Dodge 2009 Challenger Owner's Manual page 315

STARTING AND OPERATING 313
Should this occur, you should stop as soon as possible
and inflate all of the tires with low pressure (including
those flashing in the EVIC graphic) to the vehicle's
recommended cold placard pressure value. Once the
system receives the updated tire pressures, the system
will automatically update, the graphic display in the
EVIC will stop flashing, and the "TPM Telltale Light" will
turn off. The vehicle may need to be driven for up to
20 minutes above 15 mph (25 km/h) in order for the
5
TPMS to receive this information.