To get out of help code. Hold button number 1,4,6 and push the power button. It will go back to sec. But now when you press arrow/scan up and number 1 it will say code 1. And then press arrow/scan down and 1 and it will now say code 2. I don't know the codes. the Toyota guy is lying when he says need to take the whole unit out. You just need the 2 codes now but they won't give you. .. not for free anyway.!