I have a 5 door 1.6 'Life' hatchback.
Occasionally, I come to lock the car with the keyfob and nothing. I'll then spend a few minutes pointing the key at various parts of the car until I hear the click and the indicators flash. I assume this is just interference.
But I find standing there with your arm out, pointing it at different areas of the car, at diff heights, and diff angles is quite embarrassing.
So where is the receiver located in the car? I can then try the key as near that location as I can.