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322 SAFETY
If the ignition is cycled, this sequence will repeat,
providing the system fault still exists. If the system
fault no longer exists, the TPMS Warning Light will
no longer flash, and the “SERVICE TIRE PRESSURE
SYSTEM” message will no longer display, and a
pressure value will display in place of the dashes.
A system fault can occur due to any of the
following:
Jamming due to electronic devices or driving
next to facilities emitting the same radio
frequencies as the TPMS sensors.
Installing some form of aftermarket window
tinting that affects radio wave signals.
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.
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 System 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.
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.
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 system 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 in tire pressure while filling the
tire. The ignition must be in the ON/RUN mode with
the transmission in PARK for vehicles equipped
with an automatic transmission. For vehicles
equipped with a manual transmission, the parking
brake must be applied.
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 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.
The Tire Fill Alert system will only inflate or deflate
one tire at a time. Wait until the hazard lights have
stopped flashing for 30 seconds after the desired
pressure is achieved in one tire before switching to
another.
When Tire Fill Alert mode is entered, the tire
pressure display screen will be displayed in the
instrument cluster.
22_JT_OM_EN_USC_t.book Page 322
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