It ain't rocket science either, if they can't change it then give it to someone who can. Or leave the car at home until they work it out.
Don't just keep driving round without the right compliment of lighting. Its dangerous.
The general quality of driver these days has gone down the swanny.
Thing is, with modern uber bright headlamps which totally overpower streetlamps and leave pools of shadow around them, driving on a single light can cause even more issues than it ever did in the past too, which few seem to think about. Only a few weeks ago the car in front of me moved over to pass a cyclist on a lit but oddly busy, nadgery kind of road [lots of roads signs, markings on the road, etc and some distance between street lights ] and only narrowly avoided a car coming the other way with its offside headlamp completely out, not even a side light working. Obviously I can't be sure, but I thought from a distance it was a bike, so I guess there is a good chance he did initially which gave him the couple of feet he needed to allow the cyclist space... or not as it turned out. Luckily the cyclist was a Highgate Housewife pedaling very slowly, one the lycra lout crowd might got caught up in it.
However, seeing as we are talking about being seen, can I have a mini rant about pedestrians, especially at this time of year when it's dark during rush hour. For the love of god will you please wear something in which you can be seen!! if you MUST wear a dark wardrobe, then accessorise with a pale coloured scarf and /or hat or something, so that when you decide to run out into the traffic without using the crossing, we at least have a chance of bloody well seeing you with enough time to stop. I am not being racist when I say this doubly applies to those with dark skins, because you don't even have the advantage of headlights catching your pasty winter white face. We go back to the modern bright headlight/dimmer street light problems, it creates huge contrasts for drivers and shadows into which pedestrians just melt and vanish. Oh and also remember [maybe this is a london thing due to there being a high number of non drivers who simply don't think about it, or perhaps simply a national lunacy] when the road is wet, or icy, we can't stop as quickly, so don't expect that we can when you make a dash across the oncoming traffic - the best drivers in the world cannot defy the laws of physics, so stop expecting that normal drivers can just because you think you can make them stop by just dashing off the pavement.
/Rant off