Dodge Challenger SRT 392 2015 Operating Information Manual page 225

receives the updated tire pressures. The vehicle
may need to be driven for up to 20 minutes
above 15 mph (24 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 30 psi (207 kPa). If the
ambient temperature is 68°F (20°C) and the
measured tire pressure is 27 psi (186 kPa), a
temperature drop to 20°F (-7°C) will decrease
the tire pressure to approximately 23 psi (158
kPa). This tire pressure is sufficiently low
enough to turn ON the "TPM Telltale Light."
Driving the vehicle may cause the tire pressure
to rise to approximately 27 psi (186 kPa), but
the "TPM Telltale Light" will still be ON. In this
situation, the "TPM Telltale Light" will turn OFF
only after the tires are inflated to the vehicle's
recommended cold placard pressure value.
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CAUTION!
• The TPMS has been optimized for the
original equipment tires and wheels. TPMS
pressures and warning have been estab-
lished for the tire size equipped on your
vehicle. Undesirable system operation or
sensor damage may result when using
replacement equipment that is not of the
same size, type, and/or style. Aftermarket
wheels can cause sensor damage. Using
aftermarket tire sealants may cause the
Tire Pressure Monitoring System (TPMS)
sensor to become inoperable. After using
an aftermarket tire sealant it is recom-
mended that you take your vehicle to your
local dealer to have your sensor function
checked.
• After inspecting or adjusting the tire pres-
sure, always reinstall the valve stem cap.
This will prevent moisture and dirt from
entering the valve stem, which could dam-
age the TPM sensor.
NOTE:
• The TPMS is not intended to replace nor-
mal tire care and maintenance or to pro-
vide warning of a tire failure or condition.
• The TPMS should not be used as a tire
pressure gauge while adjusting your tire
pressure.
• Driving on a significantly under-inflated
tire causes the tire to overheat and can
lead to tire failure. Under-inflation also
reduces fuel efficiency and tire tread life,
and may affect the vehicle's handling and
stopping ability.
• The TPMS is not a substitute for proper
tire maintenance, and it is the driver's
responsibility to maintain correct tire
pressure using an accurate tire pressure
gauge, even if under-inflation has not
reached the level to trigger illumination of
the "TPM Telltale Light."
• Seasonal temperature changes will affect
tire pressure, and the TPMS will monitor
the actual tire pressure in the tire.