Jeep Cherokee 2009 Operating Information Manual page 152

cally and the Tire Pressure Monitoring Telltale
Light will turn OFF, as long as no tire pressure is
below the low-pressure warning limit in any of the
four active road tires. The vehicle may need to be
driven for up to 10 minutes above 15 mph (25
km/h) in order for the TPMS to receive this infor-
mation.
TPMS Deactivation and Reactivation
The TPMS can be deactivated if replacing all four
wheel and tire assemblies (road tires) with wheel
and tire assemblies that do not have TPMS Sen-
sors, such as when installing winter wheel and tire
assemblies on your vehicle.
To deactivate the TPMS, first, replace all four
wheel and tire assemblies (road tires) with those
not equipped with TPM Sensors. Then, drive the
vehicle for 10 minutes above 15 mph (25 km/h).
The TPMS will chime and the TPM Telltale Light
will flash on and off for 75 seconds and then
remain on solid. Upon the next ignition key cycle,
the TPMS will no longer chime or turn on the Tire
Pressure Monitoring Telltale Light.
To reactivate the TPMS, first, replace all four wheel
and tire assemblies (road tires) with those
equipped with TPM Sensors. Then, drive the ve-
hicle for up to 10 minutes above 15 mph (25
km/h). The TPMS will chime and the Tire Pressure
Monitoring Telltale Light will flash on and off for 75
seconds.
Premium System — If Equipped
The Tire Pressure Monitor System (TPMS) uses
wireless technology with wheel rim mounted elec-
tronic sensors to monitor tire pressure levels.
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 check the
tire pressure in all of the tires on your vehicle
monthly and to maintain the proper pressure.
The 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 Mes-
sages, which display in the Electronic Vehicle
Information Center (EVIC)
• Tire Pressure Monitoring Telltale Light
The matching full size spare wheel and tire as-
sembly (if equipped) has a tire pressure monitor-
ing 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 Infor-
mation Center (EVIC) will display a graphic show-
ing the pressure values of each tire with the low
tire pressure values flashing.
Should this occur, you should stop as soon as
possible, and inflate the tires with low pressure
(those flashing in the EVIC graphic) to the vehi-
cle's recommended cold placard pressure value.
Once the system receives the updated tire pres-
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