Jeep GRAND CHEROKEE WK 2022 Owner's Manual page 201

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
Lots of snow or ice around the wheels or wheel

housings
Using tire chains on the vehicle

Using wheels/tires not equipped with TPMS

sensors
NOTE:
There is no Tire Pressure Monitoring System
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. After driving the vehicle for up to
20 minutes above 15 mph (24 km/h), the Tire
Pressure Monitoring System Warning Light will
flash on and off for 75 seconds and then remain on
solid. In addition, the instrument cluster display
will display a "SERVICE TPM SYSTEM" message for
five seconds and then display dashes (- -) in place
of the pressure value. For each subsequent
ignition switch cycle, a chime will sound, the Tire
Pressure Monitoring System Warning Light will
flash on and off for 75 seconds and then remain on
solid, and the instrument cluster display will
display a "SERVICE TPM SYSTEM" message for five
seconds and then display dashes (- -) in place of
the pressure value. Once you repair or replace the
original road tire, and reinstall it on the vehicle in
place of the spare tire, the TPMS will update auto-
matically.
In addition, the Tire Pressure Monitoring System
Warning Light will turn off and the graphic in the
instrument cluster display will display a new
pressure value instead of dashes (- -), 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 20 minutes above
15 mph (24 km/h) in order for the TPMS to receive
this information.
TPMS Deactivation — If Equipped
The Tire Pressure Monitoring System (TPMS) can
be deactivated if replacing all four wheel and tire
assemblies (road tires) with wheel and tire
assemblies that do not have TPMS sensors, 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 tires not
equipped with TPMS sensors. Then, drive the
vehicle for 20 minutes above 15 mph (24 km/h).
The TPMS will chime, the TPMS Warning Light will
flash on and off for 75 seconds and then remain
on. The instrument cluster will display the
"SERVICE TPM SYSTEM" message and then
display dashes (--) in place of the pressure values.
Beginning with the next ignition cycle, the TPMS
will no longer chime or display the "SERVICE TPM
SYSTEM" message in the instrument cluster but
dashes (--) will remain in place of the pressure
values.
To reactivate the TPMS, replace all four wheel and
tire assemblies (road tires) with tires equipped with
TPMS sensors. Then, drive the vehicle for up to
20 minutes above 15 mph (24 km/h). The TPMS
will chime, the TPMS Warning Light will flash on
and off for 75 seconds and then turn off. The
instrument cluster will display the "SERVICE TPM
SYSTEM" message and then display pressure
values in place of the dashes. On the next ignition
cycle the "SERVICE TPM SYSTEM" message will no
longer be displayed as long as no system fault
exists.
SAFETY 199
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