...okay, so both the right and left back up lights wont light up. I assumed the obvious and have changed both of the 10 amp red fuses under the hood and have replaced both sets of bulbs after cleaning and brushing the light sockets for corrosion. Still no lights. The back up sensor still beeps and we have brake lights so it leads me to believe it may be another fuse somewhere. Perhaps one of the larger ones. Again, it's only the backup lights that have failed...suggestions?