I used an Amorall cleaner wipe across my dashboard the other day & without realizing it, wiped the clear plastic screen thru which the instument panel projects. I didn't have the car on when I did this. The next day, when I turned it on, it was hard to see the screen- it was all smeary and I couldn't get it off. Toyota is going to replace the screen for free this time- bless them. But be warned- use nothing but water on the screen!