I own a 2011 Toyota Yaris and it's had all 4 sensors of the Tpms dead for some time now. I never minded it and just checked the air manually. Well I got 4 brand new tires today and noticed my light isn't on the dash anymore. Anyone know why that is? I didn't ask them to replace the sensors so the light should stay on.
they probably did for free for you
Perhaps they reset it.
Sometimes if you have one thats weak but still intermittently sending a signal, moving position triggers a relearn. Happens automatically on most vehicles to keep you from having to get the dealer to reprogram them after a tire rotation. It’ll eventually come back on if they were dead before.
They could have just changed out the batteries in the little sensors while they had the tyres off...
