Dodge Grand Caravan Owner's Manual page 354

354 STARTING AND OPERATING
be present, and a pressure value will be displayed instead
of dashes. A system fault can occur by any of the
following scenarios:
1. Jamming due to electronic devices or driving next to
facilities emitting the same radio frequencies as the TPMS
sensors.
2. Installing some form of aftermarket window tinting
that affects radio wave signals.
3. Accumulation of excessive snow and/or ice around
the wheels or wheel housings.
4. Using tire chains on the vehicle.
5. Using wheels/tires not equipped with TPMS sensors.
NOTE:
1. The compact spare tire (if so equipped) does not have
a TPMS SENSOR. Therefore, the TPMS will not monitor
the pressure in the compact spare tire.
2. If you install the compact spare tire in place of a road
tire that has a pressure below the low-pressure warning
limit, upon the next ignition key cycle, the TPMS Telltale
Light will remain ON, a chime will sound, and the EVIC
will still display a flashing pressure value in the graphic
display.
3. After driving the vehicle for up to 10 minutes above 15
mph (25 km/h), the TPMS Telltale Light will flash on and
off for 75 seconds and then remain on solid. In addition,
the EVIC will display a CHECK TPM SYSTEM message
for 3 seconds and then display dashes (- -) in place of the
pressure value.
4. For each subsequent ignition key cycle, a chime will
sound, the TPMS Telltale Light will flash on and off for 75
seconds and then remain on solid, and the EVIC will
display a CHECK TPM SYSTEM message for 3 seconds
and then display dashes (- -) in place of the pressure
value.