2017 JEEP GRAND CHEROKEE engine

highway speeds for up to 20 minutes, you can remedy
the condition in the particulate filter system and allow
your diesel engine and exhaust after-treatment system to
cleanse the filter to remove the trapped PM and restore
the system to normal operating condition.
• Exhaust System Regeneration in Process Continue
Driving — This message indicates that the Diesel Par-
ticulate Filter (DPF) is self-cleaning. Maintain your cur-
rent driving condition until regeneration is completed.
• Exhaust System — Regeneration Completed — This
message indicates that the Diesel Particulate Filter (DPF)
self-cleaning is completed. If this message is displayed,
you will hear one chime to assist in alerting you of this
condition.
• Exhaust System Service Required - See Dealer — This
messages indicates regeneration has been disabled due
to a system malfunction. At this point the engine Pow-
ertrain 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, extensive exhaust
after-treatment damage can occur. To correct this condi-
tion it will be necessary to have your vehicle serviced by
your local authorized dealer.
NOTE: Failing to follow the oil change indicator, changing
your oil and resetting the oil change indicator by 0 miles
remaining will prevent the diesel exhaust filter from per-
forming it’s cleaning routine. This will shortly result in a
Malfunction Indicator Light (MIL) and reduced 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.
Diesel Exhaust Fluid (DEF) Warning Messages
Your vehicle will begin displaying warning messages when
the DEF level reaches a driving range of approximately 500
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GETTING TO KNOW YOUR INSTRUMENT PANEL 143

miles. If the following warning message sequence is ig-
nored, your vehicle may not restart unless DEF is added
with in the mileage shown in the instrument cluster
display message.
•Engine Will Not Restart in XXXX mi DEF Low Refill
Soon — This message will display when DEF driving
range is less than 500 miles, DEF fluid top off is required
with in the displayed mileage. The message will be
shown in the display during vehicle start up with the
current allowed mileage and accompanied by a single
chime. The remaining mileage can be pulled up anytime
by way of the “Messages” list within the instrument
cluster display.
• Engine Will Not Restart in XXXX mi Refill DEF — This
message will display when DEF driving range is less
than 311 miles. It is also displayed at 249 miles, 186
miles, and 124 miles. Continuous Display starts at 124
miles. DEF fluid top off is required with in the displayed
mileage. The message will be shown in the display
during vehicle start up with an updated distance mile-
age, and it will be accompanied by a single chime.
Starting at 100 miles, remaining range will be continu-
ously displayed while operating the vehicle. Chimes will also accompany the 75, 50 and 25 mile remaining
distances. The DEF Low telltale will be on continuously
until DEF fluid is topped off.
• Engine Will Not Restart Refill DEF — This message
will display when the DEF driving range is less than 1
mile, DEF fluid top off is required or the engine will not
restart. The message will be shown in the instrument
cluster display during vehicle start up, and it will be
accompanied by a single chime. The DEF Low telltale
will be illuminated continuously until DEF fluid tank is
filled with a minimum of two gallons of DEF.
Diesel Exhaust Fluid (DEF) Fault Warning
Messages
There are different messages which are displayed if the
vehicle detects that the DEF system has been filled with a
fluid other than DEF, has experienced component failures,
or when tampering has been detected.
When the DEF system needs to be serviced the following
warnings will display:
• Service DEF System See Dealer — This message will
display when the fault is initially detected and each time
the vehicle is started. The message will be accompanied
by a single chime and the Malfunction Indicator Light.
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We recommend you drive to your nearest authorized
dealer and have your vehicle serviced immediately. If
not corrected in 30 miles, vehicle will enter the “Engine
Will not restart in XXXmi Service DEF See dealer”
warning stage and message.
• Incorrect DEF Detected See Dealer — This message will
display if the DEF system has detected the incorrect
fluid has been introduced to the DEF tank. The message
will be accompanied by a single chime. We recommend
you drive to your nearest authorized dealer and have
your vehicle serviced immediately. If not corrected in 30
miles, vehicle will enter the Engine Will not restart in
XXX mi Service DEF See dealer warning stage and
message.
• Engine Will Not Restart in XXX mi Service DEF See
Dealer — This message is first displayed if the fault
detected is not serviced after 30 miles of operation. It is
also displayed at 250 miles, 186 miles, and 124 miles.
System service is required within the displayed mileage.
The message will be displayed in the instrument cluster
display during vehicle start up with an updated distance
mileage, and it will be accompanied by a single chime.
Starting at 124 miles, remaining range will be continu-
ously displayed while operating the vehicle. Chimes will also accompany the 75, 5,0 and 25 mile remaining
distances. We recommend you drive to your nearest
authorized dealer and have your vehicle serviced imme-
diately.
• 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 accompanied by a single
chime. Your Malfunction Indicator Light will be continu-
ously 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 mes-
sage will be accompanied by a single chime. Your
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GETTING TO KNOW YOUR INSTRUMENT PANEL 145

Malfunction Indicator Light will be continuously illumi-
nated. If the message appears and you can not start the
engine, we recommend you have your vehicle towed to
your nearest authorized dealer immediately.
NOTE:
• The gauge may take up to five seconds to update after
adding a gallon or more of Diesel Exhaust Fluid (DEF) to
the DEF tank. If you have a fault related to the DEF
system, the gauge may not update to the new level. See
your authorized dealer for service.
• The DEF gauge may also not immediately update after a
refill if the temperature of the DEF fluid is below 12F
(-11C). The DEF line heater will possibly warm up the
DEF fluid and allow the gauge to update after a period
of run time. Under very cold conditions, it is possible
that the gauge may not reflect the new fill level for
several drives.
Battery Saver On/Battery Saver Mode Message —
Electrical Load Reduction Actions — If Equipped
This vehicle is equipped with an Intelligent Battery Sensor
(IBS) to perform additional monitoring of the electrical
system and status of the vehicle battery. In cases when the IBS detects charging system failure, or
the vehicle battery conditions are deteriorating, electrical
load reduction actions will take place to extend the driving
time and distance of the vehicle. This is done by reducing
power to or turning off non-essential electrical loads.
Load reduction is only active when the engine is running.
It will display a message if there is a risk of battery
depletion to the point where the vehicle may stall due to
lack of electrical supply, or will not restart after the current
drive cycle.
When load reduction is activated, the message “Battery
Saver On” or “Battery Saver Mode” will appear in the
instrument cluster display.
These messages indicate the vehicle battery has a low state
of charge and continues to lose electrical charge at a rate
that the charging system cannot sustain.
NOTE:
•
The charging system is independent from load reduc-
tion. The charging system performs a diagnostic on the
charging system continuously.
• If the Battery Charge Warning Light is on it may indicate
a problem with the charging system. Refer to “Battery
Charge Warning Light” in “Warning And Indicator
146 GETTING TO KNOW YOUR INSTRUMENT PANEL

Lights And Messages” located in ”Getting To Know
Your Instrument Panel” for further information.
The electrical loads that may be switched off (if equipped),
and vehicle functions which can be effected by load reduction:
•Heated Seat/Vented Seats/Heated Wheel
• Heated/Cooled Cup Holders — If Equipped
• Rear Defroster And Heated Mirrors
• HVAC System
• 115V AC Power Inverter System
• Audio and Telematics System
Loss of the battery charge may indicate one or more of the
following conditions:
• The charging system cannot deliver enough electrical
power to the vehicle system because the electrical loads
are larger than the capability of charging system. The
charging system is still functioning properly.
• Turning on all possible vehicle electrical loads (e.g.
HVAC to max settings, exterior and interior lights,
overloaded power outlets +12V, 115V AC, USB ports)
during certain driving conditions (city driving, towing,
frequent stopping). •
Installing options like additional lights, upfitter electri-
cal accessories, audio systems, alarms and similar de-
vices.
• Unusual driving cycles (short trips separated by long
parking periods).
• The vehicle was parked for an extended period of time
(weeks, months).
• The battery was recently replaced and was not charged
completely.
• The battery was discharged by an electrical load left on
when the vehicle was parked.
• The battery was used for an extended period with the
engine not running to supply radio, lights, chargers,
+12V portable appliances like vacuum cleaner ’s, game
consoles and similar devices.
What to do when an electrical load reduction action
message is present (“Battery Saver On” or “Battery Saver
Mode”)
During a trip:
• Reduce power to unnecessary loads if possible:
– Turn off redundant lights (interior or exterior)4
GETTING TO KNOW YOUR INSTRUMENT PANEL 147

Oil Pressure Warning Light
Red TelltaleLight What It Means
Oil Pressure Warning Light
This light indicates low engine oil pressure. If the light turns on while driving, stop the vehicle
and shut off the engine as soon as possible. A chime will sound when this light turns on.
Do not operate the vehicle until the cause is corrected. This light does not indicate how much oil
is in the engine. The engine oil level must be checked under the hood.
Engine Temperature Warning Light
Red Warning
Light What It Means
Engine Temperature Warning Light
This light warns of an overheated engine condition. As engine coolant temperatures rise and the
gauge approaches
H,this indicator will illuminate and a single chime will sound after reaching a
set threshold.
If the light turns on while driving, safely pull over and stop the vehicle. If the A/C system is on,
turn it off. Also, shift the transmission into NEUTRAL and idle the vehicle. If the temperature
reading does not return to normal, turn the engine off immediately and call for service. Refer to
“If Your Engine Overheats” in “In Case Of Emergency” for further information.
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Oil Temperature Warning Light
Red TelltaleLight What It Means
Oil Temperature Warning Light
This telltale indicates engine oil temperature is high. If the light turns on while driving, stop the ve-
hicle and shut off the engine as soon as possible.
Battery Charge Warning Light
Red Telltale
Light What It Means
Battery Charge Warning Light
This light illuminates when the battery is not charging properly. If it stays on while the engine is
running, there may be a malfunction with the charging system. Contact your authorized dealer as
soon as possible. This indicates a possible problem with the electrical system or a related compo-
nent.
If jump starting is required, refer to “Jump-Starting” in “In Case Of Emergency.”
154 GETTING TO KNOW YOUR INSTRUMENT PANEL

Electronic Throttle Control (ETC) Warning Light
Red TelltaleLight What It Means
Electronic Throttle Control (ETC) Warning Light
This light informs you of a problem with the Electronic Throttle Control (ETC) system. If a prob-
lem is detected while the engine is running, the light will either stay on or flash depending on
the nature of the problem. Cycle the ignition when the vehicle is safely and completely stopped
and the transmission is placed in the PARK position. The light should turn off. If the light re-
mains on with the vehicle under power, your vehicle will usually be drivable; however, see an
authorized dealer for service as soon as possible.
If the light continues to flash when the engine vehicle under power, immediate service is re-
quired and you may experience reduced performance, and your vehicle may require towing. The
light will come on when the ignition is placed in the ON/RUN position and remain on briefly as
a bulb check. If the light does not come on during starting, have the system checked by an au-
thorized dealer.
Electric Power Steering Fail Warning Light
Red Telltale
Light What It Means
Electric Power Steering Fail Warning
This light is used to manage the electrical warning of the EPS (Power Steering System). Refer to
“Power Steering” in “Starting And Operating” for further information.
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