2011 JEEP GRAND CHEROKEE fuel cap

INSTRUMENT CLUSTER DESCRIPTIONS
1. Tachometer
Indicates the engine speed in revolutions per minute
(RPM x 1000).
2. Airbag Warning LightThis light will turn on for four to eight seconds
as a bulb check when the ignition switch is first
turned to the ON/RUN position. If the light is
either not on during starting, stays on, or turns
on while driving, then have the system inspected at an
authorized dealer as soon as possible. Refer to “Occupant
Restraints” in “Things To Know Before Starting Your
Vehicle” for further information.
3. Malfunction Indicator Light (MIL) The Malfunction Indicator Light (MIL) is part of
an onboard diagnostic system called OBD II that
monitors engine and automatic transmission con-
trol systems. The light will illuminate when the key is in the ON/RUN position before engine start. If the bulb
does not come on when turning the key from OFF to
ON/RUN, have the condition checked promptly.
Certain conditions such as a loose or missing gas cap,
poor fuel quality, etc., may illuminate the light after
engine start. The vehicle should be serviced if the light
stays on through several of your typical driving cycles. In
most situations, the vehicle will drive normally and will
not require towing.
CAUTION!
Prolonged driving with the MIL on could cause
damage to the engine control system. It also could
affect fuel economy and drivability. If the MIL is
flashing, severe catalytic converter damage and
power loss will soon occur. Immediate service is
required.
248 UNDERSTANDING YOUR INSTRUMENT PANEL

•Air Suspension UpThe air suspension up telltale will illuminate
when the air suspension is in use. For further
information, refer to “Starting And Operating”.
•Air Suspension DownThe air suspension down telltale will illumi-
nate when the air suspension is in use. For
further information, refer to “Starting And Op-
erating”.
•Low Fuel LightWhen the fuel level reaches approximately 3.0 gal
(11.0 L) this light will turn on, and remain on until
fuel is added.
•Loose Gascap Indicator If the vehicle diagnostic system determines
that the fuel filler cap is loose, improperly
installed, or damaged, a loose gascap indicator will display in the telltale display area. Tighten the fuel
filler cap properly and press the SELECT button to turn
off the message. If the problem continues, the message
will appear the next time the vehicle is started.
A loose, improperly installed, or damaged fuel filler cap
may also turn on the Malfunction Indicator Light (MIL).
•Windshield Washer Fluid Low Indicator
This light will turn on to indicate the wind-
shield washer fluid is low.
•SERV 4WDThe SERV 4WD light monitors the electric shift
4WD system. If the SERV 4WD light stays on or
comes on during driving, it means that the
4WD system is not functioning properly and
that service is required.
268 UNDERSTANDING YOUR INSTRUMENT PANEL

▫Carbon Monoxide Warnings ............ 428
 Flexible Fuel (3.6L Engine Only) —
If Equipped .......................... 429
▫ E-85 General Information ............... 429
▫ Ethanol Fuel (E-85) ................... 430
▫ Fuel Requirements ................... 430
▫ Selection Of Engine Oil For Flexible Fuel
Vehicles (E-85) And Gasoline Vehicles ...... 431
▫ Starting ........................... 432
▫ Cruising Range ...................... 432
▫ Replacement Parts ................... 432
▫ Maintenance ........................ 432 
Adding Fuel ......................... 433
▫ Fuel Filler Cap (Gas Cap) .............. 433
▫ Loose Fuel Filler Cap Message ........... 436
 Vehicle Loading ...................... 436
▫ Certification Label ................... 436
 Trailer Towing ........................ 438
▫ Common Towing Definitions ............ 439
▫ Trailer Hitch Classification .............. 443
▫ Trailer Towing Weights
(Maximum Trailer Weight Ratings) ........ 444
▫ Trailer And Tongue Weight ............. 445
▫ Towing Requirements ................. 446
▫ Towing Tips ........................ 451
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STARTING AND OPERATING 341

CAUTION! (Continued)
•After inspecting or adjusting the tire pressure
always reinstall the valve stem cap. This will
prevent moisture and dirt from entering the valve
stem, which could damage the Tire Pressure Moni-
toring Sensor.
NOTE:
•The TPMS is not intended to replace normal tire care
and maintenance, or to provide warning of a tire
failure or condition.
•The TPMS should not be used as a tire pressure gauge
while adjusting your tire pressure.
•Driving on a significantly under-inflated tire causes
the tire to overheat and can lead to tire failure.
Under-inflation also reduces fuel efficiency and tire
tread life, and may affect the vehicle’s handling and
stopping ability.
•The TPMS is not a substitute for proper tire mainte-
nance, and it is the driver ’s responsibility to maintain
correct tire pressure using an accurate tire gauge, even
if under-inflation has not reached the level to trigger
illumination of the Tire Pressure Monitoring Telltale
Light.
•Seasonal temperature changes will affect tire pressure,
and the TPMS will monitor the actual tire pressure in
the tire.
Base System
The Tire Pressure Monitor System (TPMS) uses wireless
technology with wheel rim-mounted electronic sensors to
monitor tire pressure levels. Sensors, mounted to each
wheel as part of the valve stem, transmit tire pressure
readings to the Receiver Module.
NOTE: It is particularly important, for you to regularly
check the tire pressure in all of your tires, and to maintain
the proper pressure.
5
STARTING AND OPERATING 417

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 liftgate closed when driving your vehicle
to prevent carbon monoxide and other poisonous
exhaust gases from entering the vehicle.
FLEXIBLE FUEL (3.6L ENGINE ONLY) —
IF EQUIPPED
E-85 General Information
The information in this section is for Flexible Fuel ve-
hicles only. These vehicles can be identified by a unique
fuel filler door label that statesEthanol (E-85) or Un-
leaded Gasoline Only. This section only covers those
subjects that are unique to these vehicles. Please refer to the other sections of this manual for information on
features that are common between Flexible Fuel and
gasoline-only powered vehicles.E-85 Fuel Cap
5
STARTING AND OPERATING 429

CAUTION!
Only vehicles with the E-85 fuel filler door label can
operate on E-85.
Ethanol Fuel (E-85)
E-85 is a mixture of approximately 85% fuel ethanol and
15% unleaded gasoline.
WARNING!
Ethanol vapors are extremely flammable and could
cause serious personal injury. Never have any smok-
ing materials lit in or near the vehicle when remov-
ing the fuel filler tube cap (gas cap) or filling the
tank. Do not use E-85 as a cleaning agent and never
use it near an open flame.
Fuel Requirements
Your vehicle will operate on both unleaded gasoline with
an octane rating of 87, or E-85 fuel, or any mixture of
these two. For best results, a refueling pattern that
alternates between E-85 and unleaded gasoline should be
avoided.
E-85 Badge
430 STARTING AND OPERATING

ADDING FUEL
Fuel Filler Cap (Gas Cap)
The gas cap is located behind the locking fuel filler door,
on the driver’s side of the vehicle. If the gas cap is lost or
damaged, be sure the replacement cap is for use with this
vehicle.
1. Press the fuel filler door release switch (located under
the headlamp switch).
Fuel Filler Door Release Switch
5
STARTING AND OPERATING 433

2. Open the fuel filler door, and remove the fuel filler
cap.CAUTION!
•Damage to the fuel system or emission control
system could result from using an improper fuel
cap (gas cap). A poorly fitting cap could let impu-
rities into the fuel system. Also, a poorly fitting
aftermarket cap can cause the “Malfunction Indi-
cator Light (MIL)” to illuminate, due to fuel vapors
escaping from the system.
•A poorly fitting gas cap may cause the MIL to turn
on.
•To avoid fuel spillage and overfilling, do not “top
off” the fuel tank after filling.
Fuel Filler Cap
434 STARTING AND OPERATING