Lisa S. 
2007 Toyota Camry Hybrid Sedan 4dr Sedan (2.4L 4cyl gas/electric hybrid CVT)
Same problem with GPS screen going black
 I also have the same problem with the GPS screen randomly going out.  It's in a relatively long line of issues we've had with the car.  From a quality perspective, this has been a much higher maintenance Toyota than our previous 3.  While I appreciate the fuel economy gains,  we've had problems with the indoor cabin air filtration system, brakes, air conditioning and now this significant NAV screen issue.  The radio also cuts out from time to time.  It seems like there's a malfunction in some of the electronic components or wiring. How that I'm out of warranty and not looking forward to this conversation at the dealer tomorrow. 