Jeep Gladiator 2021, Owner'S Manual

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320 SAFETY
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The horn will also chirp three times if the tire
is then under-inflated and will continue to
chirp every five seconds if the user continues
to deflate the tire.
Selectable Tire Fill Alert — If Equipped
The Selectable Tire Fill Alert (STFA) system is an
optional feature that is included as part of the
normal Tire Fill Alert system. The system is
designed to allow you to select a pressure to
inflate or deflate the vehicle's front and rear
axle tires to, and to provide feedback while
inflating or deflating the vehicle's tires.
In the Selectable Tire Fill Alert application,
which is located in the apps menu of the
Uconnect system, you will be able to select a
pressure setting for both the front and rear axle
tire pressures by scrolling through a pressure
range from XX to 15 psi in 1 psi increments for
each axle setting.
XX = the vehicle's cold placard pressure values
for the front and rear axles as shown on the
vehicle placard pressure label.
You may also store pressure values chosen for
each axle in the Uconnect system application as
preset pressure values. Up to two sets of preset
pressure values can be stored in the Uconnect
system for the front and rear axle. Once you
select the tire pressures for the front and rear
axles that you want to inflate or deflate to, you
can begin inflating or deflating one tire at a
time.
NOTE:
The STFA system will only support inflating or
deflating one tire at a time.
The system will be activated when the TPMS
receiver module detects a change in tire
pressure. The ignition must be in the ON/RUN
mode, with the transmission in PARK in vehicles
with an automatic transmission, and in
NEUTRAL with the parking brake engaged in
vehicles with a manual transmission. The
hazard lamps will come on to confirm the
vehicle is in Tire Fill Alert mode.
When Tire Fill Alert Mode is entered, the tire
pressure screen will be displayed in the
instrument cluster. If the hazard lamps do not
come on while inflating or deflating the tire, the
Tire Pressure Monitoring System (TPMS) sensor
may be in an inoperative position, preventing
the TPMS sensor signal from being received. In
this case, the vehicle may need to be moved
slightly forward or backward.
Horn chirps will indicate STFA status as tires are
inflated/deflated. The horn will chirp under the
following STFA states:
1. The horn will chirp once when the selected
pressure is reached to let you know when
to stop inflating or deflating the tire.
2. The horn will chirp three times if the tire is
over-inflated or over-deflated.
3. The horn will chirp once again when enough
air is added or removed to reach proper
selected pressure level.
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
System (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