Chrysler 2008 Automobile User Manual

The Tire Pressure Monitor System (TPMS) will warn
the driver of a low tire pressure based on the vehicle
recommended cold placard pressure.
The tire pressure will vary with temperature by about
1 psi (7 kPa) for every 12°F (7°C). This means that
when the outside temperature decreases, the tire pres-
sure will decrease. Tire pressure should always be set
based on cold inflation tire pressure. This is defined as
the tire pressure after the vehicle has not been driven
for at least three hours, or driven less than 1 mi (1.6
km) after a three hour period. The cold tire inflation
pressure must not exceed the maximum inflation
pressure molded into the tire sidewall. Refer to the
“Tires General Information” in this section for
information on how to properly inflate the vehicle’s
tires. The tire pressure will also increase as the vehicle
is driven - this is normal and there should be no
adjustment for this increased pressure.
TPMS will warn the driver of a low tire pressure if the
tire pressure falls below the low-pressure warning
limit for any reason, including low temperature effects
and natural pressure loss through the tire.
TPMS will continue to warn the driver of low tire
pressure as long as the condition exists, and will not
turn off until the tire pressure is at or above the
recommended cold placard pressure. Once the low tire
pressure warning has been illuminated, you must
increase the tire pressure to the recommended cold
placard pressure in order for the TPM Light to turn off.
The system will automatically update and the TPM
Light will turn off once the system receives the up-
dated tire pressures. The vehicle may need to be