Premature S70 tail lamp failure

I too run a 98 S70 and over the last few weeks have discovered something.

I was getting the bulb out warning quite a bit for my tail lights and changed the bulbs each time. Then I got the warning on the dash again which turned out to be a bulb that I had only changed about a week before.

Upon closed inspection, I found that the bulb had worked it's way loose and hence was not making contact. Every single bulb failure warning since has just required the bulb reseating.

So next time, before you actually change the bulb, make sure it is actually in the socket correctly.