I haven't noticed any unusual triggering. I always get a warning backing out of the garage until the rear clears the door opening but other than that it has been fine. I have heard of people painting the sensors to match body colour when colour matched sensors were not available. Apparently there is little difference in effectiveness. I have black ones too but they blend well enough with my car's colour that I don't care.

Two climate control systems, one inside and the other at the tailpipe.

2007 Camry Hybrid (in service June 2006)
FE: 6.67L/100km or 35.3 mpg (6.11L/100km or 38.5 mpg in summer)