Jeep GRAND CHEROKEE 2022 Owner's Manual page 265

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:
A TPMS sensor is not offered on any size spare tire.
In either option of having a full size spare equipped or
not, the tire pressure is not monitored or displayed on
the cluster for the corresponding spare tire location.
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 automatically.
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 by 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 Tire Pressure Monitoring System
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.
Tire Fill Alert
This feature notifies the user when the placard tire
pressure is attained while inflating or deflating the tire.
The customer may choose to disable or enable the
Tire Fill Alert feature in the apps menu of the
Uconnect system.
SAFETY 263
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