SERVICE TPM SYSTEM- Page 226

2018 Jeep Wrangler JK Owner Manual

Table of Contents

GETTING TO KNOW YOUR VEHICLE
GETTING TO KNOW YOUR INSTRUMENT PANEL
SAFETY
OCCUPANT RESTRAINT SYSTEMS
STARTING AND OPERATING
SERVICING AND MAINTENANCE
MULTIMEDIA
UCONNECT PHONE — IF EQUIPPED
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If the ignition switch is cycled, this sequence will repeat,

providing the system fault still exists. If the system fault no

longer exists, the TPMS Warning 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:

If your vehicle is equipped with a matching full-size

spare wheel and tire assembly, it has a tire pressure

monitoring sensor, 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 TPMS Warning Light to be ON, a chime to

sound, an

Inflate to XX

message to appear in the

instrument cluster, and the graphic display will still

show the low tire pressure value highlighted or shown

in a different color. Driving the vehicle for up to 20

minutes above 15 mph (24 km/h) will turn OFF the

TPMS Warning 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 TPMS Warning 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 TPMS Warning Light will flash on and off for 75

seconds and then remain on solid. In addition, the

instrument cluster will display a “SERVICE TPM SYS-

TEM

message for a minimum of five seconds and then

display dashes (- -) in place of the pressure value. For

224

SAFETY

Detailed Information for 2018 Jeep Wrangler JK Owner Manual

Lists of information found in 2018 Jeep Wrangler JK Owner Manual - Page 226

  • 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.
  • If your vehicle is equipped with a matching full-size spare wheel and tire assembly, it has a tire pressure monitoring sensor, and can be monitored by the Tire Pressure Monitoring System (TPMS) when swapped with a low pressure road tire.
  • 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.

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