[Discussion moved here - Michelle]Michelle, I have a Tire Minder system I have been arguing with for a few years now. Allot of random "no signal" pop up's. replaced allot of sensor batteries and a new signal amplifier. Finally took the advise from one of the Tech's at Tire Minder and check each battery for voltage before installing for at least 3.2 volts. I have found many new ones are less and many are only good for a couple days. Go figure. Has taken about 1200 miles to get good batteries in all 12 sensors replacing at each stop! Jim.