Tire Pressure Monitoring System (Tpms) - Chrysler 300 2017 Owner's Manual

• FCW may not react to irrelevant objects such
as overhead objects, ground reflections, ob-
jects not in the path of the vehicle, stationary
objects that are far away, oncoming traffic, or
leading vehicles with the same or higher rate
of speed.
• FCW will be disabled like ACC, with the
unavailable screens.
FCW Limited Warning
If the instrument cluster display reads "ACC/
FCW Limited Functionality" or "ACC/FCW Lim-
ited Functionality Clean Front Windshield" mo-
mentarily, there may be a condition that limits
FCW functionality. Although the vehicle is still
drivable under normal conditions, the active
braking may not be fully available. Once the
condition that limited the system performance is
no longer present, the system will return to its
full performance state. If the problem persists,
see your authorized dealer.
Service FCW Warning
If the system turns off, and the instrument
cluster display reads:
• ACC/FCW Unavailable Service Required
• Cruise/FCW Unavailable Service Required
This indicates there is an internal system fault.
Although the vehicle is still drivable under nor-
mal conditions, have the system checked by an
authorized dealer.
Tire Pressure Monitoring 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" in "Servicing And Main-
tenance" 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) illuminates,
you must increase the tire pressure to the
recommended cold placard pressure in order 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 up-
dated tire pressures. The vehicle may need to
be driven for up to 10 minutes above 15 mph
(24 km/h) in order for the TPMS to receive this
information.
NOTE:
When filling warm tires, the tire pressure may
need to be increased up to an additional 4 psi
(30 kPa) above the recommended cold placard
pressure in order to turn the Tire Pressure
Monitoring Telltale Light off.
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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