Base System - Jeep Grand Cherokee Owner's Manual

NOTE:
• The TPMS is not intended to replace nor-
mal tire care and maintenance, or to pro-
vide warning of a tire failure or condition.
• The TPMS should not be used as a tire
pressure gauge while adjusting your tire
pressure.
• Driving on a significantly under-inflated
tire causes the tire to overheat and can
lead to tire failure. Under-inflation also
reduces fuel efficiency and tire tread life,
and may affect the vehicle's handling and
stopping ability.
• The TPMS is not a substitute for proper
tire maintenance, and it is the driver's
responsibility to maintain correct tire
pressure using an accurate tire gauge,
even if under-inflation has not reached
the level to trigger the display of the
"TIRE LOW PRESSURE" message.
• Seasonal temperature changes will affect
tire pressure, and the TPMS will monitor
the actual tire pressure in the tire.
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Base System

The Tire Pressure Monitor System (TPMS) uses
wireless technology with wheel rim-mounted
electronic sensors to monitor tire pressure lev-
els. Sensors, mounted to each wheel as part of
the valve stem, transmit tire pressure readings
to the Receiver Module.
NOTE:
It is particularly important, for you to regu-
larly check the tire pressure in all of your
tires, and to maintain the proper pressure.
The TPMS consists of the following compo-
nents:
• Receiver Module
• Four Tire Pressure Monitoring Sensors
• Various Tire Pressure Monitoring System
Messages, which display in the Electronic
Vehicle Information Center (EVIC)
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 as-
sembly. The matching full-size spare tire can be
used in place of any of the four road tires. A low
spare tire will not cause the TIRE LOW PRES-
SURE message to display or the chime to
sound.
TIRE LOW PRESSURE Warning
A TIRE LOW PRESSURE message will display
in the instrument cluster, and an audible chime
will be activated, when one or more of the four
active road tire pressures are low. Should this
occur, you should stop as soon as possible,
check the inflation pressure of each tire on your
vehicle, and inflate each tire to the vehicle's
recommended cold placard pressure value.
The system will automatically update and the
TIRE LOW PRESSURE message will no longer
display, once the updated tire pressures have
been received. The vehicle may need to be
driven for up to 20 minutes above 15 mph
(24 km/h) to receive this information.
CHECK TPM SYSTEM Warning
The CHECK TPM SYSTEM message will be
displayed when a system fault is detected. The
system fault will also sound a chime. If the
ignition switch is cycled, this sequence will
repeat, providing the system fault still exists.
The CHECK TPM SYSTEM message will no