Chrysler 2008 PT Cruiser, Owner'S Manual

Page: 335 / 491

driven for up to 10 minutes above 15 mph (25 km/h)
in order for the TPMS to receive this information.
− For example, your vehicle may have a recom-
mended cold (parked for more than three hours)
placard pressure of 33 psi (227 kPa). If the ambient
temperature is 68° F (20° C) and the measured tire
pressure is 28 psi (193 kPa), a temperature drop to
20° F (-7° C) will decrease the tire pressure to
approximately 24 psi (165 kPa). This tire pressure is
sufficiently low enough to turn ON the TPM Light.
Driving the vehicle may cause the tire pressure to
rise to approximately 28 psi (193 kPa), but the TPM
Light will still be ON. In this situation, the TPM
Light will turn OFF only after the tires are inflated to
the vehicle’s recommended cold placard pressure
value.
CAUTION!
•
The TPMS has been optimized for the original
equipment tires and wheels. TPMS pressures and
warning have been established for the tire size
equipped on your vehicle. Undesirable system
operation or sensor damage may result when us-
ing replacement equipment that is not of the same
size, type, and/or style. Aftermarket wheels can
cause sensor damage. Do not use aftermarket tire
sealants or balance beads if your vehicle is
equipped with a TPMS, as damage to the sensors
may result.
•
After inspecting or adjusting the tire pressure,
always reinstall the valve stem cap. This will
prevent moisture and dirt from entering the valve
stem, which could damage the Tire Pressure Moni-
toring Sensor.
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