Jeep GRAND CHEROKEE 2022 Owner's Manual page 264

262 SAFETY
NOTE:
It is particularly important for you to regularly check
the tire pressure in all of your tires and to maintain
the proper pressure.
The Tire Pressure Monitoring System (TPMS)
consists of the following components:
Receiver module

Four Tire Pressure Monitoring System sensors

Various Tire Pressure Monitoring System

messages, which display in the instrument
cluster, and a graphic displaying tire pressures
TPMS Warning Light

Tire Pressure Monitoring System Low
Pressure Warnings
The TPMS Warning Light will illuminate in
the instrument cluster, and an audible
chime will be activated, when one or more
of the four active road tire pressures are
low. In addition, the instrument cluster will display
an "Inflate to XX" message and a graphic display
of the pressure value(s) with the low tire(s) in a
different color Ú page 97.
NOTE:
Your system can be set to display pressure units in
PSI, BAR, or kPa.
Low Tire Pressure Monitoring System Display
Should a low tire condition occur on any of the four
active road tire(s), you should stop as soon as
possible, and inflate the low tire(s) that is in a
different color on the graphic display to the
vehicle's recommended cold tire pressure
displayed in the "Inflate to XX" message.
NOTE:
When filling warm tires, the tire pressure may need
to be increased up to an additional 4 psi (28 kPa)
above the recommended cold placard pressure in
order to turn the TPMS Warning Light off.
The system will automatically update, the graphic
display of the pressure value(s) will return to its
original color and the TPMS Warning Light will
extinguish once the updated tire pressure(s) have
been received. The system will automatically update
the graphic display of the pressure value(s) and will
return to its original color. The TPMS Warning Light
will extinguish once the updated tire pressure(s)
have been received in the case when the ignition is
ON. In the case when the ignition is OFF, the ignition
on the vehicle has to be turned ON and may need
to be driven for up to 20 minutes above 15 mph
(24 km/h) to receive this information for the
pressure value(s) to be updated.
Service TPMS Warning
The Tire Pressure Monitoring System Warning Light will
flash on and off for 75 seconds, and remain on solid
when a system fault is detected. The system fault will
also sound a chime. The instrument cluster display will
display a "SERVICE TPM SYSTEM" message for a
minimum of five seconds. This message is then
followed by a graphic display, with "--" in place of the
pressure value(s), indicating which Tire Pressure
Monitoring System sensor(s) is not being received.
If the ignition switch is cycled, this sequence will
repeat, providing the system fault still exists. If the
system fault no longer exists, the Tire Pressure
Monitoring System Warning Light will no longer
flash, the "SERVICE TPM SYSTEM" message will
not be present, and a pressure value will be
displayed instead of dashes. A system fault
can occur by any of the following:
Jamming due to electronic devices or driving

next to facilities emitting the same Radio
Frequencies as the TPMS sensors.