Error Code Help: U023A & U1002 - PCS/LDA Errors

Had an LDA/PCS error come up after some heavy rain in Southern California.

Any Toyota wiz know what this is? 4Runner is currently at the dealership overnight and they're trying to solve it.

 

I’d let the dealership deal with it. I’ve never even heard of LDA/PCS. I drive a 2018.

 

LDA/PCS is on the 2020+ Its lane departure assist and Pre Collision system

 

Ok, thank you for explaining.

 

Thanks for posting these. Some of the electrical wiz would eventually chime in.
My traction / slip lights came up during a rainstorm last year but eventually when off next day.
No drivability issues

 

I don't claim to be a Toyota wiz but "lost communication" codes from multiple modules is indicative of a Databus problem. Possibly water intrusion into a related connector. I would start with erasing the faults, road test and see if the faults return. If they do it would be time to dive into the electrical schematics. These problems can be very difficult to find and repair. It's under warranty so your good. As it's a new truck let us know what they find or do.