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I own a 2010 C4 Grand Picasso. I have two key fobs, one of which is doing strange things.
I can open, lock, turn lights on etc, but after driving the car and getting out the remote fails to work at all.
If I then use the other key fob to open or lock, then the faulty one starts working again until I go for a drive!!
I doubt it's the battery as it works fine after I use the other key and then use it again.
Any ideas what might be causing this or how I can fix it?
You can always try and change the battery, even if it appears to work at times.
It is probably the only facet of a fob key that we humans without programming devices can control
