Jeep WRANGLER 2017 User Manual page 95

message will not be present, and a pressure
value will be displayed instead of dashes. A
system fault can occur by any of the follow-
ing:
• Jamming due to electronic devices or driv-
ing next to facilities emitting the same
Radio Frequencies as the TPM sensors.
• Installing some form of aftermarket win-
dow tinting that affects radio wave signals.
• Lots of snow or ice around the wheels or
wheel housings.
• Using tire chains on the vehicle.
• Using wheels/tires not equipped with TPM
sensors.
NOTE:
• If your vehicle is equipped with a match-
ing full-size spare wheel and tire assem-
bly, it has a tire pressure monitoring sen-
sor, and can be monitored by the Tire
Pressure Monitoring System (TPMS) when
swapped with a low pressure road tire. In
the event that the matching full-size spare
tire is swapped with a low pressure road
tire, the next ignition switch cycle will still
show the "Tire Pressure Monitoring Tell-
tale Light" to be ON, a chime to sound, a
"LOW TIRE" message to appear in the
instrument cluster, and the graphic dis-
play will still show the low tire pressure
value highlighted or shown in a different
color. Driving the vehicle for up to 20 min-
utes above 15 mph (24 km/h) will turn
OFF the "Tire Pressure Monitoring Telltale
Light" as long as none of road tires are
below the low pressure warning threshold.
• If your vehicle is not equipped with a
matching full-size spare wheel and tire
assembly, it does not have a 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 will still display a
highlighted or different color pressure
value in the graphic display. 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
will display a "SERVICE TPM SYSTEM"
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 "Tire Pressure Monitoring Telltale
Light" will flash on and off for 75 seconds
and then remain on solid, and the instru-
ment 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 spare tire, the TPMS will
update automatically.
In addition, the "Tire Pressure Monitoring
Telltale 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 10 minutes above 15 mph (24 km/h) in
order for the TPMS to receive this informa-
tion.
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