Jeep 2015 Wrangler, Operating Information Manual

Page: 273 / 750

NOTE:
When filling warm tires, the tire pressure
may need to be increased up to an additional
4 psi (30 kPa) above the recommended cold
placard pressure in order to turn the Tire
Pressure Monitoring Telltale Light off.
The vehicle may need to be driven for up to
20 minutes above 15 mph (24 km/h) to receive
this information.
SERVICE TPM SYSTEM Warning
The “Tire Pressure Monitoring Telltale Light” will
flash on and off for 75 seconds, and remain on
solid when a system fault is detected. The
system fault will also sound a chime. The EVIC
will display a “SERVICE TPM SYSTEM” mes-
sage for a minimum of five seconds. This mes-
sage 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:
1. Jamming due to electronic devices or driving
next to facilities emitting the same Radio
Frequencies as the TPM sensors.
2. Installing some form of aftermarket window
tinting that affects radio wave signals.
3. Lots of 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.
The EVIC will also display a " SERVICE TPM
SYSTEM " message for a minimum of five sec-
onds when a system fault is detected possibly
related to an incorrect sensor location fault. In
this case, the
"
SERVICE TPM SYSTEM
"
mes-
sage is then followed by a graphic display, with
pressure values still shown. This indicates the
pressure values are still being received from the
TPM Sensors but they may not be located in the
correct vehicle position. However, the system
still needs to be serviced as long as the
" SER-
VICE TPM SYSTEM " message exists.
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). 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
EVIC, and the graphic display will still
show the
ⴖ
Inflate to XX
ⴖ
message and the
low tire pressure value “flashing.” Driving
the vehicle for up to 20 minutes 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.
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