RAM 1500 CLASSIC 2020 Owner's Manual page 129

NOTE:
The TPMS is not intended to replace normal tire

care and maintenance or to provide warning of
a tire failure or condition.
The TPMS should not be used as a tire pressure

gauge while adjusting your tire pressure.
Driving on a significantly under-inflated tire

causes the tire to overheat and can lead to tire
failure. Under-inflation 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 responsibility
to maintain correct tire pressure using an accu-
rate tire pressure gauge, even if under-inflation
has not reached the level to trigger illumination
of the TPMS Warning Light.
Seasonal temperature changes will affect tire

pressure, and the TPMS will monitor the actual
tire pressure in the tire.
Premium System
The Tire Pressure Monitoring System (TPMS) uses
wireless technology with wheel rim mounted
electronic sensors to monitor tire pressure levels.
Sensors, mounted to each wheel as part of the
valve stem, transmit tire pressure readings to the
receiver module.
NOTE:
It is particularly important for you to check the tire
pressure in all of the tires on your vehicle monthly
and to maintain the proper pressure.
The TPMS consists of the following components:
Receiver module

Four Tire Pressure Monitoring sensors

Various Tire Pressure Monitoring System

messages, which display in the instrument
cluster
Tire Pressure Monitoring System Warning Light

TIRE PRESSURE MONITORING LOW PRESSURE
WARNINGS
The TPMS Warning Light will illuminate
in the instrument 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. An "Inflate to XX" message will also be
displayed.
"LOW TIRE PRESSURE" Message
Should this occur, you should stop as soon as
possible and inflate the tires with a low pressure
condition (those in a different color in the
instrument cluster graphic) to the vehicle's
recommended cold placard pressure inflation
value as shown in the "Inflate to XX" message.
Once the system receives the updated tire
pressures, the system will automatically update,
the graphic display in the instrument cluster will
return to its original color, and the TPMS Warning
Light will turn off. 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.
SAFETY 127
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