Faulty 12 volt battery + possibly nuked electricals

The "dude" screwed you; pardon the pun. There's a jump point under the hood. Depending on where and how he reversed the polarity; will determine what he blew up. Hopefully it's just a few fuses and none of the CPU's. The tow company is on the hook for the insurance claim. How it effects your new car warranty is what I would be concerned about.
I would also contact north American Toyota corporate to see if they can help. Lookup the BBB and yelp reviews of that dealership; you may be better off having it towed to another dealership for the required work.

Good Luck....

 

Walmart has them.

 

There are some pertinent anecdotes on other threads, including Prime 2023 12V battery integrity on EV | PriusChat. In short, the Gen5 12V batteries are of a new technology, and many of them have failed and been replaced under warranty. The replacements are scarce. FWIW, mine failed after 3000 km.

 

is there information on this new technology somewhere?

the same thing happened when the 2017 prime came out, many replacement batteries.

 

have you contacted toyota customer service?

 

If the boost came from Toyota roadside accessed driver, then I'd hope Toyota is still on the hook to help sort it out

 

that's about as bad a dealer as i have read on here.

 

I'm guessing it's a sealed AGM battery, since it got moved back into the passenger compartment of the car again. The gen4 was a common lead acid battery under the hood.
If you do a search on reverse polarity; I believe someone here had done the same thing and just blew a few fuses and a hidden fuseable link on the bottom of the fuse assembly. If I recall correctly....

BTW; this is the first time I've ever heard of a mechanic, much less a dealership try to turn a customer into a gopher - directing a customer go get the parts to repair a car that is still under THEIR warranty!! What the heck!!! The icing on the cake is, no loaner car? Has this dealer ever heard the phrase "customer service"? Granted this isn't a Lexus, Acura, Audi, MB, or BMW dealership, they should still offer you up something. Maybe a deeply discounted rental car; but that would put them under the gun to repair your car in a timely manner.

 

I know - it’s bad and a battery won’t fix it. The responsibility will be shifted to the guy who jumped it which will not be a dealer or Toyota corp employee.

Hope you have some documentation of who actually did it and maybe witnesses. The tow company will advise their employee to deny he reversed polarity.

 

Wow... Toyota can't find a 12v replacement battery for a brand new 2023 Prius? After the amount of money you paid for your car this is truly insane. You need an attorney to write a letter describing the damages they've caused for something that is their fault. Once the Stealership's lawyer reads your lawyer's letter things will change quickly.

But for the moment, they think they can just ignore you because they think you're young and obviously haven't been upset enough. If I were you, I'd be on the phone demanding to escalate to supervisor or owner every single day and I'd have my attorney filing a tort claim in federal court. If you put enough pressure on them and don't back down you'll start getting the respect you deserve!

 

It's essential that you present yourself as the kind of person that's well educated on how to deal with these idiots. You've spent a huge amount of money on a car that they claim they can't fix because of something as stupid as a 12v battery. They could easily put a different 12v in there once the manager of the stealership knows that you trigger cost them more fees from the Stealerships lawyer just to respond to your claim.

Sometimes if you have a lawyer who you're an acquaintance with they'll write a letter for $100... Also print up copy of state law related to selling a broken car... Looks like this law firm in your state specialises in this: Home - San Diego Lemon Law Attorney

Also before you go in file a complaint with the Better Business Bureau online, as well as have a plan to report this to your state attorney general. You want to go in there fully loaded with every administrative remedy and don't take no for an answer. Become a really bad day for them because they deserve it!!!

With the amount of money you've paid them a Lemon Law lawyer like the one linked to above will be eager to hit them hard...

 

Think of it as a theatrical performance... Perhaps interrupt them and say I'm calling the best Lemon Law lawyer in the state right now! And if they try to talk to you tell them to shut up because you're on the phone.

Most of all be very stern, but fair and kind so if your behavior is reviewed by a judge it doesn't come back to hurt you.

 

A friend of mine who got an XSE Premium in September recently came out of his house to a dead 12v and the car needed to booster, and seems to have been fine since. It’s been reported Toyota. I believe he said he is waiting on a replacement battery, but his car is still operational in the meantime.

My Prime has been fine, however, when I went on a short trip of about 2 hours two weeks ago,I arrived and parked, the switched the car to Accessory mode, as I had a 15-20 min wait ahead of me. Within a minute or two, I got a popular on the MID saying “Low battery”, which I can only assume with a failing 12v battery… so of course I immediately put it back in Ready mode and all was fine.

But there certainly appear to be issues with the Prime and the 12v..