Hey again folks.
My Cinquecento today pranked me again. Last few times I driven the car, first time I turn the engine on, the key light won't disappear but car would turn on. Me being scared of that I would turn the engine off and turn it on again, and the light would go away. Car stoped for 1 day, when I was about to start the engine, it simple wouldn't start. It just rolls and rolls and rolls, but never start. Then I used my other key, and the engine turned on. I have 2 keys, a brown key and a blue key. The brown is bigger than the blue and they're the factory keys. So can anyone help me? Will this start happening with the blue key too? Thank you.

The brown key is the Master key and should always start your car.

Hello. Yes, I'm aware of that, that's why I posted this, if the blue key failed I would be less conserned, but the master key is failing. The problem is that the car sees my master key as a non coded copy. I don't know why, and I'm scared of the same happens to my blue one.

alfacool said:

The brown key is the Master key and should always start your car.

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You should have two blue and one brown key.
The brown key is for emergency use and programing only.
Blue keys are for normal use.

cc1 said:

You should have two blue and one brown key.
The brown key is for emergency use and programing only.
Blue keys are for normal use.

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Hello. When I bought the car, it only came with 1 brown and 1 blue. What do you mean? The brown key it's only for programming other keys? Meaning it's not meant to use daily? Is any chance I have de-porgrammed somehow?

N.