check engine light FORD EXPLORER 2012 5.G Owners Manual

Many lights will illuminate when you start your vehicle to make sure the
indicators work. If any light remains on after starting the vehicle, refer to
the respective system warning light for additional information.
Note:Some warning lights are reconfigurable telltale (RTT) indicators.
These indicators display in the lower line of the message center near the
odometer reading. They function the same as a warning light but do not
display on startup.
Service engine soon:The service
engine soon indicator 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, the service 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 the service engine
soon light 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.
Solid illumination after the engine is started indicates the on-board
diagnostics system (OBD-II) has detected a malfunction. Refer to
On-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 contact your authorized dealer
as soon as possible.
WARNING: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/reduced
power (RTT):Illuminates when a
powertrain or an 4WD fault has
been detected. Contact your
authorized dealer as soon as possible.
Instrument Cluster
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Charging system (RTT):
Illuminates when the battery is not
charging properly. If it stays on
while the engine is running, there
may be a malfunction with the charging system. Contact your authorized
dealer as soon as possible. This indicates a problem with the electrical
system or a related component.
Engine oil pressure (RTT):
Illuminates when the oil pressure
falls below the normal range, refer
toEngine oilin theMaintenance
and Specificationschapter.
AdvanceTrac:Displays when the
AdvanceTrac/Traction control is
active. If the light remains on, have
the system serviced immediately,
refer to theDrivingchapter for more information.
AdvanceTracoff light:
Illuminates when
AdvanceTrac/Traction control has
been disabled by the driver. Refer to
theDrivingchapter for more
information.
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 that it is working. If the light does not turn on or begins to flash,
contact your authorized dealer as soon as possible. For more information
on this system, refer toTire pressure monitoring system (TPMS)in
theTires, Wheels and Loadingchapter.
Low fuel (RTT):Illuminates when
the fuel level in the fuel tank is at
or near empty. Refer toFuel gauge
in this chapter.
OFF
Instrument Cluster
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4WD Messages Action / Description
4WD OFFDisplayed when the AWD system has been
automatically disabled to protect itself. This is
caused by operating the vehicle with the
compact spare tire installed or if the system is
overheating. The AWD system will resume
normal function and clear this message after
driving a short distance with the road tire
re-installed or after the system is allowed to
cool.
CHECK 4WDDisplayed in conjunction with the Throttle
Control/Transmission/AWD
light when
the AWD system is not operating properly. If
the warning stays on or continues to come on,
contact your authorized dealer as soon as
possible.
Battery and
Charging System
MessagesAction / Description
CHECK CHARGING
SYSTEMDisplayed when the charging system needs
servicing. If the warning stays on or continues
to come on, contact your authorized dealer as
soon as possible.
TURN POWER OFF
TO SAVE BATTERYDisplayed when the battery management
system determines that:
•the battery is at a low state of charge or,
•the ignition has been in accessory position
or on position with the engine off for
approximately 45 minutes.
Turn the ignition off as soon as possible to
protect the battery. This message will clear
once the vehicle has been started and the
battery state of charge has recovered. Turning
off unnecessary electrical loads will allow
faster battery state-of-charge recovery.
Instrument Cluster
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•Inside the utility compartment
•On the rear of the console, accessible from the rear seats
•In the cargo area
Do not use the power point for operating the cigarette lighter element (if
equipped).
Note:Do not plug optional electrical accessories into the cigarette
lighter socket (if equipped). Improper use of the lighter can cause
damage not covered by your warranty, and can result in fire or serious
injury.
To prevent the fuse from being blown, do not use the power point(s)
over the vehicle capacity of 12V DC/180W. If the power point or cigar
lighter socket is not working, a 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 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.
Power point (110V AC) (if equipped)
The 110V AC power point outlet is used for powering electrical devices
that require up to 150W. Exceeding the 150W limit will cause the power
point to cut off the power temporarily to provide overload protection.
Note:The 110V AC power point is
equipped with a cap which provides
protection from inserting objects
into the socket. The cap should
always be in a closed position
whenever the power point outlet is
not in use.
The 110V AC power point is located
on the back of the center console.
AC 110V
150W
Driver Controls
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WARNING:If a failure has been detected within the
AdvanceTracwith RSCsystem, the stability control light and
stability control off light will illuminate steadily. Verify that the
AdvanceTracwith RSCsystem is not manually disabled. Select
traction control off in the message center. If the stability control and
stability control off lights still illuminate steadily, have the system
serviced by an authorized dealer immediately. Operating your vehicle
with AdvanceTracwith RSCdisabled could lead to an increased risk
of loss of vehicle control, vehicle rollover, personal injury and death.
The AdvanceTracwith RSCsystem automatically enables each time
the engine is started. All features of the AdvanceTracwith RSCsystem
(TCS, ESC, RSCand Curve Control) are active and monitor the vehicle
from start-up. However, the system will only intervene if the driving
situation requires it.
The AdvanceTracwith RSC
system includes a traction control
off selection in the message center.
The stability control light and
stability control off light in the instrument cluster will illuminate
temporarily during start-up as part of a normal system self-check, or
during driving if a driving situation causes the AdvanceTracwith RSC
system to operate. If the stability control light and stability control off
light remain steadily illuminated, have the system serviced by an
authorized dealer immediately. The message center will also indicate a
failure with the brake system.
When AdvanceTracwith RSCperforms a normal system self-check,
some drivers may notice a slight movement of the brake, and/or a
rumble, grunting, or grinding noise after startup and when driving off.
When an event occurs that activates AdvanceTracwith RSCyou may
experience the following:
•A deceleration of the vehicle
•The stability control light will flash.
•A vibration in the pedal when your foot is on the brake pedal
•If the driving condition is severe and your foot is not on the brake, the
brake pedal may move as the systems applies higher brake forces. You
may also hear a whoosh of air from under the instrument panel during
this severe condition.
•The brake pedal may feel stiffer than usual.
•Engine power may be reduced.
Driving
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•At speeds above 20 mph (32 km/h): When the HDC button is pressed,
the HDC system will be enabled, the light on the button will be
illuminated, and FOR HILL CNTRL, 20 MPH OR LESS will be
displayed in the message center for several seconds.
•For HDC to enable, the vehicle must be in a drive gear or (R)
Reverse. If the vehicle is in P (Park) or N (Neutral) and the HDC
button is pressed, FOR HILL CNTRL, SELECT GEAR will be displayed
in the message center for several seconds.
Refer toMessage centerin theInstrument Clusterchapter for hill
descent control messages.
STEERING
Your vehicle is equipped with an electric power-assisted steering (EPAS)
system. There is no fluid reservoir to check or fill.
If your vehicle loses electrical power while you are driving (or if the
ignition is turned off), you can steer the vehicle manually, but it takes
more effort. Extreme continuous steering may increase the effort it takes
for you to steer. This occurs to prevent overheating and permanent
damage to your steering system. If this should occur, you will neither
lose the ability to steer the vehicle manually nor will it cause permanent
damage. Typical steering and driving maneuvers will allow the system to
cool and steering assist will return to normal.
The EPS system has diagnostic checks that continuously monitor the
EPS system to ensure proper operation. When a system error is
detected, the following message SERVICE POWER STEERING, SERVICE
POWER STEERING NOW or POWER STEERING ASSIST FAULT may
display in the message center. Refer to theMessage centerin the
Instrument Clusterchapter for more information.
WARNING:The EPS system has diagnostics checks that
continuously monitor the EPS system to ensure proper operation
of the electronic system. When an electronic error is detected, the
message POWER STEERING ASSIST FAULT will be displayed in the
message center. If this happens, stop the vehicle in a safe place, and
turn off the engine. After at least 10 seconds, reset the system by
restarting the engine, and watch the message center for POWER
STEERING ASSIST FAULT. If the message returns, or returns while
driving, take the vehicle to your dealer to have it checked. With the
message displayed, the steering assist is turned off, making the vehicle
harder to steer.
Driving
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WARNING:To reduce the risk of collision and injury, be
prepared that the vehicle speed may reduce and the vehicle may
not be able to accelerate with full power until the fluid temperatures
reduce.
The air conditioning may also cycle on and off during severe operating
conditions to protect overheating of the engine. When the engine coolant
temperature decreases to a more normal operating temperature, the air
conditioning will turn on once again.
If you notice any of the following:
•the engine coolant temperature gauge moves fully into the red (hot)
area
•the coolant temperature warning light illuminates
•the service engine soon indicator illuminates
1. Pull off the road as soon as safely possible and place the vehicle in P
(Park).
2. Leave the engine running until the coolant temperature gauge needle
moves away from the H range. After several minutes, if this does not
happen, follow the remaining steps.
3. Turn the engine off and wait for it to cool before checking the coolant
level.
WARNING:Never remove the coolant reservoir cap while the
engine is running or hot.
4. If the coolant level is normal, you may restart your engine and
continue on.
5. If the coolant is low, add coolant, restart the engine and take your
vehicle to an authorized dealer. SeeAdding engine coolantin this
chapter for more information.
Refer to fail-safe cooling for additional information.
What you should know about fail-safe cooling
If the engine coolant supply is depleted, this feature allows the vehicle to
be driven temporarily before incremental component damage is incurred.
The “fail-safe” distance depends on ambient temperatures, vehicle load
and terrain.
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How fail-safe cooling works
If the engine begins to overheat:
•The engine coolant temperature gauge will move to the red (hot)
area.
•The coolant temperature warning light
will illuminate.
•The service engine soon
indicator will illuminate.
If the engine reaches a preset over-temperature condition, the engine
will automatically switch to alternating cylinder operation. Each disabled
cylinder acts as an air pump and cools the engine.
When this occurs the vehicle will still operate. However:
•The engine power will be limited.
•The air conditioning system will be disabled.
Continued operation will increase the engine temperature and the engine
will completely shut down, causing steering and braking effort to
increase.
Once the engine temperature cools, the engine can be re-started. Take
your vehicle to an authorized dealer as soon as possible to minimize
engine damage.
When fail-safe mode is activated
You have limited engine power when in the fail-safe mode, so drive the
vehicle with caution. The vehicle will not be able to maintain high-speed
operation and the engine will run rough. Remember that the engine is
capable of completely shutting down automatically to prevent engine
damage, therefore:
1. Pull off the road as soon as safely possible and turn off the engine.
2. Arrange for the vehicle to be taken to an authorized dealer.
3. If this is not possible, wait a short period for the engine to cool.
4. Check the coolant level and replenish if low.
WARNING:Fail-safe mode is for use during emergencies only.
Operate the vehicle in fail-safe mode only as long as necessary to
bring the vehicle to rest in a safe location and seek immediate repairs.
When in fail-safe mode, the vehicle will have limited power, will not be
able to maintain high-speed operation, and may completely shut down
without warning, potentially losing engine power, power steering assist,
and power brake assist, which may increase the possibility of a crash
resulting in serious injury.
Maintenance and Specifications
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•Lubricate all hood, door and trunk lid hinges, and latches with a light
grade oil. See theCleaningchapter for more information.
•Cover interior trim to prevent fading.
•Keep all rubber parts free from oil and solvents.
Engine
•The engine oil and filter should be changed prior to storage, as used
engine oil contain contaminates that may cause engine damage.
•Start the engine every 15 days. Run at fast idle until it reaches normal
operating temperature.
•With your foot on the brake, shift through all the gears while the
engine is running.
Fuel system
•Fill the fuel tank with high-quality fuel until the first automatic shutoff
of the fuel pump nozzle.
Note:During extended periods of vehicle storage (30 days or more),
fuel may deteriorate due to oxidation. Add a quality gas stabilizer
product to the vehicle fuel system whenever actual or expected storage
periods exceed 30 days. Follow the instructions on the additive label.
The vehicle should then be operated at idle speed to circulate the
additive throughout the fuel system.
Cooling system
•Protect against freezing temperatures.
•When removing vehicle from storage, check coolant fluid level.
Confirm there are no cooling system leaks, and fluid is at the
recommended level.
Battery
•Check and recharge as necessary. Keep connections clean.
•If storing your vehicle for more than 30 days without recharging the
battery, it may be advisable to disconnect the battery cables to ensure
battery charge is maintained for quick starting.
Note:If battery cables are disconnected, it will be necessary to reset
memory features.
Maintenance and Specifications
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Engine oil/coolant change intervals
Engine oilAs indicated by the message center: do not
exceed one year or 10,000 miles (16,000 km)
Engine coolant,
initial change6 years or 100,000 miles (160,000 km)
(whichever comes first)
Engine coolant, after
initial changeEvery 3 years or 50,000 miles (80,000 km)
Check every month
Engine oil level
Function of all interior and exterior lights
Tires for wear and proper pressure, including spare
Windshield washer fluid level
Check every six months
Battery connections; clean if necessary
Body and door drain holes for obstructions; clean if necessary
Cooling system fluid level and coolant strength
Door weatherstrips for wear; lubricate if necessary
Hinges/latches/outside locks for proper operation; lubricate if necessary
Parking brake for proper operation
Safety belts and seat latches for wear and function
Safety warning lamps (brake, ABS, airbag, safety belt) for operation
Washer spray/wiper operation; clean or replace blades as necessary
Scheduled Maintenance
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