2012 JEEP GRAND CHEROKEE fuel pump

18. Fuel Door ReminderThe fuel pump symbol points to the side of the
vehicle where the fuel door is located.
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.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 293

Reformulated Gasoline
Many areas of the country require the use of cleaner
burning gasoline referred to as “Reformulated Gasoline.”
Reformulated gasoline contains oxygenates and are spe-
cifically blended to reduce vehicle emissions and im-
prove air quality.
The manufacturer supports the use of reformulated gaso-
line. Properly blended reformulated gasoline will pro-
vide excellent performance and durability of engine and
fuel system components.
Gasoline/Oxygenate Blends
Some fuel suppliers blend unleaded gasoline with oxy-
genates such as Ethanol. Fuels blended with oxygenates
may be used in your vehicle.
CAUTION!
DO NOT use gasoline containing Methanol or gaso-
line containing more than 10% Ethanol. Use of these
blends may result in starting and driveability prob-
lems, damage critical fuel system components, cause
emissions to exceed the applicable standard, and/or
cause the “Malfunction Indicator Light” to illumi-
nate. Pump labels should clearly communicate if a
fuel contains greater than 10% Ethanol.
Problems that result from using gasoline containing
Methanol or gasoline containing more than 10% Ethanol
are not the responsibility of the manufacturer and may
not be covered under warranty.
E-85 Usage In Non-Flex Fuel Vehicles
Non-FFV vehicles are compatible with gasoline contain-
ing 10% ethanol (E10). Gasoline with higher ethanol
content may void the vehicle’s warranty.
510 STARTING AND OPERATING

If a Non-FFV vehicle is inadvertently fueled with E-85
fuel, the engine will have some or all of these symptoms:
•operate in a lean mode
•OBD II “Malfunction Indicator Light” on
•poor engine performance
•poor cold start and cold driveability
•increased risk for fuel system component corrosion
To fix a Non-FFV vehicle inadvertently fueled once with
E-85 perform the following:
•change the engine oil and oil filter
•disconnect and reconnect the battery
•drain the fuel tank (see your authorized dealer)
More extensive repairs will be required for prolonged
exposure to E-85 fuel.
MMT In Gasoline
MMT is a manganese-containing metallic additive that is
blended into some gasoline to increase octane. Gasoline
blended with MMT provides no performance advantage
beyond gasoline of the same octane number without
MMT. Gasoline blended with MMT reduces spark plug
life and reduces emissions system performance in some
vehicles. The manufacturer recommends that gasoline
without MMT be used in your vehicle. The MMT content
of gasoline may not be indicated on the gasoline pump,
therefore, you should ask your gasoline retailer whether
the gasoline contains MMT. It is even more important to
look for gasoline without MMT in Canada, because MMT
can be used at levels higher than those allowed in the
United States. MMT is prohibited in Federal and Califor-
nia reformulated gasoline.
5
STARTING AND OPERATING 511

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.
WARNING!
•Never have any smoking materials lit in or near
the vehicle when the gas cap is removed or the
tank is being filled.
•Never add fuel when the engine is running. This is
in violation of most state and federal fire regula-
tions and may cause the malfunction indicator
light to turn on.
•A fire may result if gasoline is pumped into a
portable container that is inside of a vehicle. You
could be burned. Always place gas containers on
the ground while filling.
NOTE:
•When the fuel nozzle “clicks” or shuts off, the fuel
tank is full.
5
STARTING AND OPERATING 519

Cavity CartridgeFuseMini
Fuse Description
M21 20 Amp
Yellow Automatic
Shutdown 3
M22 10 Amp
Red Horns (Low/High)
– Right
M23 10 Amp
Red Horns (Low/High)
– Left
M24 25 Amp
Natural Rear Wiper
M25 20 Amp
Yellow Fuel Pump Motor
Output/Diesel Lift
Pump (Export
Only)
M26 10 Amp
Red Driver Door Switch
BankCavity Cartridge
FuseMini
Fuse Description
M27 10 Amp
Red Ignition Switch/
Wireless Control
Module/Keyless
Entry Module
M28 15 Amp
Blue Powertrain
Controller/
Transmission
Controller
M29 10 Amp
Red Tire Pressure Moni-
tor – If Equipped
M30 15 Amp
Blue J1962 Diag
Connector
M31 20 Amp
Yellow Backup Lamps
M32 10 Amp
Red Occupant Restraint
Controller
614 MAINTAINING YOUR VEHICLE