RAM Commercial Promaster 2018 User Manual page 46

Tire Pressure Monitoring Low Pressure
Warnings
The Tire Pressure Monitoring Telltale Light
will illuminate in the instrument cluster, an
audible chime will be activated, and the
"Check tire pressure" text message will dis-
play 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 recom-
mended cold placard pressure value. The
system will automatically update and the Tire
Pressure Monitoring 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 Telltale Light
will flash on and off for 75 seconds and
remain on solid when a system fault is de-
tected, an audible chime will be activated
44
and the "Tire Pressure Monitoring Unavail-
able" text message will display. If the ignition
key is cycled, this sequence will repeat pro-
viding the system fault still exists. The Tire
Pressure Monitoring Telltale Light will turn
off when the fault condition no longer exists.
A system fault can occur with any of the
following scenarios:
1. Jamming due to electronic devices or driv-
ing next to facilities emitting the same
radio frequencies as the TPM sensors.
2. Installing some form of aftermarket win-
dow tinting that affects radio wave
signals.
3. Snow or ice around the wheels or wheel
housings.
4. Using tire chains on the vehicle.
5. Using wheels/tires not equipped with
TPM sensors.
NOTE:
Your vehicle is equipped with a regular size
spare wheel.
1. The spare tire has a tire pressure monitor-
ing sensor, but it is not monitored until it
is mounted in place of any of the existing
four road tires.
2. If you install the spare tire in place of a
road tire that has a pressure below the
low-pressure warning limit, upon the next
ignition key cycle, a chime will sound and
the Tire Pressure Monitoring Telltale Light
will turn ON due to the low tire condition.
Then, after driving the vehicle for up to
20 minutes above 15 mph (24 km/h), the
system will recognize the new sensor, and
turn off the telltale.
3. If a spare tire not equipped with tire
pressure monitoring sensor is used, then
the Tire Pressure Monitoring Telltale Light
will turn ON, flashing for 75 seconds and
then remaining solid for each subsequent
ignition key cycle.
NOTE:
For correct Tire Pressure Monitoring behavior,
please wait for about 20 minutes in key-off
during each tire substitution.