User Manual - Page 206

For 2017 JEEP GRAND CHEROKEE SRT.

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The instrument cluster display will display a “SERVICE
TPM SYSTEM” message for a minimum of five seconds.
This message is then followed by a graphic display,
with “- -“ in place of the pressure value(s), indicating
which Tire Pressure Monitoring Sensor(s) 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 Tire Pressure Monitoring Telltale Light
will no longer flash, the SERVICE TPM SYSTEM message
will not be present, and a pressure value will be displayed
instead of dashes. A system fault can occur by any of the
following:
Jamming due to electronic devices or driving next to
facilities emitting the same Radio Frequencies as the
TPM sensors.
Installing some form of aftermarket window tinting that
affects radio wave signals.
Lots of snow or ice around the wheels or wheel hous-
ings.
Using tire chains on the vehicle.
Using wheels/tires not equipped with TPM sensors.
NOTE: There is no tire pressure monitoring sensor in the
spare tire. The TPMS will not be able to monitor the tire
pressure. 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 switch cycle, the Tire Pressure
Monitoring Telltale Light will remain ON, a chime will
sound, and the instrument cluster display will still display
a pressure value in the different color graphic display and
an Inflate to XXX kPa message will be displayed. After
driving the vehicle for up to 20 minutes above 15 mph
(24 km/h), the Tire Pressure Monitoring Telltale Light will
flash on and off for 75 seconds and then remain on solid. In
addition, the instrument cluster display will display a
“SERVICE TPM SYSTEM message for five seconds and
then display dashes (- -) in place of the pressure value. For
each subsequent ignition switch cycle, a chime will sound,
the Tire Pressure Monitoring Telltale Light will flash on
and off for 75 seconds and then remain on solid, and the
instrument cluster display will display a SERVICE TPM
SYSTEM message for 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 spare tire, the TPMS will update
automatically.
204 SAFETY
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