after sitting in parking lot rear shade will be up. no one in car just sitting. when rear shade is up should go down when reversing but after auto deploy have to push switch to go down. if we put up with switch then curtain goes down when in reverse. must be a short somewhere to work on its own. they tried to fix by putting hair drier on it but could not duplicate problem. again Toyota service doesn't seem to concerned about fixing problem, neither does vandergriff Toyota.

Dealer says he cannot fix unless the problem occurs while he has the car!