I’ve got a Peugeot 306 Meridian V reg. I’ve had the car about 4 months
and everything has been working fine until recently when I had a bit
of shunt from behind. Only a small incident and didn’t do much damage,
slight damage to bumper and a kink in the exhaust.
About a week after the incident my key stopped working. I mean that it
didn’t open the doors remotely. I’ve assumed that it could only be the
battery in the key dying, but I haven’t had the chance to change it
and see. Only today I’ve discovered something else. In the past when I
left the lights on, took the key out of the ignition and opened the
door, the car would give a loud alert warning sign to signify that the
lights were on. Today I noticed that it doesn’t do that anymore.

I don’t know what the problem could be and if they are related or not.
I kind of assumed that they may be.