2012 JEEP GRAND CHEROKEE coolant temperature

19. Fuel Gauge
The pointer shows the level of fuel in the fuel tank when
the ignition switch is in the ON/RUN position.
20. Electronic Vehicle Information Center (EVIC) White
Telltale Area
This area will display the EVIC reconfigurable white
telltales. For further information, refer to “Electronic
vehicle Information Center (EVIC)”.
21. Electronic Vehicle Information Center (EVIC)
Amber Telltale Area
This area will display the EVIC reconfigurable amber
caution telltales. For further information, refer to “Elec-
tronic vehicle Information Center (EVIC)”.
22. Electronic Vehicle Information Center (EVIC) Red
Telltale Area
This area will display the EVIC reconfigurable red tell-
tales. For further information, refer to “Electronic vehicle
Information Center (EVIC)”.23. Electronic Stability Control (ESC) OFF Indicator
Light — If Equipped
This light indicates the Electronic Stability Con-
trol (ESC) is off.
24. Vehicle Security Light
This light will flash rapidly for approximately
15 seconds when the vehicle theft alarm is
arming. The light will flash at a slower speed
continuously after the alarm is set. The security
light will also come on for about three seconds when the
ignition is first turned on.
25. Temperature Gauge
The temperature gauge shows engine coolant tempera-
ture. Any reading within the normal range indicates that
the engine cooling system is operating satisfactorily.
292 UNDERSTANDING YOUR INSTRUMENT PANEL

The gauge pointer will likely indicate a higher tempera-
ture when driving in hot weather, up mountain grades,
or when towing a trailer. It should not be allowed to
exceed the upper limits of the normal operating range.
CAUTION!
Driving with a hot engine cooling system could
damage your vehicle. If the temperature gauge reads
“H” pull over and stop the vehicle. Idle the vehicle
with the air conditioner turned off until the pointer
drops back into the normal range. If the pointer
remains on the “H” and you hear continuous chimes,
turn the engine off immediately and call an autho-
rized dealership for service.
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-
ship for service if your vehicle overheats. If you
decide to look under the hood yourself, see “Main-
taining Your Vehicle”. Follow the warnings under the
Cooling System Pressure Cap paragraph.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 293

Elapsed Time
Shows the total elapsed time of travel since the last reset
when the ignition switch is in the ACC position. Elapsed
time will increment when the ignition switch is in the ON
or START position.
To Reset The Display
Reset will only occur while a resettable function is being
displayed. Press and release the SELECT button once to
clear the resettable function being displayed. To reset all
resettable functions, press and hold the SELECT button
for two seconds. The current display will reset along with
other functions.
Units
Press and release the UP or DOWN button until “Units”
displays highlighted in the EVIC and press the SELECT
button. The EVIC, odometer, and navigation system (if
equipped) can be changed between English and Metric
units of measure. To make your selection, scroll up ordown until the preferred setting is highlighted, then
press and release the SELECT button until a check-mark
appears next to the setting, showing that the setting has
been selected.
Vehicle Info (Customer Information Features)
Press and release the UP or DOWN button until “Vehicle
Info” displays in the EVIC and press the SELECT button.
Press the UP and DOWN button to scroll through the
available information displays, then press SELECT to
display any one of the following choices.
•Coolant Temp
Displays the actual coolant temperature.
•Oil Temperature
Displays the actual oil temperature.
•Oil Pressure
Displays the actual oil pressure.
312 UNDERSTANDING YOUR INSTRUMENT PANEL

to high. This allows the heater core to act as a
supplement to the radiator and aids in removing heat
from the engine cooling system.
CAUTION!
Driving with a hot cooling system could damage
your vehicle. If the temperature gauge reads HOT
(H), pull over and stop the vehicle. Idle the vehicle
with the air conditioner turned off until the pointer
drops back into the normal range. If the pointer
remains on HOT (H), and you hear continuous
chimes, turn the engine off immediately and call for
service.
WARNING!
You or others can be badly burned by hot engine
coolant (antifreeze) or steam from your radiator. If
you see or hear steam coming from under the hood,
do not open the hood until the radiator has had time
to cool. Never try to open a cooling system pressure
cap when the radiator or coolant bottle is hot.
JACKING AND TIRE CHANGING
Run Flat Tires
This vehicle is equipped with run flat tires. Although the
tires are designed with a “run flat” feature that allows the
vehicle to be driven approximately 50 miles (80 km) at
55 mph (88 km/h). immediate service should be ob-
tained.6
WHAT TO DO IN EMERGENCIES 461

Cooling System
WARNING!
•When working near the radiator cooling fan, dis-
connect the fan motor lead or turn the ignition
switch to the OFF position. The fan is temperature
controlled and can start at any time the ignition
switch is in the ON position.
•You or others can be badly burned by hot engine
coolant (antifreeze) or steam from your radiator. If
you see or hear steam coming from under the
hood, do not open the hood until the radiator has
had time to cool. Never try to open a cooling
system pressure cap when the radiator is hot.
Coolant Checks
Check the engine coolant (antifreeze) protection every
12 months (before the onset of freezing weather, where
applicable). If the engine coolant (antifreeze) is dirty orrusty in appearance, the system should be drained,
flushed and refilled with fresh coolant. Check the front of
the A/C condenser for any accumulation of bugs, leaves,
etc. If dirty, clean by gently spraying water from a garden
hose vertically down the face of the condenser.
Check the coolant recovery bottle tubing for brittle rub-
ber, cracking, tears, cuts and tightness of the connection
at the bottle and radiator. Inspect the entire system for
leaks.
With the engine at normal operating temperature (but
not running), check the cooling system pressure cap for
proper vacuum sealing by draining a small amount of
engine coolant (antifreeze) from the radiator drain cock.
If the cap is sealing properly, the engine coolant (anti-
freeze) will begin to drain from the coolant recovery
bottle. DO NOT REMOVE THE COOLANT PRESSURE
CAP WHEN THE COOLING SYSTEM IS HOT.
7
MAINTAINING YOUR VEHICLE 489

CAUTION! (Continued)
•This vehicle has not been designed for use with
Propylene Glycol based engine coolant (anti-
freeze). Use of Propylene Glycol based engine
coolant (antifreeze) is not recommended.
Adding Coolant
Your vehicle has been built with an improved engine
coolant (antifreeze) that allows extended maintenance
intervals. This engine coolant (antifreeze) can be used up
to 5 Years or 102,000 miles (170 000 km) before replace-
ment. To prevent reducing this extended maintenance
period, it is important that you use the same engine
coolant (antifreeze) throughout the life of your vehicle.
Please review these recommendations for using Hybrid
Organic Additive Technology (HOAT) engine coolant
(antifreeze).
When adding engine coolant (antifreeze):
•The manufacturer recommends using MOPAR
Antifreeze/ Coolant 5 Year/100,000 Mile Formula
HOAT (Hybrid Organic Additive Technology) or
equivalent.
•Mix a minimum solution of 50% HOAT engine coolant
(antifreeze) and distilled water. Use higher concentra-
tions (not to exceed 70%) if temperatures below34°F
(37°C ) are anticipated.
•Use only high purity water such as distilled or deion-
ized water when mixing the water/engine coolant
(antifreeze) solution. The use of lower quality water
will reduce the amount of corrosion protection in the
engine cooling system.
Please note that it is the owner’s responsibility to main-
tain the proper level of protection against freezing ac-
cording to the temperatures occurring in the area where
the vehicle is operated.
7
MAINTAINING YOUR VEHICLE 491

rules for your community. To prevent ingestion by ani-
mals or children, do not store ethylene glycol based
engine coolant (antifreeze) in open containers or allow it
to remain in puddles on the ground. If ingested by a child
or pet, seek emergency assistance immediately. Clean up
any ground spills immediately.
Coolant Level
The coolant bottle provides a quick visual method for
determining that the coolant level is adequate. With the
engine off and cold, the level of the engine coolant
(antifreeze) in the bottle should be between the ranges
indicated on the bottle.
The radiator normally remains completely full, so there is
no need to remove the radiator cap unless checking for
engine coolant (antifreeze) freeze point or replacing en-
gine coolant (antifreeze). Advise your service attendantof this. As long as the engine operating temperature is
satisfactory, the coolant bottle need only be checked once
a month.
When additional engine coolant (antifreeze) is needed to
maintain the proper level, it should be added to the
coolant bottle. Do not overfill.Points To Remember
NOTE:When the vehicle is stopped after a few miles (a
few kilometers) of operation, you may observe vapor
coming from the front of the engine compartment. This is
normally a result of moisture from rain, snow, or high
humidity accumulating on the radiator and being vapor-
ized when the thermostat opens, allowing hot engine
coolant (antifreeze) to enter the radiator.
If an examination of your engine compartment shows no
evidence of radiator or hose leaks, the vehicle may be
safely driven. The vapor will soon dissipate.
7
MAINTAINING YOUR VEHICLE 493

Adaptive Cruise Control (ACC) (Cruise Control) . . 201
Adding Engine Coolant (Antifreeze).......... 491
Adding Fuel........................... 440
Additives, Fuel......................... 438
Air Conditioner Maintenance............... 481
Air Conditioning Refrigerant............... 482
Air Conditioning System.................. 361
Air Conditioning, Operating Tips............ 367
Air Pressure, Tires....................... 419
Airbag.............................. 67,76
Airbag Deployment....................... 78
Airbag Light..................... 75,80,97,284
Airbag Maintenance....................... 79
Airbag, Side........................ 70,73,76
Airbag, Window (Side Curtain)........... 71,73,76
Alarm (Security Alarm)................. 18,292
Alarm, Panic............................ 24
Alterations/Modifications, Vehicle............. 8
Antenna, Satellite Radio................... 347Anti-Lock Brake System (ABS).............. 400
Anti-Lock Warning Light.................. 291
Anti-Theft System....................... 292
Antifreeze (Engine Coolant)..............490,517
Disposal........................... 492
Appearance Care........................ 499
Assistance Towing....................... 125
Auto Down Power Windows................ 41
Automatic Dimming Mirror................ 108
Automatic Door Locks..................... 33
Automatic Headlights.................... 180
Automatic Temperature Control (ATC)......... 361
Automatic Transmission................382,498
Autostick.......................... 389
Fluid Level Check.................... 499
FluidType ......................... 498
Special Additives..................... 498
Autostick............................. 389
Auxiliary Electrical Outlet (Power Outlet)...... 258
548 INDEX