User Manual - Page 143

For 2020 JEEP GRAND CHEROKEE.

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SAFETY 141
NOTE:
Your system can be set to display pressure units
in PSI, BAR, or kPa.
Low Tire Pressure Monitoring 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 vehicle
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 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 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 TPM sensors
Lots of snow or ice around the wheels or
wheel housings
Using tire chains on the vehicle
Using wheels/tires not equipped with TPM
sensors
NOTE:
There is no tire pressure monitoring sensor in
the spare tire. The TPMS will not be able to
monitor the tire pressure. If you install the spare
tire in place of a road tire that has a pressure
below the low-pressure warning limit, upon the
next ignition switch cycle, the Tire Pressure
Monitoring System Warning Light will remain
on, a chime will sound, and the instrument
cluster display will still display a pressure value
in the different color graphic display and an
“Inflate to XX” message will be displayed.
4
20_WK_OM_EN_USC_t.book Page 141
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