Features: The system is compatible with the original car electrical system and security system. Turning on ACC will automatically unfold the side mirror. The system can fold the side mirror automatically when the door is turned off and closed. The system can unfold the side mirror automatically when ACC off and door unlocked. Automatic folding/unfolding, effective anti-scratch and anti-collision. Universal car side mirror folding kits is a device that supports 12V car remote control function to close the side mirror (the side mirror will flipPEd down when the driver press the "lock" button of the original car remote) and when the driver start the ACC on the side mirror will open automatically (the side mirror will flip up when ACC is turned on). Overload protection, if the door is closed/open too often, the system will stop to fold/unfold the side mirror to protect the side mirror motor. Easy installation, no need to change original car wires and setting. Note: Before installing this system, please make sure your car has been equipped with the central door locking system, and please connect the green wire from the ECU with the lock signal wire with the keyless locking system. All cars can fit, but your car must have electric mirror folding function. Note: The price only includes Smart Auto universal car mirror folding system, does not include electric rearview mirror, you need to buy separately!