Try: PM3 Reversing System (
http://www.predatormotorsports.com/H...ectronics.html)
Now available for all Hummers! Finally you know exactly how much room you have behind your bumper. The PM3 reversing system digitally displays the distance between your rear bumper and the nearest obstacle on a readout mounted under the rear view mirror. With three all weather acoustic sensors you get an accuracy of +/- 2 inches. (PM3 reversing system is now available for all model Hummers)
PM3 Reversing System ($198.00)
Or: Attach plastic Fresnel sheet-lens on back window and turn the roof off road lights back wards for night view.
