User Manual - Page 64

For 2019 GRAND CARAVAN.

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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 low enough to
turn ON the “TPMS W arning Light.” Driving the
vehicle may cause the tire pressure to rise to
approximately 28 psi (193 kPa), but the TPMS
W arning 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 recom-
mended cold placard pressure value.
NOTE:
When filling warm tires, the tire pressure may
need to be increased up to an additional 4 psi
(28 kPa) above the recommended cold placard
pressure in order to turn the TPMS W arning
Light off.
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 opera-
tion or sensor damage may result when
using replacement equipment that is not
of the same size, type, and/or style. The
TPM sensor is not designed for use on
aftermarket wheels and may contribute to
a poor overall system performance or sen-
sor damage. Customers are encouraged to
use OEM wheels to assure proper TPM
feature operation.
Using aftermarket tire sealants may cause
the Tire Pressure Monitoring System
(TPMS) sensor to become inoperable. Af-
ter using an aftermarket tire sealant it is
recommended that you take your vehicle to
your authorized 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 TPMS sensor.
NOTE:
The TPMS is not intended to replace normal
tire care and maintenance, or to provide warn-
ing of a tire failure or condition.
The TPMS should not be used as a tire pres-
sure gauge while adjusting your tire pressure.
Driving on a significantly underinflated tire
causes the tire to overheat and can lead to tire
failure. Underinflation also reduces fuel effi-
ciency 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 responsi-
bility 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 TPMS W arning Light.
Seasonal temperature changes will affect tire
pressure, and the TPMS will monitor the ac-
tual tire pressure in the tire.
SAFETY
62
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