I have a 2001 LS430 and out of nowhere tonight the moonroof opened.

It would not close despite many attemps. Then finally it did close, but only for a short period of time then it opened up again.

I couldn't get it to go back closed at all.

Later on the way home I attempted yet again, and it went part way closed, then started to close again. So I hit the switch and it stopped about 1/4th of the way closed. I pressed the button again and got it about 3/4 of the way closed, but it still is open.

I checked the tracks and saw nothing. Any help or advice?

Thanks.

 

Being a 2001 and do you use your moonroof alot? I would say it's a bad control button to be causing this. Secondly, how is your battery? I've heard of weak batteries causing some crazy electrical problems and gremlins to creep up.

 

replace the remote control battery first and see if it still happens

 

Try this: https://www.clublexus.com/forums/5195843-post5.html

 

I don't use the moonroof much at all. I don't even recall the last time I used it before this all happened.

The battery is also less than 6 months old, so I don't think that is the issue either.

The key fob battery?

Thanks for the link Stan.