Jeep WRANGLER 2020 Owner's Manual page 170

168 SAFETY
In addition, the instrument cluster will
display a "Service Tire Pressure System"
message for five seconds and then display
dashes (--) in place of the pressure value.
4. For each subsequent ignition cycle, a chime
will sound, the TPMS Warning Light will
flash on and off for 75 seconds and then
remain on solid, and the instrument cluster
will display a "SERVICE TIRE PRESSURE
SYSTEM" message for five seconds and
then display dashes (--) in place of the
pressure value.
5. Once you repair or replace the original road
tire and reinstall it on the vehicle in place of
the compact spare or non-matching full
size, the TPMS will update automatically.
In addition, the TPMS Warning Light will turn
off and the graphic in the instrument cluster
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.
Vehicles With a Full Size Matching Spare
1. If your vehicle is equipped with a matching
full-size spare wheel and tire assembly, it
has a tire pressure monitoring sensor, and
can be monitored by the Tire Pressure
Monitoring System (TPMS) when swapped
with a low pressure road tire.
2. In the event that the matching full-size
spare tire is swapped with a low pressure
road tire, the next ignition switch cycle will
still show the TPMS Warning Light to be on,
a chime to sound, an Inflate to XX message
to appear in the instrument cluster, and the
graphic display will still show the low tire
pressure value in a different color.
3. Driving the vehicle for up to 20 minutes
above 15 mph (24 km/h) will turn off the
TPMS Warning Light as long as none of road
tires are below the low pressure warning
threshold.
TPMS Deactivation — If Equipped
The 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 Tire Pressure Monitoring
(TPM) 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 TIRE PRESSURE 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
TIRE PRESSURE SYSTEM" message in the
instrument cluster but dashes (--) will remain in
place of the pressure values.