i tried everything in the guide as well even working my way up to ridiculously high numbers on the car.def emmissives however by chance i spawned in a vanilla gta v police vehicle and those lights are not dim what so ever, its only with vehicles i put in that prior to this happening worked fine even tried reinstalling them all in the latest patchday, im honestly on the verge of doing a file integrity check and starting over from scratch and seeing what happens. this sucks. no one seems to be able to help with whats going on.