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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 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 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
265
2010 MKT (mkt)
Owners Guide, 3rd Printing
USA (fus)