2011 Mercury Mariner TPMS

Low tire pressure
warning lightPossible cause Customer action required
Flashing warning
lightSpare tire in use Your temporary spare tire is in
use. Repair the damaged road
wheel and re-mount it on the
vehicle to restore system
functionality. For a description
of how the system functions
under these conditions, refer to
When your temporary spare
tire is installedin this section.
TPMS
malfunctionIf your tires are properly
inflated and your spare tire is
not in use and the TPMS
warning light still flashes,
contact your authorized dealer
as soon as possible.
When inflating your tires
When putting air into your tires (such as at a gas station or in your
garage), the tire pressure monitoring system may not respond
immediately to the air added to your tires.
It may take up to two minutes of driving over 20 mph (32 km/h) for the
light to turn off after you have filled your tires to the recommended
inflation pressure.
How temperature affects your tire pressure
The tire pressure monitoring system (TPMS) monitors tire pressure in
each pneumatic tire. While driving in a normal manner, a typical
passenger tire inflation pressure may increase approximately 2 to 4 psi
(14 to 28 kPa) from a cold start situation. If the vehicle is stationary
over night with the outside temperature significantly lower than the
daytime temperature, the tire pressure may decrease approximately 3 psi
(21 kPa) for a drop of 30°F (17°C) in ambient temperature. This lower
pressure value may be detected by the TPMS as being significantly lower
than the recommended inflation pressure and activate the TPMS warning
for low tire pressure. If the low tire pressure warning light is on, visually
check each tire to verify that no tire is flat. (If one or more tires are flat,
repair as necessary.) Check air pressure in the road tires. If any tire is
Tires, Wheels and Loading
191
2011 Mariner(mrn)
Owners Guide, 1st Printing
USA(fus)

Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
31F — Liftgate latch relay
32 — Not used
33 — PCM diode
34 — Start diode
35 10A* Run/start, Reverse lamps, Rear
defrost relay
36 — Not used
* Mini fuse ** Cartridge fuse
CHANGING THE TIRES
If you get a flat tire while driving, do not apply the brake heavily.
Instead, gradually decrease your speed. Hold the steering wheel firmly
and slowly move to a safe place on the side of the road.
Note:The tire pressure monitoring system (TPMS) indicator light will
illuminate when the spare tire is in use. To restore the full functionality
of the monitoring system, all road wheels equipped with tire pressure
monitoring sensors must be mounted on the vehicle.
Have a flat serviced by an authorized dealer in order to prevent damage
to the TPMS sensors, refer toTire pressure monitoring system
(TPMS)in theTires, Wheels and Loadingchapter. Replace the spare
tire with a road tire as soon as possible. During repairing or replacing of
the flat tire, have the authorized dealer inspect the TPMS sensor for
damage.
WARNING:The use of tire sealants may damage your tire
pressure monitoring system (TPMS) and should not be used.
However, if you must use a sealant, the TPMS sensor and valve stem
on the wheel must be replaced by an authorized Ford dealer.
WARNING:Refer toTire pressure monitoring system (TPMS)
in theTires, Wheels and Loadingchapter for important
information. If the tire pressure monitor sensor becomes damaged, it
will no longer function.
Roadside Emergencies
251
2011 Mariner(mrn)
Owners Guide, 1st Printing
USA(fus)

What Maintenance Schedule
Should You Follow? ................336
Seats ..........................................109
child safety seats ....................156
cleaning ...................................282
heated ......................................114
SecuriCode keyless entry
system ........................................103
SecuriLock passive anti-theft
system ........................................105
Servicing your vehicle ..............284
Setting the clock .........................26
Snowplowing .................................6
SOS Post Crash Alert ...............151
Spark plugs,
specifications .....................320, 324
Special notice
ambulance conversions ..............6
utility-type vehicles ....................6
Specification chart,
lubricants ...................................321
Speed control ..............................73
Starting a flex fuel vehicle .......209
Starting your
vehicle ........................206–207, 209
jump starting ..........................263
Steering wheel
controls ......................................75
tilting .........................................64
Stereo
CD-MP3 .....................................26
SYNC..........................................43
T
Tilt steering wheel ......................64Tire Pressure Monitoring
System (TPMS)
Tires, Wheels and Loading ....187
Tires ...........................171–173, 251
alignment ................................180
care ..........................................176
changing ..................251, 254, 256
checking the pressure ............176
inflating ...................................174
label .........................................186
replacing
..................................177
rotating
....................................180
safety practices
.......................179
sidewall information
...............181
snow tires and chains
............192
spare tire
.........................252, 254
terminology
.............................173
tire grades
...............................172
treadwear
........................172, 176
Towing
.......................................200
recreational towing
.................204
trailer towing
..........................200
wrecker
....................................266
Transmission
.............................222
brake-shift interlock (BSI)
....221
fluid, checking and adding
(automatic)
.............................314
fluid, refill capacities
..............321
lubricant specifications
..........321
Trunk
...........................................86
Turn signal
..................................55
U
Universal garage door opener
....77
USB port
......................................36
Index
361
2011 Mariner(mrn)
Owners Guide, 1st Printing
USA(fus)