check engine light JEEP GRAND CHEROKEE 2015 WK2 / 4.G User Guide

apparent, and/or the system is not functioning as antici-
pated. Coordinate inspection efforts through an autho-
rized dealer.
CAUTION!
Do not use chemical flushes in your power steering
system as the chemicals can damage your power
steering components. Such damage is not covered by
the New Vehicle Limited Warranty.
WARNING!
Fluid level should be checked on a level surface and
with the engine off to prevent injury from moving
parts and to ensure accurate fluid level reading. Do
not overfill. Use only manufacturer’s recommended
power steering fluid.
If necessary, add fluid to restore to the proper indicated
level. With a clean cloth, wipe any spilled fluid from all
surfaces. Refer to “Fluids, Lubricants, and Genuine
Parts” in “Maintaining Your Vehicle” for further informa-
tion.
FUEL SAVER TECHNOLOGY 5.7L ENGINE ONLY
— IF EQUIPPED
This feature offers improved fuel economy by shutting
off four of the engine’s eight cylinders during light load
and cruise conditions. The system is automatic with no
driver inputs or additional driving skills required.
NOTE:This system may take some time to return to full
functionality after a battery disconnect.
PARKING BRAKE
Before leaving the vehicle, make sure that the parking
brake is fully applied and place the shift lever in the
PARK position.
5
STARTING AND OPERATING 469

6. Using a ballpoint pen or similar object, press and hold
the recessed transfer case NEUTRAL (N) button (lo-
cated by the selector switch) for one second.
7. When the NEUTRAL (N) indicator light turns off,
release the NEUTRAL (N) button. After the NEU-
TRAL (N) button has been released, the transfer case
will shift to the position indicated by the selector
switch.
8. Shift the transmission into PARK. Turn the engine
OFF.
9. Release the brake pedal.
10. Disconnect vehicle from the tow vehicle.
11. Start the engine.
12. Press and hold the brake pedal.
13. Release the parking brake.
14. Shift the transmission into DRIVE, release the brake
pedal, and check that the vehicle operates normally.
NEUTRAL (N) Switch
564 STARTING AND OPERATING

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 “Malfunction
7
MAINTAINING YOUR VEHICLE 603

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 isnot readyand you should
notproceed 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
isreadyand you can proceed to the I/M station.
If your OBD II system isnot ready,you should see your
authorized dealer or repair facility. If your vehicle was
recently serviced or had a battery failure or replacement,
604 MAINTAINING YOUR VEHICLE

5. Gently lower the tip of the wiper arm onto the glass.
Installing The Rear Wiper
1. Lift the rear wiper arm pivot cap away from the glass
to allow the rear wiper blade to be raised off of the
glass.
NOTE:The rear wiper arm cannot be fully raised off the
glass unless the wiper arm pivot cap is unsnapped first.
Attempting to fully raise the rear wiper arm without
unsnapping the wiper arm pivot cap may damage the
vehicle.
2. Lift the rear wiper arm fully off the glass.
3. Insert the wiper blade pivot pin into the opening on
the end of the wiper arm. Grab the bottom end of the
wiper arm with one hand, and press the wiper blade
flush with the wiper arm until it snaps into place.
4. Lower the wiper blade onto the glass and snap the
wiper arm pivot cap back into place.
Adding Washer Fluid
This vehicle is equipped with a Driver Information
Display (DID), the DID will indicate when the washer
fluid level is low. When the sensor detects a low fluid
level, the windshield will light on the vehicle graphic
outline and the “WASHER FLUID LOW” message will be
displayed.
The fluid reservoir for the windshield washers and the
rear window washer is shared. The fluid reservoir is
located in the engine compartment, be sure to check the
fluid level at regular intervals. Fill the reservoir with
windshield washer solvent only (not radiator antifreeze).
When refilling the washer fluid reservoir, take some
washer fluid and apply it to a cloth or towel and wipe
clean the wiper blades, this will help blade performance.
To prevent freeze-up of your windshield washer system
7
MAINTAINING YOUR VEHICLE 629

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.
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
•Check the fluid levels of the coolant reservoir, brake
master cylinder and power steering, and fill as needed.
•Check function of all interior and exterior lights
8
MAINTENANCE
SCHEDULES
676 MAINTENANCE SCHEDULES

Bulbs, Light.............................112
Camera, Rear............................243
Capacities, Fluid..........................669
Caps, Filler
Oil (Engine)...........................609
Power Steering.........................468
Radiator (Coolant Pressure)................636
Carbon Monoxide Warning..................109
Cargo Area Cover.........................279
Cargo Area Features.......................275
Cargo Compartment.......................275
Light................................277
Cargo Light.............................277
Cargo Tie-Downs.........................280
Car Washes.............................645
Cellular Phone...........................383
Center High Mounted Stop Light..............668
Certification Label.........................539
Chains, Tire.............................517
Chart, Tire Sizing.........................494
Check Engine Light (Malfunction Indicator Light) . .603
Checking Your Vehicle For Safety..............108
Checks, Safety...........................108
Child Restraint............................83
Child Restraints
Booster Seats...........................88
Child Restraints.........................83
Child Seat Installation....................103
How To Stow An Unused ALR Seat Belt........99
Infants And Child Restraints................86
Install A LATCH-compatible Child Restraint.....98
Installing Child Restraints Using The Vehicle Seat
Belt.................................100
LATCH Positions........................92
Lower Anchors And Tethers For Children.......91
Older Children And Child Restraints..........86
Seating Positions........................90
696 INDEX

Fluid Capacities..........................669
Fluid Leaks.............................113
Fluid Level Checks
Automatic Transmission..................643
Brake................................639
Engine Oil............................607
Power Steering.........................468
Fluids, Lubricants and Genuine Parts...........670
Fog Lights..............................293
Fog Light Service.........................664
Folding Rear Seat.........................157
Forward Collision Warning..................219
Four-Way Hazard Flasher...................568
Four Wheel Drive.........................440
Operation.............................440
Systems..............................440
Four Wheel Drive Operation.................440
Freeing A Stuck Vehicle.....................587
Front Axle (Differential).....................640
Fuel...................................527
Adding..............................536
Additives.............................530
Clean Air.............................528
Economy Mode........................429
Ethanol..............................528
Gasoline..............................527
Gauge...............................297
Materials Added........................530
Methanol.............................528
Octane Rating..........................527
Requirements..........................527
Tank Capacity..........................669
Fuel, Flexible............................532
Fueling................................536
Fuses..................................650
Garage DoorOpener(HomeLink®)............248
Gasoline, Clean Air........................528
700 INDEX

Leaks, Fluid.............................113
Life of Tires.............................515
Liftgate.................................45
Liftgate Window Wiper/Washer...............282
Light Bulbs..............................112
Lights.................................112
Airbag................................79
Anti-Lock.............................292
Automatic Headlights....................168
Back-Up..............................665
Brake Assist Warning....................491
Brake Warning.........................295
Bulb Replacement.......................662
Cargo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..277
Center Mounted Stop....................668
Daytime Running.......................170
Dimmer Switch, Headlight.................166
Exterior..............................112
Fog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..293
Hazard Warning Flasher..................568
Headlights............................662
Headlights On With Wipers................168
High Beam Indicator.....................292
Illuminated Entry........................21
Malfunction Indicator (Check Engine).........293
Map Reading..........................174
Passing..............................177
Reading..............................174
Rear Servicing.........................665
Rear Tail Lamps........................665
Seat Belt Reminder......................292
Security Alarm.........................299
Service...............................662
Service Engine Soon (Malfunction Indicator) . . . .293
Side Marker...........................665
SmartBeams...........................168
Tire Pressure Monitoring (TPMS)............297
Traction Control........................49110
INDEX 703

Turn Signal............................112
Vanity Mirror..........................134
Loading Vehicle..........................539
Ti re s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..500
Locks..................................31
Automatic Door.........................33
Child Protection.........................34
Door.................................31
Power Door............................32
Lubrication, Body.........................621
Lug Nuts...............................569
Maintenance Free Battery....................615
Maintenance Procedures....................606
Maintenance Schedule......................676
Malfunction Indicator Light (Check Engine).......293
Manual, Service..........................690
Memory Feature (Memory Seat)...............160
Memory Seat............................160
Memory Seats and Radio....................160
Methanol...............................528
Mirrors................................123
Electric Powered........................132
Electric Remote.........................132
Exterior Folding........................131
Heated...............................133
Outside..............................130
Rearview.............................123
Vanity...............................134
Modifications/Alterations, Vehicle...............9
Monitor, Tire Pressure System................520
MOPAR® Parts...........................605
MTBE/ETBE............................528
Multi-Function Control Lever.................166
New Vehicle Break-In Period.................107
Occupant Restraints........................50
704 INDEX