The operation and lamp/chime strategy of the Base Tire Pressure Monitoring
System (TPMS) also applies to the Premium TPMS, but the premium TPMS can
display text messages and a tire pressure graphic display on the information
cluster. If a low pressure condition is detected, in addition to a chime and
indicator lamp turning ON, a graphic display of the pressure value(s) with the
low tire(s) flashing will appear in the Electronic Vehicle Information Center
(EVIC). Once pressure in the suspect tire(s) raises above the Low Pressure
(lamp) OFF Threshold (see placard table below), the lamp will go out once the
WCM receives a valid transmission from the sensor. If a system fault is detected,
in addition to a chime and a indicator lamp flashing, a "Check TPM System" text
message will be displayed in the instrument cluster, and the tire pressure graphic
display will have "- -" in place of the pressure value. After the flash sequence, the
TPM indicator lamp will remain illuminated. The system will return to normal
once the WCM receives a valid transmission from that sensor location.
The Premium TPMS determines the location of the tire pressure sensors by using
transponders located in three of the four wheel wells on the vehicle. A fourth
transponder is not necessary in the remaining wheel well due to the process of
elimination theory. Once the system knows the location of the first three sensors,
it assumes the location of the fourth tire pressure sensor, and updates the graphic
display when necessary. For more information, refer to
TRANSPONDER,
TIRE PRESSURE MONITORING (TPM), OPERATION
.
TPM THRESHOLD PRESSURES
TPM THRESHOLD PRESSURES TABLE
NOTE:
To determine the pressure thresholds for a vehicle, refer
to the Tire Inflation Pressure (Placard) Label found on the
Driver's B-Pillar, then apply the placard pressure to the
following table.
Placard Pressure
(Cold) (PSI)
Low Pressure ON
Threshold (PSI)
Low Pressure OFF
Threshold (PSI)
28
22
26
29
23
27
30
24
28
31
25
29
32
25
29
2014 Jeep Patriot Limited
2014 SUSPENSION Tires & Wheels - Service Information - Compass & Patriot
Tuesday, July 19, 2016 10:01:58 AM
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