220 SAFETY
(Continued)
placard pressure. Once the low tire pressure warning (Tire
Pressure Monitoring System Warning Light) illuminates,
you must increase the tire pressure to the recommended cold
placard pressure in order for the TPMS Light to turn off.
The system will automatically update and the TPMS
Warn
ing 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 recommended cold
(parke
d 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 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.
NOTE:
When filling warm tires, the tire pressure may need to be
incr
eased up to an additional 4 psi (28 kPa) above the recom-
mended cold placard pressure in order to turn the TPMS
W
arn
ing Light off.
CAUTION!
• T
he TPMS has been optimized for the original equip-
men
t tires and wheels. TPMS pressures and warning
have
been established 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. The TPM
sensor is not designed for use on aftermarket wheels,
and may contribute to a poor overall system perfor
-
mance. Customers are encouraged to use OEM wheels
to as
sure TPMS feature operation.
• Using aftermarket tire sealants may cause the Tire Pres-
sur
e Monitoring System (TPMS) sensor to become
inope
rable. After using an aftermarket tire sealant it is
recommended that you take your vehicle to an autho
-
rized dealer to have your sensor function checked.
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