Instrument Cluster Display; Diesel Displays; Fuel Filter Life Reset - Jeep Grand Cherokee 2018 Manual

4. Temperature Gauge
• The temperature gauge shows engine
coolant temperature. Any reading within
the normal range indicates that the engine
cooling system is operating satisfactorily.
• The gauge pointer will likely indicate a
higher temperature when driving in hot
weather or up mountain grades. It should
not be allowed to exceed the upper limits of
the normal operating range.
WARNING!
Driving with a hot engine cooling system could
damage your vehicle. If the temperature gauge
reaches "H" pull over and stop the vehicle. Idle
the vehicle with the air conditioner turned off
until the gauge drops back into the normal range
and is no longer red. If the gauge remains on the
"H", turn the engine off immediately and call an
authorized dealer for service.
CAUTION!
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 ve-
hicle overheats. If you decide to look under
the hood yourself, see "Maintaining Your
Vehicle". Follow the warnings under the Cool-
ing 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.
NOTE:
The hard telltales will illuminate for a bulb check
when the ignition is first cycled.
INSTRUMENT CLUSTER
DISPLAY
Your vehicle is equipped with an instrument
cluster display, which offers useful information to
the driver. With the ignition in the STOP/OFF
position, opening/closing of a door will activate
the display for viewing, and display the total
miles or kilometers in the odometer.

Diesel Displays

When the appropriate conditions exist, the fol-
lowing messages display in the instrument clus-
ter display:
• Exhaust Filter Nearing Full Safely Drive at
Highway Speeds to Clear
• Exhaust Filter Full – Power Reduced See
Dealer
• Exhaust System Service Required – See
Dealer
• Exhaust System – Filter XX% Full Service
Required See Dealer
• Exhaust System Regeneration in Process
Continue Driving
• Exhaust System – Regeneration Completed
• 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 Dealer

Fuel Filter Life Reset

The cluster will display the "Fuel System Service
Required – 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.
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