Low tire
pressure
warning
light
Possible
cause
Customer action required
Flashing
warning light
Spare 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 installed
in
this section.
TPMS
malfunction
If 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
overnight 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
light 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 under-inflated, carefully drive the vehicle to the nearest location
where air can be added to the tires. Inflate all the tires to the
recommended inflation pressure.
Tires, Wheels and Loading
209
2011 MKZ Hybrid
(hkz)
Owners Guide, 2nd Printing
USA
(fus)
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