Jeep 2008 Commander, Owner'S Manual, Page: 341 / 493

NOTE: It is particularly important, for you to check the
tire pressure in all of your tires regularly and to maintain
the proper pressure.
The Tire Pressure Monitor System (TPMS) consists of the
following components:
•
Receiver Module
•
Four Tire Pressure Monitoring Sensors
•
Three Trigger Modules (mounted in three of the four
wheel wells)
•
Various Tire Pressure Monitoring System Messages,
which display in the Electronic Vehicle Information
Center (EVIC), and a graphic displaying tire pressures
•
Tire Pressure Monitoring Telltale Light
A tire pressure monitoring sensor is located in the spare
wheel if the vehicle is equipped with a matching full size
spare wheel and tire assembly. The matching full size
spare tire can be used in place of any of the four road
tires. A low spare tire will set the “SPARE LOW PRES-
SURE” message, but it will not cause the Tire Pressure
Monitoring Telltale Light to illuminate or the chime to
sound.
Tire Pressure Monitoring Low Pressure Warnings
The Tire Pressure Monitoring Telltale Light will
illuminate in the instrument cluster, and an au-
dible chime will be activated when one or more of
the four active road tire pressures are low. In addition, the
Electronic Vehicle Information Center (EVIC) will display
one or more Low Pressure messages (Left Front, Left
Rear, Right Front, Right Rear) for three seconds, and a
graphic display of the pressure value(s) with the low
tire(s) “flashing.” Refer to “Electronic Vehicle Informa-
tion Center (EVIC)” in Section 4 of this manual.
NOTE: Your system can be set to display pressure units
in PSI, kPa, or BAR.
340 STARTING AND OPERATING