That's strange. i followed my directions to the letter and it activates the brakes and sets the steering to straight ahead.
Which radio are you using? Try also rebinding and doing the whole process from the beginning (bind receiver to radio then bind radio to receiver with the failsafe positions. I have also done it by turning everything off, holding the failsafe position and pressing both bind buttons as the units are turned on. It's almost impossible to do this by yourself but it is possible. Better yet, get a helping hand to turn on the TX and RX for you, in that order.