Attention: This products function is Close Stop Start Engine System, your car must have "A off" button,than can use. if your car haven't "A off" button, cann't fit for your car. Installation: Please turn off the power of the car before installation.Remove the panel with tool and connect the cable between factory socket and button socket. Setting: After installation, start the engine while stepping on brake pedal, observe for 3-6 seconds. Don't press the button. The button light will turn on itself. Then set the mode ! The mode switching method: The mode switching method adopts the 3+X method to switch. 1. Turn off the start and stop first, wait for more than three seconds 2. Press the start-stop switch three times in succession (after pressing it, the start-stop is turned on, wait for it to automatically turn off); 3. Immediately after the start-stop is automatically closed, press the start-stop switch three (or two or four times) consecutively, and then wait for the indicator to reverse. Then enter the automatic shutdown mode (or memory mode, for original-factory mode). Color:Black Material:plastic Package Contents: 1 * Automatic Stop Start Eliminator Cable 1 * Rocker