Fangrui Product Details Function: Frequent Engine Shutdowns And Restarts Can Be Detrimental. After Installation Of The Auto Start Stop Eliminator, The Car Automatically Activate The Auto-off Button.the Default Setting Of The Cars Automatic Start-stop Function Is Disabled To Safeguard The Engine. Advantages: This Auto Start/stop Off Delete/disable/eliminator/canceller Device Effectively Addresses Issues Such As Automatic Traffic Light Shut-offs, Energy Conservation, Emission Reduction, Fuel Cost Reduction, And Improved Comfort. Easy To Install: Remove The Fuse Cover And Push Out The Middle Side Clamp. Remove The Wire Plug From The Button, Install The New Automatic Start Stop Device, And Reconnect The Wire Plug To Complete. Please Wait For 15 Seconds For The First Installation, Do Not Any Keys. Led Night Light Design: Upgraded Button Type, Equipped With Led Light, Plug-to-plug, Simple And Nondestructive Installation.the Button Pops Up, The Function Is On; The Button Pops Down, And The Function Is Off. Compatible With Vehicle Mod