Chrysler PACIFICA HYBRID 2019, User Manual, Page: 93 / 244

1. This device may not cause harmful interference.
2. This device must accept any interference re-
ceived, including interference that may cause
undesired operation.
NOTE:
Changes or modifications not expressly approved
by the party responsible for compliance could void
the user’s authority to operate the equipment.
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 pressure.
NOTE:
The TPMS Warning Light will illuminate in the in-
strument cluster and a chime will sound when tire
pressure is low in one or more of the four active road
tires. In addition, the instrument cluster will display a
graphic showing the pressure values of each tire
with the low tire pressure values in a different color,
when this occurs you must increase the tire pressure
to the recommended cold placard pressure in order
for the TPMS Warning Light to turn off.
The tire pressure will vary with temperature by ap-
proximately 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 Maintenance” for information on how to prop-
erly 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 in-
creased pressure.
The TPMS will warn the driver of a low tire pressure
if the tire pressure falls below the low-pressure warn-
ing limit for any reason, including 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 (TPMS Warning Light) illumi-
nates, you must increase the tire pressure to the
recommended cold placard pressure in order for
the TPMS Warning Light to turn off.
The system will automatically update and the
TPMS Warning 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 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 ap-
proximately 24 psi (165 kPa). This tire pressure is low
enough to turn ON the “TPMS Warning Light.”
Driving the vehicle may cause the tire pressure to
rise to approximately 28 psi (193 kPa), but the
TPMS Warning Light will still be on. In this situation,
the TPMS Warning Light will turn off only after the
tires are inflated to the vehicle’s recommended cold
placard pressure value.
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