Premium System - If Equipped - Jeep Grand Cherokee Owner's Manual

longer be displayed when the fault condition no
longer exists. A system fault can occur by any
of the following:
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 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.
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 LOW PRESSURE mes-
sage, and a chime to sound. Driving the
vehicle for up to 20 minutes above 15 mph
(24 km/h) will turn off the TIRE LOW
PRESSURE message, as long as none of
the 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, a
chime will sound and the TIRE LOW
PRESSURE message will still be dis-
played. After driving the vehicle for up to
20 minutes above 15 mph (25 km/h), the
CHECK TPM SYSTEM message will be
displayed. For each subsequent ignition
switch cycle, a chime will sound and the
CHECK TPM SYSTEM message will be
displayed. 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 and the
CHECK TPM SYSTEM message will turn
off, 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 20 minutes
above 15 mph (24 km/h) in order for the
TPMS to receive this information.
Premium System — If Equipped
The Tire Pressure Monitor System (TPMS) uses
wireless technology with wheel rim-mounted
electronic sensors to monitor tire pressure lev-
els. Sensors, mounted to each wheel as part of
the valve stem, transmit tire pressure readings
to the Receiver Module.
NOTE:
It is particularly important, for you to regu-
larly check the tire pressure in all of your
tires and to maintain the proper pressure.
The Tire Pressure Monitor System (TPMS) con-
sists of the following components:
• Receiver Module
• Four Tire Pressure Monitoring Sensors
• Three Trigger Modules (mounted in three of
the four wheel wells)
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