Lexus IS F 2012 Owner's Manual page 414

4-3. Do-it-yourself maintenance
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Selecting ID codes
When replacing tires, make sure to select the ID code set that matches
the new tire set. If the ID code is set to the wrong tire setting, the tire
pressure warning system will not operate properly. After driving for
about 20 minutes, the tire pressure warning light comes on after blink-
ing for 1 minute to indicate a system malfunction.
414
Tire pressure warning valve and
transmitter ID code settings dis-
play
 
Press " " or " " repeatedly until
the setting display appears.
Switching ID codes
Press the "ON/OFF" button to
switch between "MAIN" and
"2ND" ID codes.