Jeep 2012 Liberty, Owner'S Manual

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Three Trigger Modules (mounted in three of the four
wheel-wells)
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Various Tire Pressure Monitoring System messages,
which display in the Electronic Vehicle Information
Center (EVIC)
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Tire Pressure Monitoring Telltale Light
The matching full size spare wheel and tire assembly (if
equipped) has a tire pressure monitoring sensor. The full
size spare can be used in place of any of the four road
tires. A spare with a pressure below the low-pressure
limit will not cause the “Tire Pressure Monitoring Telltale
Light” to illuminate or the chime to sound. However, it
will cause a “SPARE LOW PRESSURE” message to
display in the EVIC.
Tire Pressure Monitoring Low Pressure Warnings
The “Tire Pressure Monitoring Telltale Light” will
illuminate in the instrument cluster and a chime
will sound when tire pressure is low in one or more of the
four active road tires. In addition, the Electronic Vehicle
Information Center (EVIC) will display a “LOW TIRE
PRESSURE” message for a minimum of five seconds and
a graphic showing the pressure values of each tire with
the low tire pressure values flashing.
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