fuel cap JEEP WRANGLER 2010 Owners Manual

24. Odometer / Trip Odometer Display Area
The odometer shows the total distance the vehicle has
been driven. The trip odometer shows individual trip
mileage. Refer to “Odometer / Trip Odometer / ECO
(Fuel Saver Indicator) Button” for additional information.
U.S. Federal regulations require that upon transfer of
vehicle ownership, the seller certify to the purchaser the
correct mileage that the vehicle has been driven. If your
odometer needs to be repaired or serviced, the repair
technician should leave the odometer reading the same
as it was before the repair or service. If s/he cannot do so,
then the odometer must be set at zero, and a sticker must
be placed in the door jamb stating what the mileage was
before the repair or service. It is a good idea for you to
make a record of the odometer reading before the repair/
service, so that you can be sure that it is properly reset, or
that the door jamb sticker is accurate if the odometer
must be reset at zero.Vehicle Odometer Messages
When the appropriate conditions exist, the following
odometer messages will display:
ECO
................... Fuel Saver Indicator Off
ECO-ON ................ Fuel Saver Indicator On
door ............................. Door Ajar
gATE ........................... Liftgate Ajar
LoW tirE ..................... LowTirePr essure
HOTOIL ............ Tr ansmission Oil Temperature
Above Normal Limits
gASCAP ....................... Fuel Cap Fault
noFUSE .......................... Fuse Fault
CHAngE OIL ............... Oil Change Required
ESPOFF ...................... ESP Deactivated
ECO / ECO-ON (Fuel Saver Indicator) — If Equipped
The ECO-ON indicator will illuminate when you are
driving in a fuel efficient manner and can be used to
modify driving habits in order to increase fuel economy.
254 UNDERSTANDING YOUR INSTRUMENT PANEL

gASCAP
If the vehicle diagnostic system determines that the fuel
filler cap is loose, improperly installed, or damaged, a
“gASCAP” message will display in the odometer display
area. Tighten the fuel filler cap properly and press the
TRIP ODOMETER button to turn off the message. If the
problem continues, the message will appear the next time
the vehicle is started.
noFUSE
If the vehicle diagnostic system determines that the
Ignition Off Draw (IOD) fuse is improperly installed, or
damaged, a “noFUSE” message will display in the odom-
eter display area. For further information on fuses and
fuse locations refer to “Fuses” in “Maintaining Your
Vehicle”.CHAngE OIL Message
Your vehicle is equipped with an engine oil change
indicator system. The “CHANgE OIL” message will flash
in the instrument cluster odometer for approximately
12 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 turn the ignition switch to the ON/RUN
position. To turn off the message temporarily, press and
release the Trip Odometer button on the instrument
cluster. To reset the oil change indicator system (after
performing the scheduled maintenance), refer to the
following procedure:
256 UNDERSTANDING YOUR INSTRUMENT PANEL

▫Base System ........................ 408
▫ General Information .................. 411
 Fuel Requirements ..................... 411
▫ Reformulated Gasoline ................ 412
▫ Gasoline/Oxygenate Blends ............. 412
▫ E-85 Usage In Non-Flex Fuel Vehicles ...... 413
▫ MMT In Gasoline .................... 413
▫ Materials Added To Fuel ............... 414
▫ Fuel System Cautions ................. 414
▫ Carbon Monoxide Warnings ............ 415
 Adding Fuel ......................... 416
▫ Fuel Filler Cap (Gas Cap) .............. 416
▫ Loose Fuel Filler Cap Message ........... 418
Vehicle Loading ...................... 418
▫ Certification Label ................... 418
 Trailer Towing ........................ 420
▫ Common Towing Definitions ............ 421
▫ Trailer Hitch Classification .............. 424
▫ Trailer Towing Weights (Maximum Trailer
Weight Ratings) ..................... 424
▫ Trailer And Trailer Tongue Weight ........ 427
▫ Towing Requirements ................. 428
▫ Towing Tips ........................ 433
 Recreational Towing (Behind Motorhome, Etc.) . 435
▫ Two-Wheel Drive Models .............. 435
▫ Four-Wheel Drive Models .............. 436
330 STARTING AND OPERATING

WARNING! (Continued)
•Guard against carbon monoxide with proper
maintenance. Have the exhaust system inspected
every time the vehicle is raised. Have any abnor-
mal conditions repaired promptly. Until repaired,
drive with all side windows fully open.
•Keep the swing gate closed when driving your
vehicle to prevent carbon monoxide and other
poisonous exhaust gases from entering the vehicle.
ADDING FUEL
Fuel Filler Cap (Gas Cap)
The gas cap is located on the driver’s side of the vehicle.
If the gas cap is lost or damaged, be sure the replacement
cap is the correct one for this vehicle.

Loose Fuel Filler Cap Message
After fuel has been added, the vehicle diagnostic system
can determine if the fuel filler cap is possibly loose,
improperly installed, or damaged. If the system detects a
malfunction, the “gASCAP” message will display in the
odometer display. Tighten the gas cap until aclicking
sound is heard. This is an indication that the gas cap is
properly tightened. Press the odometer reset button to
turn the message off. If the problem persists, the message
will appear the next time the vehicle is started. This
might indicate a damaged cap. If the problem is detected
twice in a row, the system will turn on the MIL. Resolving
the problem will turn the MIL off.
VEHICLE LOADING
Certification Label
As required by National Highway Traffic Safety Admin-
istration regulations, your vehicle has a certification label
affixed to the driver’s side door or B-Pillar. This label contains the month and year of manufacture,
Gross Vehicle Weight Rating (GVWR), Gross Axle Weight
Rating (GAWR) front and rear, and Vehicle Identification
Number (VIN). A Month-Day-Hour (MDH) number is
included on this label and indicates the month, day, and
hour of manufacture. The bar code that appears on the
bottom of the label is your VIN.
Gross Vehicle Weight Rating (GVWR)
The GVWR is the total permissible weight of your vehicle
including driver, passengers, vehicle, options, trailer
tongue weight, and cargo. The label also specifies maxi-
mum capacities of front and rear axle systems (GAWR).
Total load must be limited, so GVWR, and front and rear
GAWR are not exceeded.
418 STARTING AND OPERATING

Engine Oil Viscosity (SAE Grade)
SAE 5W-20 engine oil is recommended for all operating
temperatures. This engine oil improves low temperature
starting and vehicle fuel economy.
The engine oil filler cap also shows the recommended
engine oil viscosity for your engine. For information on
engine oil filler cap location, refer to “Engine Compart-
ment” in “Maintaining Your Vehicle” for further informa-
tion.
Lubricants which do not have both, the engine oil certi-
fication mark and the correct SAE viscosity grade num-
ber, should not be used.
Synthetic Engine Oils
Synthetic engine oils can be used if the recommended oil
quality requirements are met, and the recommended
maintenance intervals for oil and filter changes are
followed.
Materials Added to Engine Oils
The manufacturer strongly recommends against the ad-
dition of any additives (other than leak detection dyes) to
engine oil. Engine oil is an engineered product and its
performance may be impaired by supplemental
additives.
Disposing of Used Engine Oil and Oil Filters
Care should be taken in disposing of used engine oil and
oil filters from your vehicle. Used oil and oil filters,
indiscriminately discarded, can present a problem to the
environment. Contact your authorized dealer, service
station, or governmental agency for advice on how and
where used oil and oil filters can be safely discarded in
your area.
Engine Oil Filter
The engine oil filter should be replaced with a new filter
at every engine oil change.
462 MAINTAINING YOUR VEHICLE

Flooded, Starting...................... 332
Fuel Requirements .................. 41 1,501
Jump Starting ......................... 446
Oil .............................. 460,501
Oil Disposal .......................... 462
Oil Filter ............................ 462
Oil Selection .......................... 501
Overheating .......................... 440
Starting ............................. 331
Temperature Gauge .................... 251
Engine Oil Viscosity ...................... 462
Engine Oil Viscosity Chart ................. 462
Enhanced Accident Response Feature .......... 58
Entry System, Illuminated .................. 19
Event Data Recorder ...................... 60
Exhaust Gas Caution ................... 76,415
Exhaust System ....................... 76,468
Extender, Seat Belt ........................ 49
Exterior Finish Care ...................... 483 Exterior Lights
.......................... 79
Fabric Care ......................... 485,487
Fabric Top ............................. 487
Filters Air Cleaner .......................... 463
Engine Oil ........................... 462
Finish Care ............................ 483
Flashers Hazard Warning ....................... 440
Turn Signal ................... 79,247,499,500
Flooded Engine Starting ................... 332
Fluid Capacities ......................... 501
Fluid Leaks ............................. 79
Fluid Level Checks ...................... 482
Automatic Transmission ................. 478
Engine Oil ........................... 460
Manual Transmission ................... 481
Power Steering ........................ 368
540 INDEX