2008 Mercury Mountaineer check engine light

WARNING LIGHTS AND CHIMES
Warning lights and gauges can alert you to a vehicle condition that may
become serious enough to cause expensive repairs. A warning light may
illuminate when a problem exists with one of your vehicle’s functions.
Many lights will illuminate when you start your vehicle to make sure the
bulb works. If any light remains on after starting the vehicle, refer to the
respective system warning light for additional information.
Note:Some warning lights will display in the message center as words
and function the same as the warning light.
Note:Depending on which options your vehicle has, some indicators
may not be present in your vehicle.
Service engine soon:TheService
engine soonindicator light
illuminates when the ignition is first
turned to the ON position to check
the bulb and to indicate whether the vehicle is ready for
Inspection/Maintenance (I/M) testing. Normally, theService engine soon
light will stay on until the engine is cranked, then turn itself off if no
malfunctions are present. However, if after 15 seconds theService
engine soonlight blinks eight times, it means that the vehicle is not
ready for I/M testing. See theReadiness for Inspection/Maintenance
(I/M) testingin theMaintenance and Specificationschapter.
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Solid illumination after the engine is started indicates the On Board
Diagnostics System (OBD-II) has detected a malfunction. Refer toOn
board diagnostics (OBD-II)in theMaintenance and Specifications
chapter. If the light is blinking, engine misfire is occurring which could
damage your catalytic converter. Drive in a moderate fashion (avoid
heavy acceleration and deceleration) and have your vehicle serviced
immediately by your authorized dealer.
If the light remains ON while driving, the temperature of the engine may
be too high, refer toEngine coolantin theMaintenance and
Specificationschapter.
Under engine misfire conditions, excessive exhaust temperatures
could damage the catalytic converter, the fuel system, interior
floor coverings or other vehicle components, possibly causing a fire.
Powertrain malfunction
indicator:Illuminates when a
powertrain or a AWD fault has been
detected. Contact your authorized
dealer as soon as possible.
Brake system warning light:To
confirm the brake system warning
light is functional, it will
momentarily illuminate when the
ignition is turned to the ON position
when the engine is not running, or in a position between ON and START,
or by applying the parking brake when the ignition is turned to the ON
position. If the brake system warning light does not illuminate at this
time, seek service immediately from your authorized dealer. Illumination
after releasing the parking brake indicates low brake fluid level and the
brake system should be inspected immediately by your authorized dealer.
Driving a vehicle with the brake system warning light on is
dangerous. A significant decrease in braking performance may
occur. It will take you longer to stop the vehicle. Have the vehicle
checked by your authorized dealer. Driving extended distances with
the parking brake engaged can cause brake failure and the risk of
personal injury.
P!
BRAKE
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Anti-lock brake system:If the
ABS light stays illuminated or
continues to flash, a malfunction has
been detected, have the system
serviced immediately by your
authorized dealer. Normal braking is still functional unless the brake
warning light also is illuminated.
Airbag readiness:If this light fails
to illuminate when the ignition is
turned to ON, continues to flash or
remains on, have the system
serviced immediately by your authorized dealer. A chime will also sound
when a malfunction in the supplemental restraint system has been
detected.
Safety belt:Reminds you to fasten
your safety belt. A Belt-Minder

chime will also sound to remind you
to fasten your safety belt. Refer to
theSeating and Safety Restraints
chapter to activate/deactivate the Belt-Minder
chime feature.
Charging system:Illuminates when
the battery is not charging properly.
Engine oil pressure:Illuminates
when the oil pressure falls below the
normal range. Check the oil level
and add oil if needed. Refer to
Engine oilin theMaintenance and Specificationschapter.
If the light remains ON while driving, the temperature of the engine may
be too high, refer toEngine coolantin theMaintenance and
Specificationschapter.
ABS
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Engine coolant temperature:
Illuminates when the engine coolant
temperature is high. Stop the
vehicle as soon as possible, switch
off the engine and let cool. Refer to
Engine coolantin the
Maintenance and Specifications
chapter.
Never remove the coolant reservoir cap while the engine is
running or hot.
Low tire pressure warning:
Illuminates when your tire pressure
is low. If the light remains on at
start up or while driving, the tire
pressure should be checked. Refer
toInflating your tiresin theTires, Wheels and Loadingchapter. When
the ignition is first turned to ON, the light will illuminate for 3 seconds to
ensure the bulb is working. If the light does not turn ON, have the
system inspected by your authorized dealer. For more information on
this system, refer toUnderstanding your Tire Pressure Monitoring
Systemin theTires, Wheels and Loadingchapter.
Check fuel cap:Illuminates when
the fuel cap may not be properly
installed. Continued driving with
this light on may cause the Service
engine soon warning light to come
on. Refer toFuel filler capin the
Maintenance and Specifications
chapter.
Speed control:Illuminates when
the speed control is activated. Turns
off when the speed control system
is deactivated.
O/D off:Illuminates when the
overdrive function of the
transmission has been turned off,
refer to theDrivingchapter.
O/D
OFF
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AdvanceTrac
:Flashes when the
AdvanceTrac
with RSC system is
active. Illuminates solid when the
system has been disabled (by the
driver or as a result of a system
failure), refer to theDriving
chapter for more information.
If “SERVICE RSC NOW” is displayed in the message center, refer to
Message centerin theDriver Controlschapter for more information.
All wheel drive (AWD) (4.6 L
engine vehicles only):Illuminates
when AWD is engaged. If the light
fails to illuminate when the ignition is turned ON, or remains on, have
the system serviced immediately by your authorized dealer.
Door ajar:Illuminates when the
ignition is in the ON position and
any door, liftgate or the liftgate glass
is open.
Low fuel:Illuminates when the fuel
level in the fuel tank is at or near
empty (refer toFuel gaugein this
chapter).
Low washer fluid:Illuminates
when the windshield washer fluid is
low.
Turn signal:Illuminates when the
left or right turn signal or the
hazard lights are turned on. If the
indicators stay on or flash faster, check for a burned out bulb.
High beams:Illuminates when the
high beam headlamps are turned on.
4x4
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fuse may have blown. Refer toFuses and relaysin theRoadside
Emergencieschapter for information on checking and replacing fuses.
To have full capacity usage of your power point, the engine is required to
be running (in a safe manner) to avoid unintentional discharge of the
battery. To prevent the battery from being discharged:
•do not use the power point longer than necessary when the engine is
not running,
•do not leave battery chargers, video game adapters, computers and
other devices plugged in overnight or when the vehicle is parked for
extended periods.
Always keep the power point caps closed when not being used.
Cigar/Cigarette lighter (if equipped)
Do not plug optional electrical accessories into the cigarette lighter socket.
Do not hold the lighter in with your hand while it is heating, this will
damage the lighter element and socket. The lighter will be released from
its heating position when it is ready to be used.
Improper use of the lighter can cause damage not covered by your warranty.
POWER WINDOWS
Do not leave children unattended in the vehicle and do not let
children play with the power windows. They may seriously injure
themselves.
When closing the power windows, you should verify they are free
of obstructions and ensure that children and/or pets are not in
the proximity of the window openings.
Press and pull the window switches
to open and close windows.
•Push down (to the first detent)
and hold the switch to open.
•Pull up (to the first detent) and
hold the switch to close.
Rear Window Buffeting:When one or both of the rear windows are open,
the vehicle may demonstrate a wind throb or buffeting noise. This noise can
be alleviated by lowering a front window approximately two to three inches.
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electrical loads as soon as possible. If the warning stays on or comes on
when the engine is operating at normal speeds, have the electrical
system checked as soon as possible.
FUEL LEVEL LOW.Displayed as an early reminder of a low fuel
condition.
PARK BRAKE ENGAGED.Displayed when the manual park brake is
set, the engine is running and the vehicle is driven more than 3 mph (5
km/h). If the warning stays on after the park brake is released, contact
your authorized dealer as soon as possible.
CHECK BRAKE SYSTEM.Displayed when the braking system is not
operating properly. If the warning stays on or continues to come on,
contact your authorized dealer as soon as possible.
CHECK PARK AID (if equipped).Displayed when the transmission is
in R (Reverse) and the Reverse Sensing System (Park Aid) is disabled.
Refer toReverse Sensing System (Park Aid)in this section to enable.
LOW TIRE PRESSURE.Displayed when one or more tires on your
vehicle have low tire pressure. Refer toInflating your tiresin theTires,
Wheels and Loadingchapter.
TIRE MONITOR FAULT.Displayed when the Tire Pressure Monitoring
System is malfunctioning. If the warning stays on or continues to come
on, have the system inspected by your authorized dealer.
TIRE SENSOR FAULT.Displayed when a tire pressure sensor is
malfunctioning, or your spare tire is in use. For more information on how
the system operates under these conditions, refer toUnderstanding
your Tire Pressure Monitoring Systemin theTires, Wheels and
Loadingchapter. If the warning stays on or continues to come on, have
the system inspected by your authorized dealer.
BRAKE FLUID LEVEL LOW.Indicates the brake fluid level is low and
the brake system should be inspected immediately. Refer toBrake fluid
reservoirin theMaintenance and Specificationschapter.
CHECK HEADLAMP.Displayed when the headlamps are activated and
at least one bulb is burned out. Check the lamps as soon as possible and
have the burned out lamp replaced. Refer toReplacing headlamp bulbs
in theLightschapter.
CHECK HIGHBEAM LAMP.Displayed when the highbeam lamps are
activated and at least one bulb is burned out. Check the lamps as soon
as possible and have the burned out lamp replaced. Refer toReplacing
headlamp bulbsin theLightschapter.
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CHECK TURN LAMP.Displayed when the turn lamps are activated and
at least one bulb is burned out. Check the lamps as soon as possible and
have the burned out lamp replaced. Refer toReplacing headlamp bulbs
in theLightschapter.
WASHER FLUID LEVEL LOW.Indicates the washer fluid reservoir is
less than one quarter full. Check the washer fluid level. Refer to
Windshield washer fluidin theMaintenance and Specifications
chapter.
OIL CHANGE REQUIRED.Displayed when the engine oil life
remaining is 0%.
An oil change is required whenever indicated by the message center and
according to the recommended maintenance schedule. USE ONLY
RECOMMENDED ENGINE OILS.
ENGINE OIL CHANGE SOON.Displayed when the engine oil life
reaches 5% or less of the Oil Life Start Value.
LIFTGATE/GLASS AJAR.Displayed when the liftgate or the liftgate
glass is not completely closed.
FOR 4X4 LOW STOP VEHICLE (if equipped).Displayed when 4X4
LOW is selected while the vehicle is moving. For more information, refer
toControl trac four-wheel drive (4x4) operationin theDriving
chapter.
FOR 4X4 LOW SHIFT TO N (if equipped).Displayed when 4X4 LOW
is selected and the vehicle is stopped. For more information, refer to
Control trac four-wheel drive (4x4) operationin theDrivingchapter.
TO EXIT 4X4 LOW STOP VEHICLE (if equipped).Displayed when
2WD is selected while the vehicle is operating in 4X4 LOW. For more
information, refer toControl trac four-wheel drive (4x4) operationin
theDrivingchapter.
TO EXIT 4X4 LOW SHIFT TO N (if equipped).Displayed when 2WD
is selected while the vehicle has been stopped in 4X4 LOW. For more
information, refer toControl trac four-wheel drive (4x4) operationin
theDrivingchapter.
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