Jeep Grand Cherokee, Owner'S Manual

Page: 441 / 606

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 Tire to XXX
⬙
message. The system
will automatically update, the graphic display of the
pressure value(s) will return to its original color and the
Tire Pressure Monitoring Telltale Light will extinguish once
the updated tire pressure(s) have been received. The ve-
hicle may need to be driven for up to 20 minutes above
15 mph (24 km/h) to receive this information.
SERVICE TPM SYSTEM Warning
The Tire Pressure Monitoring Telltale 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 EVIC will display a “SERVICE TPM SYS-
TEM” 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 Sensor(s) is not being received.
NOTE: Your system can be set to display pressure units
in PSI or kPa.
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 Telltale
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:
1. Jamming due to electronic devices or driving next to
facilities emitting the same Radio Frequencies as the
TPM sensors.
2. Installing some form of aftermarket window tinting
that affects radio wave signals.
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