Jeep Grand Cherokee 2013 Operating Information Manual page 276

In addition, the Tire Pressure Monitoring Telltale
Light will turn OFF and the graphic in the EVIC
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 20 minutes above 15 mph
(24 km/h) in order for the TPMS to receive this
information.
TPMS Deactivation
The TPMS can be deactivated if replacing all
four wheel and tire assemblies (road tires) with
wheel and tire assemblies that do not have
TPMS Sensors, such as when installing winter
wheel and tire assemblies on your vehicle To
deactivate the TPMS, first, replace all four
wheel and tire assemblies (road tires) with tires
not equipped with Tire Pressure Monitoring
(TPM) Sensors. Then, drive the vehicle for
20 minutes above 24 km/h (15 mph). The TPMS
will chime, the "TPM Telltale Light" will flash on
and off for 75 seconds and then remain on and
272
the Electronic Vehicle Information Center
(EVIC) will display the "SERVICE TPM SYS-
TEM" message and then display dashes (--) in
place of the pressure values. Beginning with the
next ignition switch cycle, the TPMS will no
longer chime or display the "SERVICE TPM
SYSTEM" message in the EVIC but dashes (--)
will remain in place of the pressure values.
To reactivate the TPMS, replace all four wheel
and tire assemblies (road tires) with tires
equipped with TPM sensors. Then, drive the
vehicle for up to 20 minutes above 24 km/h
(15 mph). The TPMS will chime, the "TPM
Telltale Light" will flash on and off for 75 sec-
onds and then turn off, and the Electronic
Vehicle Information Center (EVIC) will display
the "SERVICE TPM SYSTEM" message. The
EVIC will also display pressure values in place
of the dashes. On the next ignition switch cycle
the "SERVICE TPM SYSTEM" message will no
longer be displayed as long as no system fault
exists.
General Information
Transmitter and receivers operate on a carrier
frequency of 433.92 MHz as required by EEC
regulations. These devices must be certified to
conform to specific regulations in each indi-
vidual country. Two sets of regulations are in-
volved: ETS (European Telecommunication
Standard) 300–220, which most countries use,
and German BZT federal regulation 225Z125,
which is based on ETC 300–220 but has addi-
tional unique requirements. Other defined re-
quirements are noted in ANNEX VI of COMMIS-
SION DIRECTIVE 95/56/EC. Operation is
subject to the following conditions:
• This device may not cause harmful interfer-
ence.
• This device must accept any interference
received, including interference that may
cause undesired operation.