How to make sure whether the control box fits your car? Open your broken electric ride on car and check the control box. If the appearance of the control box is the same, this part should fit your car. The remote control and receiver establish a connection Ⅰ. The first use (or replace the battery) need to matching frequency Step 1. Install two AAA 1.5V batteries, (note the positive and negative polarity inside the battery chamber), and finally close the battery cover, indicator will flash indicates that the battery is installed correctly. 2. Press and hold car select button, until remote indicator light starts flash 3. Turn on the car power,remote indicator light wll be off,indicating the successful connection with the car.Release the button,now the remote control can be used