So I come home from Colorado and my check engine lights on for the first time since I’ve owned the car 😔 Code is p0500 I have been having problems on cold starts shifting into reverse and drive having too rev the rpm’s up to get it to catch but only when starting through the day it’s good…..Any ideas on what the problem could be???

 

https://www.clublexus.com/forums/gs-...0500-help.html
Scroll down for a detailed description.
Same engine/gearbox as the LS430.

 

brother did you ever figure this out? I’m having the same issues

 

If you look up their public profile, you will see they have not logged in since November 2021. I would go with the link BigBoomer provided above.

 

With me years ago the not going in reverse ended up being the battery. Changed and problem never came back.