I think the red key is for when you lose your key, that is the back up key to use to start the car, and it also means that if you found your original key, you can use it, as it's been reset by the red master key.
I think the red key is for when you lose your key, that is the back up key to use to start the car, and it also means that if you found your original key, you can use it, as it's been reset by the red master key.