Dodge 2015 Charger, Operating Instructions Manual

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TIRE PRESSURE MONITOR
SYSTEM (TPMS)
The Tire Pressure Monitor System (TPMS) will
warn the driver of a low tire pressure based on
the vehicle recommended cold placard pres-
sure.
The tire pressure will vary with temperature by
about 1 psi (7 kPa) for every 12°F (6.5°C). This
means that when the outside temperature de-
creases, the tire pressure 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 mile (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 “Tires – General Information”
in “Starting and Operating” 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.
The TPMS will warn the driver of a low tire
pressure if the tire pressure falls below the
low-pressure warning limit for any reason, in-
cluding low temperature effects and natural
pressure loss through the tire.
The 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 (Tire Pres-
sure Monitoring [TPM] Telltale Light) illumi-
nates, you must increase the tire pressure to
the recommended cold placard pressure in or-
der for the “TPM Telltale Light” to turn off. The
system will automatically update and the “TPM
Telltale Light” will turn off once the system
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 mea-
sured tire pressure is 27 psi (186 kPa), a tempera-
ture 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 pres-
sure value.
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