RAM 1500 2019 User Manual page 90

exists, the "Tire Pressure Monitoring Telltale
Light" will no longer flash and the tire pres-
sure display screen will be displayed showing
the tire pressure values the correct locations.
Vehicles With Non Matching Full Size Spare Or
Compact Spare
The non matching full size spare or

compact spare tire does not have a TPM
sensor. Therefore, the TPMS will not
monitor the pressure in the non matching
full size spare or compact spare tire.
If you install the non matching full size

spare or compact spare tire in place of a
road tire that has a pressure below the
low-pressure warning limit, upon the next
ignition switch cycle, the TPM Telltale
Light and a "LOW TIRE" message will
remain ON and a chime will sound. In
addition, the graphic in the instrument
cluster will still display a pressure value in
a different color and an "Inflate to XX"
message.
After driving the vehicle for up to

20 minutes above 15 mph (24 km/h), the
TPM Telltale Light will flash on and off for
75 seconds and then remain on solid. In
addition, the instrument cluster will
display a "SERVICE
88
message for a minimum of five seconds
and then display dashes (- -) in place of
the pressure value.
For each subsequent ignition switch cycle,

a chime will sound, the TPM Telltale Light
will flash on and off for 75 seconds and
then remain on solid, and 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.
Once you repair or replace the original

road tire and reinstall it on the vehicle in
place of the non matching full size spare
or compact spare, the TPMS will update
automatically. In addition, the TPM Tell-
tale Light will turn OFF and the graphic in
the instrument cluster will display a new
pressure value instead of dashes (- -), as
long as no tire pressure is below the
low-pressure warning limit in any of the
four active road tires. 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.
TPM SYSTEM"
Tire Fill Alert
This feature notifies the user when the
placard tire pressure is attained while
inflating or deflating the tire.
The customer may choose to disable or
enable the Tire Fill Alert feature through use
of the customer settings in the radio.
NOTE:
Only one tire can be filled at a time when

using the Tire Fill Alert system.
The Tire Fill Alert feature cannot be

entered if an existing TPM system fault is
set to "active" or if the system is in deac-
tivation mode (if equipped).
The system will be activated when the TPM
receiver module detects a change in tire
pressure. The ignition must be in the RUN
mode, with the transmission in PARK (P).
NOTE:
It is not required to have the engine running
to enter Tire Fill Alert mode.
The hazard lamps will come on to confirm
the vehicle is in Tire Fill Alert mode.
When Tire Fill Alert Mode is entered, the tire
pressure display screen will be displayed in
the instrument cluster.