service indicator JEEP GRAND CHEROKEE 2016 WK2 / 4.G Diesel Supplement Manual

WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call an authorized dealer
for service if your vehicle overheats. If you decide to
look under the hood yourself, see “Maintaining Your
Vehicle”. Follow the warnings under the Cooling
System Pressure Cap paragraph.
5. Fuel Gauge •The pointer shows the level of fuel in the fuel tank
when the ignition switch is in the ON/RUN position
• The fuel pump symbol points
to the side of the
vehicle where the fuel door is located. WARNING AND INDICATOR LIGHTS
IMPORTANT:
The warning light switches on in the
instrument panel together with a dedicated message
and/or acoustic signal when applicable. These indica-
tions are indicative and precautionary and as such must
not be considered as exhaustive and/or alternative to the
information contained in the Owner Manual, which you
are advised to read carefully in all cases. Always refer to
the information in this chapter in the event of a failure
indication.
14 UNDERSTANDING YOUR INSTRUMENT PANEL

•Engine Will Not Restart in XXXX mi DEF Low Refill
Soon
• Engine Will Not Restart in XXXX mi Refill DEF
• Engine Will Not Start Refill DEF
• Service DEF System See Dealer
• Incorrect DEF Detected See Dealer
• Engine Will Not Restart in XXX mi Service DEF See
Dealer
• Engine Will Not Restart Service DEF System See
Dealer
• Engine Will Not Start Service DEF System See DealerEngine Oil Life Reset
Oil Change Required
Your vehicle is equipped with an engine oil change
indicator system. The “Oil Change Required” message
will display in the DID for five seconds after a single
chime has sounded, to indicate the next scheduled oil
change interval. The engine oil change indicator system
is duty cycle based, which means the engine oil change
interval may fluctuate, dependent upon your personal
driving style.
Unless reset, this message will continue to display each
time you cycle the ignition to the ON/RUN position. To
turn off the message temporarily, push and release the
OK button. To reset the oil change indicator system (after
performing the scheduled maintenance), refer to the
following procedure.
3
UNDERSTANDING YOUR INSTRUMENT PANEL 21

Oil Change Reset Procedure
1. Without pushing the brake pedal, push and release theENGINE START/STOP button and place the ignition
to the ON/RUN position (do not start the engine).
2. Fully push the accelerator pedal, slowly, three times within 10 seconds.
3. Without pushing the brake pedal, push and release the ENGINE START/STOP button once to return the
ignition to the OFF/LOCK position.
NOTE: If the indicator message illuminates when you
start the vehicle, the oil change indicator system did not
reset. If necessary, repeat this procedure. Secondary Method For Oil Change Reset
1. Without depressing the brake pedal, push and release
the ENGINE START/STOP button and place the igni-
tion to the ON/RUN position (do not start the engine).
2.
Navigate to Oil Lifesubmenu in Vehicle Info on DID.
3. Push and Hold the OKbutton until the gauge resets to
100%
Fuel Filter Life Reset
The cluster will display the “Fuel System Service Re-
quired – See Dealer” or “Service Fuel Filter” message
when the fuel filter maintenance life is less than 5%. To
verify if this is a fuel filter change event, go to the “Fuel
Filter Life” screen in the “Vehicle Info” menu. When this
message appears, dealers should replace the fuel filters.
NOTE: Use the steering wheel DID controls for the
following procedure(s)
22 UNDERSTANDING YOUR INSTRUMENT PANEL

•Exhaust System Service Required - See Dealer —
This messages indicates regeneration has been disabled
due to a system malfunction. At this point the engine
Powertrain Control Module (PCM) will register a fault
code, the instrument panel will display a MIL light.
CAUTION!
See your authorized dealer, as damage to the exhaust
system could occur soon with continued operation.
• Exhaust Filter Full — Power Reduced See Dealer —
This message indicates the PCM has derated the
engine to limit the likelihood of permanent damage to
the after-treatment system. If this condition is not
corrected and a dealer service is not performed, exten-
sive exhaust after-treatment damage can occur. To
correct this condition it will be necessary to have your
vehicle serviced by your local authorized dealer. NOTE:
Failing to follow the oil change indicator, chang-
ing your oil and resetting the oil change indicator by
0 miles remaining will prevent the diesel exhaust filter
from performing it’s cleaning routine. This will shortly
result in a Malfunction Indicator Light (MIL) and re-
duced engine power. Only an authorized dealer will be
able to correct this condition.CAUTION!
See your authorized dealer, as damage to the exhaust
system could occur soon with continued operation.
3
UNDERSTANDING YOUR INSTRUMENT PANEL 25

124 miles, remaining range will be continuously dis-
played while operating the vehicle. Chimes will also
accompany the 75, 50 and 25 mile remaining distances.
We recommend you drive to your nearest authorized
dealer and have your vehicle serviced immediately.
• Engine Will Not Restart Service DEF System See
Dealer — This message will display if DEF system
issue detected is not serviced during the allowed
period. Your engine will not restart unless your vehicle
is serviced by your authorized dealer. This message
will be displayed when under 1 mile until engine will
not start and each time the vehicle is started, and will
be continuously displayed. The message will be ac-
companied by a single chime. Your Malfunction Indi-
cator Light will be continuously illumined. We highly
recommend you drive to your nearest authorized
dealer if the message appears while engine is running. •
Engine Will Not Start Service DEF System See
Dealer — This message will display when the fault
detected is not serviced after the Engine will not restart
Service DEF System See Dealer message is displayed
on the next subsequent restart. Your engine will not
start unless you vehicle is serviced by your authorized
dealer. The message will be accompanied by a single
chime. Your Malfunction Indicator Light will be con-
tinuously illuminated. If the message appears and you
can not start the engine, we recommend you have your
vehicle towed to your nearest authorized dealer im-
mediately.
28 UNDERSTANDING YOUR INSTRUMENT PANEL

fuel conditioners should not be required in your vehicle.
If available in your area, a high cetane “premium” diesel
fuel may offer improved cold-starting and warm-up
performance.
CAUTION!
If the “Water in Fuel Indicator Light” remains on, DO
NOT START engine before you drain the water from
the fuel filter(s) to avoid engine damage. Refer to
“Maintenance Procedures/Draining Fuel/Water Sepa-
rator Filter” in “Maintaining Your Vehicle” for fur-
ther information.
Fuel Specifications
This diesel engine has been developed to take advantage
of the high energy content and generally lower cost
No. 2 Ultra Low Sulfur diesel fuel or No. 2 Ultra Low
Sulfur climatized diesel fuels.NOTE:
•
If you accidentally fill the fuel tank with gasoline on
your diesel vehicle, do not start the engine. Damage to
the engine and fuel system could occur. Please call
your authorized dealer for service.
• A maximum blend of 5% biodiesel meeting ASTM
specification D-975 may be used with your diesel
engine without any adjustments to regular service
schedules.
• Commercially available fuel additives are not neces-
sary for the proper operation of your diesel engine.
• No. 1 Ultra Low Sulfur diesel fuel should only be used
where extended arctic conditions (-10°F or -23°C) exist.
4
STARTING AND OPERATING 43

CAUTION!
If the “Water In Fuel Indicator Light” remains on, DO
NOT START the engine before you drain water from
the fuel filters to avoid engine damage.
If the “Water In Fuel Indicator Light” comes on and a
single chime are heard while you are driving, or with the
ignition in the ON position, there may be a problem with
your water separator wiring or sensor. See your autho-
rized dealer for service.
Upon proper draining of the water from fuel filter
assembly, the “Water In Fuel Indicator Light” will remain
illuminated for approximately 10 seconds. If the water
was drained while the engine was running, the “Water In
Fuel Indicator Light” may remain on for approximately
three minutes. NOTE:
Care should be taken in disposing of used fluids
from your vehicle. Used fluids, indiscriminately dis-
carded, can present a problem to the environment. Con-
tact an authorized dealer, service station, or government
agency for advice on recycling programs and for where
used fluids and filters can be properly disposed of in
your area.
Drain the fuel/water separator filters when the “Water In
Fuel Indicator Light” is ON. Within 10 minutes of vehicle
shutdown, turn the filter drain valve (located on the
bottom of the filter housing) counterclockwise to drain
fuel/water, then turn the ignition switch to the ON
position, and allow any accumulated water to drain.
Leave the drain valve open until all water and contami-
nants have been removed. When clean fuel is visible,
close the drain valve by turning it clockwise, and turn the
ignition switch to OFF.
5
MAINTAINING YOUR VEHICLE 79

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 will influence when the “Oil
Change Required” message is displayed. Severe Operat-
ing 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 other
than your authorized dealer, the message can be reset by
referring to the steps described under “Driver Informa-
tion Display (DID)” 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.
98 MAINTENANCE SCHEDULE

WARNING!
•You can be badly injured working on or around a
motor vehicle. Do only service work for which you
have the knowledge and the right equipment. If
you have any doubt about your ability to perform a
service job, take your vehicle to a competent me-
chanic.
• Failure to properly inspect and maintain your ve-
hicle could result in a component malfunction and
effect vehicle handling and performance. This
could cause an accident.
Additional Maintenance — B6 To B20 Biodiesel
NOTE:
• Under no circumstances should oil change intervals
exceed 8,000 miles (12 875 km) or six months, which-
ever comes first when using Biodiesel blends greater
than 5% (B5).
• The owner is required to monitor mileage for B6-B20
biodiesel, the automatic oil change indicator system
does not reflect the use of biofuels.
6
MAINTENANCE SCHEDULE 103