Not sure if this thread is still active, but It's 2024 and nav is still a problem in my 2018 Prado. I paid for an update, but I haven't noticed any difference, maps are still out of date. I tend to use my phone, but I would prefer to use the existing screen. I think you're right, if enough of us complained or cared, maybe something would be done to improve this problem... we are customers and we paid well for it! Hopefully we are not a dumping ground for old tech!