Dodge RAM 2500 2022 Owner's Manual page 326

322 SAFETY
The customer may also store the pressure values
chosen for each axle in the radio as a preset
pressure. The customer will be allowed to store up
to two sets of preset values in the radio for the
front and rear axle pressure values.
Once the customer selects the tire pressures for
the front and rear axles that they want to inflate or
deflate to, they can begin inflating or deflating one
tire at a time.
NOTE:
The STFA system will only support inflating or
deflating one tire at a time.
The customer may choose to disable or enable the
STFA feature through use of the TFA settings in the
radio. If STFA appears grayed out it must be turned
on prior to selecting.
In order to use STFA, the Tire Fill Alert feature must
be enabled through the radio Ú page 247.
The system will be activated when the TPMS
receiver module detects a change in tire pressure.
The ignition must be in the RUN mode, with the
transmission in PARK (P).
The hazard lamps will come on to confirm the
vehicle is in Tire Fill Alert mode.
If the hazard lamps do not come on while inflating
or deflating the tire, the TPMS sensor may be in an
inoperative position, preventing the TPMS sensor
signal from being received. In this case, the vehicle
may need to be moved slightly forward or
backward.
When Tire Fill Alert mode is entered, the tire
pressure display screen will be displayed in the
instrument cluster.
Operation:
The horn will chirp once when the selected pres-

sure is reached to let the user know when to
stop inflating or deflating the tire.
The horn will chirp three times if the tire is over-

inflated or over deflated and will continue to
chirp every five seconds if the user continues to
inflate or deflate the tire.
The horn will chirp once again when enough air

is added or removed to reach proper selected
pressure level.
Tire Pressure Information System (TPIS)
3500 Series Trucks
Your vehicle may be equipped with a TPIS.
The TPIS uses wireless technology with wheel rim
mounted electronic sensors to transmit 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 TPIS consists of the following components:
Receiver module

Four TPMS sensors (Single Rear Wheel (SRW)

applications)
Six TPMS sensors (Dual Rear Wheel (DRW)

applications)
Pressure display in the instrument cluster

The TPIS will display all four (Single Rear Wheel
(SRW) applications) or six (Dual Rear Wheel (DRW)
applications) tire pressure values in the instrument
cluster display.
If a system fault is detected, the instrument cluster
will display a "SERVICE TPM SYSTEM" message for
a minimum of five seconds and then display
dashes (- -) in place of the pressure value to
indicate which sensor is not being received.
If the ignition switch is cycled, this sequence will
repeat, providing the system fault still exists. If the
system fault no longer exists, the "SERVICE TPM
SYSTEM" message will no longer be displayed, and
a pressure value will display in place of the dashes.