I saw this in a TSB for an Acura and found that it works on other vehicles as well. If you are having a hard time getting your TPMS tool to activate the sensors on a particular vehicle there is a way around this. Find a deserted street (no other sensors around), drive the vehicle at 10 mph, while driving clear the TPMS codes and begin the learn process with a scan tool. All the sensors should be active when driving at 10 mph and quickly be learned.

DISCLAIMER I highly recommend having a copilot run the scan tool. Due to the random order in the learning this should only be done on vehicles where all the tire pressures are the same front to rear and shouldn't be done on vehicles where the tire position and pressure is reported on the dash.

Andrew from Utah