reverse sensor warning

[djambalawa]

Hiya folks - been meaning to ask this for ages... ever since i went on a very dusty road my reverse sensor goes off everytime in reverse... and I figure that theres some dirt on the sensor confusing it... i did a bit of a search here but I couldnt find any good instructions on where to find it or how to clean it.. i saw a mention of the location being in some bumps in the back bumper but I've tried squirting water up there to clean that area with no luck.. any help appreciated! :)

[Jamo]

On a D3 there are four sensors. Each is visible. They are round black things. You can't miss them if you look closely at the bumper. Just give them a wipe.