Product Description Chevy TPMS Relearn Tool with Battery GM TPMS Relearn Tool Chevy TPMS Reset Tool TPMS Programming Tool for GM Chevrolet Cadillac Buick GMC Tire Pressure Sensor Reset Tool EL 50448 With 9V battery installed: The 9V Alkaline battery has been installed in this Chevy TPMS relearn tool GM TPMS reset tool.So you can use this TPMS relearn tool for GM Chevrolet Cadillac Buick GMC immediately once you receive it, without any waiting and delay!Not like others without battery, first you would take time and money to buy a 9V battery from a shop or online.The installed 9V battery is Alkaline which has high capacity and can be used for a long time.Support 100 GM vehicles: This TPMS programming tool for GM Chevy Cadillac Buick GMC support almost all 12V GM vehicles.1Chevrolet: Aveo, Camaro, Caprice, Cheyenne, Colorado, Corvette, Cruze, Equinox, Impala, Malibu, Silverado, Sonic, Spark, Suburban, Tornado, Traverse, etc.2Cadillac: ATS, CT4&5&6, Escalade, etc.3Buick: Allure, Cascada, Enclave, Encore, Envision, Lacrosse, etc.4GMC: Acadia, Canyon, Savana, Sierra, Yukon, etc.When do you need this GM Chevrolet Cadillac Buick GMC TPMS relearn tool?1.When the TPMS warning light comes on; 2.After replacing the TPMS sensors for your vehicles; 3.Dashboard can't display tire pressure; 4.After rotating tires or exchanging summer-winter tires.Functions of this EL 50448 TPMS monitering system activate tool: 1.Clear the TPMS warning light; 2.Activate and reset tire sensors; 3.Make the dashboard display tire pressure correctly; 4.Simply test TPMS tire sensors if it is good.One-button designing, easy and simple use: This Chevy TPMS activation tool has only one button.Don't need car repairing knowledge and skills, even women and beginners can use this GM Chevrolet Cadillac Buick GMC TPMS programming tool to activate tire sensors or clear TPMS warning light at home by yourself in minutes.It is a good and friendly auto DIY tool.It is a helpful tire pressure monitoring system reset tool, GM Chevy tire pressure reset tool.