Dodge Grand Caravan Owner's Manual page 404

402 STARTING AND OPERATING
TPMS Low Pressure Warnings
The "Tire Pressure Monitoring Telltale Light" will illumi-
nate in the instrument cluster, and an audible chime will be
activated when one or more of the four active road tire
pressures are low. In addition, the instrument cluster will
display a "LOW TIRE" message and a graphic display of
the pressure value(s) with the low tire(s) flashing, high-
lighted or shown in a different color. An Inflate Tire to XX
message will also be displayed.
Should a low tire condition occur on any of the four active
road tire(s), you should stop as soon as possible, and inflate
the low tire(s) that is flashing, highlighted or shown in a
different color on the graphic display to the vehicle's
recommended cold tire pressure value as shown in the
Inflate Tire to XX message.
NOTE: When filling warm tires, the tire pressure may
need to be increased up to an additional 4 psi (30 kPa)
above the recommended cold placard pressure in order to
turn the Tire Pressure Monitoring Telltale Light off.
The system will automatically update, the graphic display
of the pressure value(s) will stop flashing or return to their
original color and the "Tire Pressure Monitoring Telltale
Light" will extinguish once the updated tire pressure(s)
have been received.
NOTE: The vehicle may need to be driven for up to 20
minutes above 15 mph (24 km/h) to receive this informa-
tion.
SERVICE TPM SYSTEM Message
The "Tire Pressure Monitoring Telltale Light" will flash on
and off for 75 seconds, and remain on solid when a system
fault is detected. The system fault will also sound a chime.
The instrument cluster will display a "SERVICE TPM
SYSTEM" message for a minimum of five seconds. This
message is then followed by a graphic display, with - - in
place of the pressure value(s) indicating which TPMS
Sensor(s) is not being received.
If the ignition switch is cycled, this sequence will repeat,
providing the system fault still exists. If the system fault no
longer exists, the "Tire Pressure Monitoring Telltale Light"
will no longer flash, the "SERVICE TPM SYSTEM" mes-
sage will not be present, and a pressure value will be
displayed instead of dashes. A system fault can occur by
any of the following scenarios:
• Jamming due to electronic devices or driving next to
facilities emitting the same radio frequencies as the
TPMS sensors.