Lexus UX Fault Memory Lock Active

Sounds familiar. I had something similar happen with my old Peugeot, although not electric. The error kept popping up, and it turned out to be related to undervoltage somewhere in the car's system. Were you having any other electrical issues before this started?

Undervoltage, huh? That's interesting. I haven't noticed anything else acting weird, but I guess it could be subtle. Did your Peugeot throw any other codes, or was it just the locked memory thing?

Just the locked memory. It's like the car's computer system was having a brain fart because it wasn't getting enough juice. Best bet is to get it checked out at a workshop, they should be able to diagnose the exact issue. It cost me around 240€ to fix back then.

Thanks for the heads up! I'll take it in and mention the undervoltage thing. Turns out it was a faulty control unit due to undervoltage like you suggested. Cost me 240€, but at least it's sorted!