RAM Commercial PROMASTER 2022, Owner'S Manual

Page: 163 / 284

SAFETY 161
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 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 responsibility
to maintain correct tire pressure using an accu -
rate tire pressure gauge, even if underinflation
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
Ú
page 270.
Base System
This is the TPMS warning indicator
located in the instrument cluster. The
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 regularly
and to maintain the proper pressure.
The TPMS consists of the following components:

Receiver module

Four Tire Pressure Monitoring System sensors

Tire Pressure Monitoring System Warning Light
Tire Pressure Monitoring System Low
Pressure Warnings
The Tire Pressure Monitoring System Warning Light
will illuminate in the instrument cluster, an audible
chime will be activated, and the “Check tire
pressure” message will display when one or more
of the four active road tire pressures are low.
Should this occur, you should stop as soon as
possible, check the inflation pressure of each tire
on your vehicle, and inflate each tire to the
vehicle’s recommended cold placard pressure
value. The system will automatically update and
the Tire Pressure Monitoring System Warning Light
will extinguish once the updated tire pressures
have been received. The vehicle may need to be
driven for up to 20 minutes above 15 mph
(24 km/h) to receive this information.
Check TPMS Warnings
The Tire Pressure Monitoring System Warning Light
will flash on and off for 75 seconds and remain on
solid when a system fault is detected, an audible
chime will be activated and the “Tire Pressure
Monitoring Unavailable” message will display.
If the ignition key is cycled, this sequence will
repeat providing the system fault still exists. The
TPMS Warning Light will turn off when the fault
condition no longer exists. A system fault can occur
with any of the following scenarios:

Jamming due to electronic devices or driving
next to facilities emitting the same radio
frequencies as the TPMS sensors

Installing some form of aftermarket window
tinting that affects radio wave signals

Snow or ice around the wheels or wheel
housings

Using tire chains on the vehicle

Using wheels/tires not equipped with TPMS
sensors
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