TPMS Relearn Tool for GM Tire Sensor, Automotive Tire Pressure Monitor Sensor Activation Reset Tool EL-50448 OEC T5, System Programming Training for Most GM Series Vehicles, Car Accessories.

Arrived day after ordering it along with a battery (don't forget the battery - old PP3 type) and put it to use in my wife's Corsa which even after having a new TPMS Valve fitted in her wheel/tyre, still kept showing the amber Low Pressure indicator on the dash as well as constantly saying Service Tyre Pressure system. Pain in the bahookie - MOT garage failed it and fitted the new valve but didn't have the Re-Learning tool. I bought it on Amazon for less than a tenner, put the battery in, set up the re-learning system as per car's manual, took 3 minutes to do it all. Job done, winner winner, chicken dinner! Saved myself a possible £60, perhaps £120 at a dealers. Worked first time.Edit: Just thought I'd run through the process in using this to re-set the TPMS system.Use the menu button and the turn wheel on the Indicator stalk to get to the tyre pressure page on the wee screen on the dash behind the steering wheel - once you have all the tyre pressures shown, you'll probably have one that doesn't show anything but dashes, if there has only been one valve re-installed like ours was. On that page, hold down the button in the end of the stalk until you get "Activate re-learn system" and the wee orange tyre light will start flashing. Get out of the car and starting at the front left hand or passenger side tyre hold the tool to the tyre just where the valve is and hold the wee white button - it should flash for some seconds then when set will stady and the car horn will beep once, that's to show success. Now move to front right hand side or drivers side and repeat the process, moving on to right rear and then left rear until all the tyres are re-set with a double beep of the car horn. Once inside the car you will see all the tyre pressure have a pressure number, usually P.S.I., and the orange light plus the "Service Tyre Monitoring System will no longer be nagging you. Job Done - a great wee tool.

Perfect!! Got told the same old drive for 20 mins to calibrate the tpsm sensors and nothing happened, looked on Google spotted the reviews and can say I glad I bought itBought new sensors for all tyres and was worried about it failing my mot with this relearning tool is soo quick and easy to use was done in 5 mins and the tpsm warning is off the dash now, WOULD HIGHLY RECOMMEND!! the frequently returned is probably people being cheapskates sending it back after using because its that easy

Worked well with my Astra K. I put my car in learning mode, it was cool to see the car lights up your indicator for what "corner" it wants to do next with a short horn beep when it had been done, with two horn beeps from the car when complete. Just put the device next to the tyre valve stalk and press the button, so easy. As title of review... Yes, it didn't work at first as no instructions explained that you need to drive for about 5+ minutes to wake the sensors up before they can be programmed.

I used this to learn new TPMS sensors for a September 2015 Vauchall Mokka. I simply pressed the button with the aerial over the rubber tyre close to the valve and the car in learn mode. Then I repeated for the other wheels. On the Mokka, you have to do this in a specific order Front Left, Front Right, Rear Right, Rear Left.Very happy that this worked because two garages were unable to do this for me.

Works well on the Vauxhall, lots of videos on you tube showing you how to set it up.

This didn't work for our Ford Fiesta. Apparently it is only for GM cars. We bought the EL-50449 and it worked perfectly.

Walk to use on my Ford focus. However, it is not compatible with Ford products. You need the grey one with a green button. But when you get one, it works in 10 seconds easy

Purchased for Corsa , initially could not get to work but once i positioned it correctly it worked well. i found that gently pressing the tip pf the antenna part against the tyre sidewall next to the valve was the way to go.