. .517
Towing Vehicle Behind a Motorhome ...........528
Traction Control ......................... .448
Trailer Sway Control (TSC) ..................453
Trailer Towing .......................... .512
Cooling System Tips .....................526 Hitches
............................. .516
Minimum Requirements ..................520
Trailer and Tongue Weight .................519
Wiring .............................. .524
Trailer Towing Guide ...................... .517
Trailer Weight ........................... .517
Transfer Case ........................... .599
Maintenance .......................... .599
Transmission ........................... .404
Automatic ........................... .404
Maintenance .......................... .600
Shifting ............................. .400
Transmitter Battery Service (Remote Keyless Entry) . .29
Transmitter, Garage Door Opener (HomeLink®). . . .237
Transmitter Programming (Remote Keyless Entry) . . .26
Transmitter, Remote Keyless Entry (RKE) .........26
Tread Wear Indicators ..................... .484
Turn Signals ............................ .283
668 INDEX