Battery Replacement 2008 Fg Turbo Reversing Sensors

[hunty]

Just replaced the 5 year old original battery in my fgXR6T. I was having a/c problems and was told by a dealer that the old battery was the probable cause. After a new battery installed, a/c is working great, but now the reversing sensors are not. while the dash display comes up as expected(image of car etc), no warnings are ever displayed. All other electronics/ electrical's seem perfect, just this reversing sensor problem. Any suggestions appreciated.