Have Toyota Questions? Ask a Mechanic for Answers ASAP
Thank you for trusting us with your questions. When you enter the vehicle and put your foot on the brake, do you see the green light come on the start button? Was the battery disconnected when the alternator was being replaced? Any chance at all the battery positive got shorted to a ground, even for just a second?
OK, step out of the car with the key, lock it wirelessly, unlock it wirelessly, then enter the vehicle. On the key, there is a Toyota emblem on one side. Place that emblem right up next to the start button. Wait a second, then depress brake pedal while still holding the key next to the button. Press the button and see if it will start.
If thats the case, its very likely something shorted in the process of this repair. It happens to all of us from time to time. Let me know if that doesnt get it going and we need to dig a little deeper.