Navigation Update Issues

You might want to disconnect the 12v battery for a few minutes. This will reset all the systems in the car. It's possible the update left some bad data in memory.

But in general, now that your car is seven years old, it'd be wise to switch to Apple or Google maps, which get updated in real time based on traffic congestion data and construction projects, which is way more reliable and safer than an old car's map system.

 

The 12V is under your hood on the driver's side. You want to loosen the nut holding the negative terminal (the one on the right of this pic, not the one under the red cover) and rotate and lift it straight up. Then I would lay it on a rag so it does not touch anything while you are waiting. After your delay, as quickly as possible, place it back on the post. You might see a spark, especially if you are slow / clumsy putting it back on, but this should not cause a problem. Then re-tighten the nut and you're good to go. You will have to reset the clock in the car after this procedure, but everything else should be okay.

 

The 2017 supports neither Android Auto nor Apple CarPlay.

 

So does this mean that if I have a 2017 Advanced (with the large screen) that I cannot get an updated SD map card from Toyota, and third party is the only way to get a map update (or just use Google Maps on my phone).

 

So I've been looking for a way to update my 2017 Prime Premium, which also has the 11.6 display. The cards advertised on Amazon, as far as my research tells me, do not work with the 11.6 display, and we need a "86271-GN8PR" card. But I've found no source cheaper than Toyota (generally $200-$220).
Instead, I'm considering an Android Auto display to keep in the car, but figuring out how to place it without interfering with other things. Maybe even just stick it right on the 11.6...