2010 JEEP GRAND CHEROKEE engine

23. Charging System Light
This light shows the status of the electrical charging
system. The light should come on when the ignition
switch is first turned ON and remain on briefly as a bulb
check. If the light stays on or comes on while driving, turn
off some of the vehicle’s non-essential electrical devices or
increase engine speed (if at idle). If the charging system
light remains on, it means that the vehicle is experiencing
a problem with the charging system. Obtain SERVICE
IMMEDIATELY. See an authorized dealer.
If jump starting is required, refer to “Jump Starting
Procedures” in “What To Do In Emergencies”.
24. Low Fuel Warning Light When the fuel level reaches approximately 2.3 U.S.
Gallons (8.7 Liters) this light will come on and
remain on until fuel is added. The Low Fuel
Warning Light may turn on and off again, especially
during and after hard braking, accelerations, or turns.
This occurs due to the shifting of the fuel in the tank.
ELECTRONIC VEHICLE INFORMATION CENTER
(EVIC)
The Electronic Vehicle Information Center (EVIC) fea-
tures a driver-interactive display that is located in the
instrument cluster.
Electronic Vehicle Information Center
166 UNDERSTANDING YOUR INSTRUMENT PANEL

•1/4 Mile (if equipped with Performance Pages)
•Instantaneous G-Force (if equipped with Performance
Pages)
•Peak G-Force (if equipped with Performance Pages)
•RKE BATTERY LOW
•VEHICLE NOT IN PARK
•IGNITION POSITION
•PRESS BRAKE TO START
•INSERT KEY
•TURN TO ON
Trip Functions
Press and release the MENU button until one of the
following Trip Functions displays in the EVIC:
•Distance To Empty
•Trip A
•Trip B
•Elapsed Time
•Service Distance
•Engine Oil Pressure
•Engine Oil Temperature
•Display Units of Measure In
Press the SCROLL button to cycle through all the Trip
Computer functions.
The Trip Functions mode displays the following informa-
tion:
•Distance To Empty (DTE)
Shows the estimated distance that can be traveled with
the fuel remaining in the tank. This estimated distance is
determined by a weighted average of the instantaneous
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UNDERSTANDING YOUR INSTRUMENT PANEL 171

and average fuel economy, according to the current fuel
tank level. DTE cannot be reset through the FUNCTION
SELECT button.
NOTE:Significant changes in driving style or vehicle
loading will greatly affect the actual drivable distance of
the vehicle, regardless of the DTE displayed value.
When the DTE value is less than 30 miles (48 km)
estimated driving distance, the DTE display will change
to a LOW FUEL message. This display will continue
until the vehicle runs out of fuel. Adding a significant
amount of fuel to the vehicle will turn off the LOW
FUEL message and a new DTE value will display.
•Trip A
Shows the total distance traveled for Trip A since the last
reset.
•Trip B
Shows the total distance traveled for Trip B since the last
reset.
•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.
•Engine Oil Pressure
Shows the current engine oil pressure. The scale will read
from 0–100 psi (0–689 kPa).
•Engine Oil Temperature
Shows the current engine oil temperature. The scale will
read from 140° – 300°F (60° – 149°C).
172 UNDERSTANDING YOUR INSTRUMENT PANEL

Compass Display
The compass readings indicate the direction
the vehicle is facing. Press and release the
COMPASS/TEMPERATURE button to dis-
play one of eight compass readings and the
outside temperature.
NOTE: The system will display the last known outside
temperature when starting the vehicle and may need to
be driven several minutes before the updated tempera-
ture is displayed. Engine temperature can also affect the
displayed temperature, therefore temperature readings
are not updated when the vehicle is not moving.
Automatic Compass Calibration
When the vehicle is new, the compass may appear erratic
and the EVIC will display “CAL” until the compass is
calibrated. To complete the calibration process, drive
slowly (5 mph/ 8 km/h) in one or more complete circles in an area, free from magnetic material until the CAL
indicator displayed in the EVIC turns off. The Compass
will now function normally.
Manual Compass Calibration
If the compass appears erratic and the “CAL” indicator
does not appear in the EVIC display, you must put the
compass into the Calibration Mode manually as follows:
1. Turn on the ignition switch.
2. Press the MENU button until Personal Settings
(Customer-Programmable Features) menu is reached.
3. Press the SCROLL button until “Calibrate Compass” is
displayed in the EVIC.
4. Press and release the FUNCTION SELECT button to
start the calibration. The “CAL” indicator will be dis-
played in the EVIC.COMPASS
Button
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UNDERSTANDING YOUR INSTRUMENT PANEL 177

The system will automatically control re-
circulation. However, pressing this but-
ton will temporarily put the system in
“Recirculation” mode. This can be used
when outside conditions such as smoke,
odors, dust, or high humidity are present. This will cause
the LED to illuminate.
NOTE:
•The surface of the climate control panel, and the top
center of the instrument panel should be kept free of
debris due to the climate control sensor’s location.
Mud on the windshield may also cause poor operation
of this system.
•To provide you with maximum comfort in the auto-
matic mode, during cold start-ups the blower fan will
remain off until the engine warms up. However, the
fan will engage immediately if the defrost mode is
selected or if you manually select a blower speed.
•Under certain conditions (after the vehicle is turned
off) the climate control system may recalibrate and a
noise may be heard for 20 seconds. This is part of
normal operation.
•Most of the time, when in Automatic operation, you
can temporarily put the system into Recirculation
mode by pressing the “Recirculation” button. How-
ever, under certain conditions in automatic the system
is blowing air out of the defrost vents. When these
conditions are present, and the “Recirculation” button
is pressed, the indicator will flash and remain off. This
tells you that you are unable to go into Recirculation
mode at this time. If you would like to go to Recircu-
lation mode, you must first move your mode knob to
Panel, Panel/Floor, or Floor, then press the “Recircu-
lation” button. This feature will reduce the possibility
of window fogging.
Recirculation
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UNDERSTANDING YOUR INSTRUMENT PANEL 227

additional engine cooling may be required. If this situa-
tion is encountered, operate the transmission in a lower
gear to increase engine RPM, coolant flow and fan speed.
When stopped in heavy traffic, it may be necessary to
shift into NEUTRAL (N) and press the accelerator
slightly for fast idle operation to increase coolant flow
and fan speed.
Your air conditioning system is also equipped with an
automatic recirculation system. When the system senses
a heavy load or high heat conditions, it may use partial
Recirculation A/C mode to provide additional comfort.
Winter Operation
When operating the system during the winter months,
make sure the air intake, located directly in front of the
windshield, is free of ice, slush, snow, or other
obstructions.
Vacation Storage
Anytime you store your vehicle, or keep it out of service
(i.e. vacation) for two weeks or more, run the air condi-
tioning system at idle for about five minutes in the fresh
air and high blower setting. This will ensure adequate
system lubrication to minimize the possibility of com-
pressor damage when the system is started again.
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UNDERSTANDING YOUR INSTRUMENT PANEL 233

STARTING AND OPERATING
CONTENTS
Starting Procedures .................... 238
▫ Normal Starting ..................... 238
▫ Extreme Cold Weather
(Below 20°F Or 29°C)............... 239
▫ If Engine Fails To Start ................ 239
▫ After Starting ....................... 240
 Automatic Transmission ................. 240
▫ Key Ignition Park Interlock ............. 241
▫ Brake/Transmission Shift Interlock System . . 241 ▫
Brake/Transmission Interlock Manual
Override .......................... 241
▫ Five–Speed Automatic Transmission ....... 242
▫ Gear Ranges ........................ 243
▫ Rocking The Vehicle .................. 244
 AutoStick .......................... 245
▫ Operation ......................... 246
▫ General Information .................. 247
 Power Steering ....................... 248
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▫Replacement Tires .................... 277
 Tire Rotation Recommendations ........... 278
 Tire Pressure Monitor System (TPMS) ....... 279
▫ Premium System .................... 279
▫ General Information .................. 282
 Fuel Requirements ..................... 282
▫ 6.1L Engine ........................ 282
▫ Reformulated Gasoline ................ 283
▫ Gasoline/Oxygenate Blends ............. 283
▫ E85 Usage In Non-Flex Fuel Vehicles ...... 284
▫ MMT In Gasoline .................... 284
▫ Materials Added To Fuel ............... 285
▫ Fuel System Cautions ................. 285 ▫
Carbon Monoxide Warnings ............ 286
 Adding Fuel ......................... 287
▫ Fuel Filler Cap (Gas Cap) .............. 287
▫ Loose Fuel Filler Cap Message ........... 288
 Trailer Towing ........................ 289
▫ Common Towing Definitions ............ 289
▫ Trailer Hitch Classification .............. 292
▫ Trailer Towing Weights
(Maximum Trailer Weight Ratings) ........ 293
▫ Trailer And Trailer Tongue Weight ........ 293
▫ Towing Requirements ................. 295
▫ Towing Tips ........................ 298
 Recreational Towing
(Behind Motorhome, Etc.) ................ 299
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STARTING AND OPERATING 237