Specifications：Hign-concerned Chemical:None：Special Features:Start-Stop Closer：Item Diameter:3.5cm：Item Weight:0.1kg：Item Height:2.2cm：Item Width:2.2cm：Item Length:6cm：External Testing Certification:iso9001：Model Name:For Jeep JL Wrangler：Year:2018 2019 2020 2021：：Origin:Mainland China：Item Type:SWITCHES：OEM NO.:For Jeep JL Wrangler 2018-2021：Material:ABS Plastic：Automatic Start-Stop Module Engine Closer Auto Off Cable ：Fit:For Jeep JL Wrangler 2018-2021 ：Condition:Brand New ：Easy installation.：Attention: This products function is Close Stop Start Engine System, your original 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 red itself. The default setting is that you don't have to close the stop start engine function manually every time. If you want it for a moment, press the off button to reactivate the function.：Note:If you are unclear, please contact us to help you confirm and check before purchase.