2010 Mercury Mountaineer brake light

These are some of the symbols you may see on your vehicle.
Vehicle Symbol Glossary
Safety Alert
See Owner’s Guide
Fasten Safety BeltAirbag - Front
Airbag - SideChild Seat Lower
Anchor
Child Seat Tether
AnchorBrake System
Anti-Lock Brake SystemParking Brake System
Brake Fluid -
Non-Petroleum BasedParking Aid System
Stability Control SystemSpeed Control
Master Lighting SwitchHazard Warning Flasher
Fog Lamps-FrontFuse Compartment
Fuel Pump ResetWindshield Wash/Wipe
Windshield
Defrost/DemistRear Window
Defrost/Demist
Introduction
10
2010 Mountaineer(mnt)
Owners Guide(own2002), 1st Printing
USA(fus)

damage your catalytic converter. Drive in a moderate fashion (avoid
heavy acceleration and deceleration) and contact your authorized dealer
as soon as possible.
If the light remains on while driving, the temperature of the engine may
be too high; refer toEngine coolantin theMaintenance and
Specificationschapter.
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
indicator:Illuminates when a
powertrain or an 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, contact your authorized dealer as soon as possible. Illumination
after releasing the parking brake indicates low brake fluid level. Contact
your authorized dealer as soon as possible.
WARNING: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.
Contact your authorized dealer as soon as possible. Driving extended
distances with the parking brake engaged can cause brake failure and
the risk of personal injury.
P!
BRAKE
Instrument Cluster
13
2010 Mountaineer(mnt)
Owners Guide(own2002), 1st Printing
USA(fus)

Anti-lock brake system:If the
ABS light stays illuminated or
continues to flash, a malfunction has
been detected. Contact your
authorized dealer as soon as
possible. 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, contact your authorized
dealer as soon as possible. A chime will sound if there is a malfunction in
the indicator light.
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-Minderchime feature.
Charging system: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: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.
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.
ABS
Instrument Cluster
14
2010 Mountaineer(mnt)
Owners Guide(own2002), 1st Printing
USA(fus)

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.
Key-in-ignition warning chime:Sounds when the key is left in the
ignition in the off or ACCESSORY position and the driver’s door is
opened.
Headlamps on warning chime:Sounds when the headlamps or parking
lamps are on, the ignition is off (the key is not in the ignition) and the
driver’s door is opened.
Turn signal warning chime:Sounds when the turn signal lever has
been activated to signal a turn and not turned off after the vehicle is
driven more than 2 miles (3.2 km).
Parking brake on warning chime:Sounds when the parking brake is
set, the engine is running and the vehicle is driven more than 3 mph
(5 km/h).
Message center activation chime:Sounds when the following
warnings DOOR AJAR, LOW FUEL LEVEL or LOW TIRE PRESSURE
appear in the message center display for the first time.
Instrument Cluster
16
2010 Mountaineer(mnt)
Owners Guide(own2002), 1st Printing
USA(fus)

4. DOOR AJAR
5. EXTERIOR LAMP
6. BRAKE FLUID LEVEL
7. PARK BRAKE
8. FUEL LEVEL AND DISTANCE TO EMPTY
AWD AUTO / LOCKED (if equipped)
This feature disables/enables the AWD feature.
Press the RESET button to select the AUTO or LOCKED mode.
Note:When the AWD system is in the locked mode, the 4X4 indicator
will be illuminated.
UNITS
Displays the current units English or Metric.
Press the RESET button to change from English to Metric.
LANGUAGE ENGLISH / SPANISH / FRENCH / JAPANESE /
ARABIC
Note:When entering the SETUP MENU and a non-English language has
been selected, PRESS RESET FOR ENGLISH will be displayed to change
back to English.
Allows you to choose which language the message center will display in.
Selectable languages are English, Spanish, French, Japanese, or Arabic
Waiting four seconds or pressing the RESET button cycles the message
center through each of the language choices.
Press the RESET button to set the language choice.
AUTOLAMP
This feature keeps your headlights on for up to three minutes after the
ignition is switched off.
Press the RESET button to select the new Autolamp delay values of 0,
10, 20, 30, 60, 90, 120 or 180 seconds.
AUTOLOCK
This feature automatically locks all vehicle doors when the vehicle is
shifted into any gear, putting the vehicle in motion.
Press the RESET button to turn autolock on or off.
AUTOUNLOCK
This feature automatically unlocks all vehicle doors when the driver’s
door is opened within 10 minutes of the ignition being turned off.
Instrument Cluster
22
2010 Mountaineer(mnt)
Owners Guide(own2002), 1st Printing
USA(fus)

Function Number of bulbs Trade number
Park/turn lamps
(front)2
3157 A (amber)
Headlamps 2 H13
Rear stop/tail lamps 2 L1224R
Rear turn lamps 2 3157 A (amber)
Rear license plate
lamps2
168
Backup lamp 2 3156K
High-mount brake
lamps5
W5WL
Side mounted turn
signal2
WY5W (amber)
Front sidemarker 2 194
Rear sidemarker 2 194
Fog lamp 2 9145
Cargo lamp 1 211-2
Interior overhead lamp 1 912 (906)
Front door courtesy
lamp1
168
Map lamps 2 168 (T10)
Ashtray lamp 1 161
Visor vanity lamp -
Slide on rail system
(SOR)2
A6224PF
All replacement bulbs are clear in color except where noted.
To replace all instrument panel lights - see your authorized dealer.
Replacing interior bulbs
Check the operation of the bulbs frequently. To replace any of the
interior bulbs, see a dealer or qualified technician.
Replacing exterior bulbs
Check the operation of all the bulbs frequently.
Lights
102
2010 Mountaineer(mnt)
Owners Guide(own2002), 1st Printing
USA(fus)

Replacing side-mounted turn signal bulbs
1. Turn the headlamp switch off.
2. Carefully pry the lamp assembly
away from the fender.
3. Rotate the bulb socket
counterclockwise to remove it from
the lamp assembly.
4. Pull the bulb straight out.
Reverse steps to reinstall bulb(s).
Replacing front/rear side marker bulbs
1. Turn the headlamp switch off.
2. Reach under the bumper and
rotate the bulb socket
counterclockwise to remove it.
3. Pull the bulb straight out.
Reverse steps to reinstall bulb(s).
Replacing tail/brake/turn/backup lamp bulbs
1. Turn the headlamp switch off and
open the liftgate.
2. Remove the two bolts from the
lamp assembly.
3. Remove the lamp assembly by
pulling it away from the vehicle at
an angle to disengage the two snap
attachments.
Lights
105
2010 Mountaineer(mnt)
Owners Guide(own2002), 1st Printing
USA(fus)

4. Rotate the bulb socket
counterclockwise and remove it
from the lamp assembly.
5. Pull the bulb straight out of the
socket.
Note:Disconnect the LED brake
lamp from the electrical connector
and replace the LED assembly.
Reverse steps to reinstall bulb(s).
Replacing fog lamp bulbs
1. Make sure the headlamp switch is
off.
2. Remove the bulb socket from the
fog lamp by turning it
counterclockwise.
3. Disconnect the electrical
connector.
Reverse steps to reinstall bulb(s).
Replacing license plate lamp bulbs
1. Make sure the headlamp switch is
off.
2. Remove the lamp assembly by
depressing the small tab and rocking
the lamp assembly out.
3. Remove the bulb socket from the
lamp assembly by turning
counterclockwise and pull the bulb
straight out.
Reverse steps to reinstall bulb(s).
Lights
106
2010 Mountaineer(mnt)
Owners Guide(own2002), 1st Printing
USA(fus)