TPMS Relearn Tool Tire Pressure Monitor Sensor Activation Tool for Training OEM TPMS Sensor

This tool works easily and well. The only drawback I noted was difficulty making out the battery type. There is no "manual" provided and the battery type designation is molded inside the battery compartment into the white plastic--with the characters also white. Very tough on my old eyes even with magnification.Battery type is a 23A which is not included and needs to be purchased separately.Simple to use and fast. Took all of 15 minutes to inflate tires, enter retraining mode and reset the tire sensors.

Came in a bare boxy with no instructions at all. I've found two radically different procedures for my 2012 F150 on the net. Maybe one will work.I think the empty compartment in the thing is for some kind of personality module or else they simply glommed onto a random chicom case to to put the electronics into and ignored the "battery opening"Follow-up after use. The "battery compartment" that others have complained about is for nothing. I X-rayed my unit and found a small cell inside the unit.The procedure in the manual does not work. Apparently only for Ford OEM sensors. There are two or three other procedures on the net. Only one worked. I googled "Ford 2012 TPMS programming solution". This sensor requires an external programmer. I think mine was about $25. I think that all it does is turn on the reed switch in the sensor but I'm not sure. Amazon won't let me post a link to the correct procedure. It involves turning the key on and off 3 times, pressing the brake pedal, turning the ignition on and off three times, resulting in the switch remaining on (I'm probably forgetting something so google it). The horn will beep.From there you have 2 minutes to do all 4 tires. Hold the programmer parallel to the valve stem but on the rubber. Press the button. Usually the horn will beep once, indicating success. If it doesn't, let the programmer turn off and try again. All 4 of mine hit the first time.Run to the next tire and repeat, then repeat for the rear tires. Starting on the front driver's side and proceeding clockwise to the passenger side, the rear passenger side and finally the driver's rear. If successful, the horn will beep twice and the data display, if your vehicle has one, will display "programming successful".Understand that this is for the Standard parts TPM116A TPMS. A similar procedure should work for other brands. You MUST purchase a per-programmed TPMS. The non-programmed sensors require an expensive programming tool to program the TPMS to the particular vehicle. The thing to look for when buying sensors is "no programming required". One still has to have the sync too. but the vehicle's parameters are per-programmed into the sensor from the factory.Optional last step. Turn the switch off and back on. The data display will display "programming successful". After that, no more TPMS messages.As far as the programmer "battery compartment", it appears that the ChiCom manufacture bought a conveniently sized case to put their electronics in.. On the X-ray, I couldn't discern any wires going to the contacts. in the "battery compartment. Now that my programming was a success, I'm going to take it apart and really see what's in there.I upped the star rating to 4 because it worked. It lost a start because of the shoddy construction.

Bought for a 2013 Ford F-250. It came with instructions for a Ford and worked beautifully and easily with the instructions.

Excellent replacement for the original tool. Works flawlessly. Used it on a 2008 Ford F150 Lariat.

Not very good

Did not come with a battery and none sold locally to fit it.

I liked how fast they got here