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SAFETY 329
The horn will chirp once again when enough
air is let out to reach proper inflation level.
The horn will also chirp three times if the tire
is then underinflated and will continue to
chirp every five seconds if the user continues
to deflate the tire.
Selectable Tire Fill Alert (STFA)
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 the customer to select a
pressure to inflate or deflate the vehicle's front
and rear axle tires to and to provide feedback to
the customer 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, the customer 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.
The customer may also store the pressure
values chosen for each axle in the radio as a
preset pressure. The customer will be allowed
to store up to two sets of preset values in the
radio for the front and rear axle pressure values.
Once the customer selects the tire pressures for
the front and rear axles that they want to inflate
or deflate to, they 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 customer may choose to disable or enable
the STFA feature through use of the TFA settings
in the radio. If STFA appears grayed out it must
be turned on prior to selecting.
The system will be activated when the TPMS
receiver module detects a change in tire
pressure. The ignition must be in the RUN
mode, with the transmission in PARK (P).
The hazard lamps will come on to confirm the
vehicle is in Tire Fill Alert mode.
If the hazard lamps do not come on while
inflating or deflating the tire, the 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.
When Tire Fill Alert mode is entered, the tire
pressure display screen will be displayed in the
instrument cluster.
Operation:
The horn will chirp once when the selected
pressure is reached to let the user know
when to stop inflating or deflating the tire.
The horn will chirp three times if the tire is
overinflated or over deflated and will
continue to chirp every five seconds if the
user continues to inflate or deflate the tire.
The horn will chirp once again when enough
air is added or removed to reach proper
selected pressure level.
Tire Pressure Information System (TPIS)
3500 Series Trucks
Your vehicle may be equipped with a TPIS.
The TPIS uses wireless technology with wheel
rim mounted electronic sensors to transmit tire
pressure levels. Sensors mounted to each
wheel as part of the valve stem transmit tire
pressure readings to the receiver module.
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21_DJD2_OM_EN_USC_t.book Page 329
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