[StiloJ]

con il GS-911 occorre inserire manualmente il codice numerico del sensore presente sulla faccia superiore dello stesso, quindi occorre prendere nota del numero del sensore e del suo posizionamento (ruota anteriore e/o posteriore) PRIMA di rimontare il pneumatico.
Se non si fa così l'unica altra alternativa è rivolgersi al concessionario.

in realtà ho appena visto che c'è un terzo modo:
"THE CORRECT ALTERNATIVE, also known as the "ALERT method" is to let the air out of the wheel rapidly (we simply depress the valve for around 10 seconds)... this rapid fall in pressure wakes the sensor and places it in an Alert mode, where it starts sending its data (which obviously includes its Sensor ID!).

Thus, to summarize, if you do not have a RDC wake-up tool, either enter the new Sensor ID manually in the Advance section (this of course assumes you noted the Sensor ID before refitting the wheel ;-) ), or when the GS-911 application asks you to use the wake-up tool, simply depress the valve of the tire that you want to wake for around 10 seconds, which will in turn wake the sensor in an Alert mode where it then sends its Sensor ID and pressure information...."