This is the absolute only way! I’m reposting from Anonymous’ post 1. Make sure the switch on the car is in the 'off' Position (The middle position) 2. Insert batteries into both the car and they remote 3. (This part may need a second pair of hands, but it's possible to do by yourself) With the remote in hand and the car close by, hold the Green 'Go' button and blue ' reverse' button down, together. Remain to hold down the buttons until the red light begins to flash off and on. 4) (Here's where you may need a helper) While continuing to hold the 2 buttons down on the remote, turn the car to the on position. 5) Now release the buttons on the remote and press the 'MT' button in the middle. I just tested this and it worked on both cars for me.