System Limitations
The TTPMS may have difficulty transmitting through
steel-walled tires or on trailers longer than 30 ft. It is
recommended to use standard tires and trailers less
than 30 ft long to avoid dropouts or difficulty when
pairing.
NOTE:
The vehicle may not be driven until the pairing process
is complete.
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 through use of the customer settings in
the radio.
NOTE:
•
Only one tire can be filled at a time when using the
Tire Fill Alert system.
•
The Tire Fill Alert feature cannot be entered if an
existing TPMS fault is set to “active” or if the system
is in deactivation mode (if equipped).
The system will be activated when the system detects
an increase of tire pressure, while filling the fire. The
ignition must be in the RUN mode, with the transmis-
sion in PARK (P).
NOTE:
It is not required to have the engine running to enter
Tire Fill Alert mode.
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 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 to let the user know when
to stop filling the tire, when it reaches recom-
mended pressure.
•
The horn will chirp three times if the tire is overfilled
and will continue to chirp every five seconds if the
user continues to inflate the tire.
•
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.
NOTE:
After use, the TFA feature will NOT remain active after
ignition shut down. The feature will need to be
re-enabled when the vehicle is restarted
page 174.
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.
NOTE:
The Tire Fill Alert feature disables every time the igni-
tion is placed in the OFF position. The feature must be
re-enabled through the radio each time the ignition is
placed back in the ON/RUN position
page 174.
The customer may also store the pressure values cho-
sen for each axle in the radio as a preset pressure. The
customer will be allowed to store up to two sets of pre-
set values in the radio for the front and rear axle pres-
sure 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.
In order to use STFA, the Tire Fill Alert feature must be
enabled through the radio
page 174.
218 SAFETY
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