Help with dead car, please

2008 Prius with 199,994 miles. It's been running fine; no issues or indicators that anything was amiss. I parked it in the garage Friday night, looking forward to being able to snap a picture turning 200,000 miles on the odometer. . Yesterday morning I walked out to a Prius with no indication it has power to anything. No open door light, no smart key flashing on the dash, nothing. Hooked it up to a Power Tender. This morning, still nothing but blank. The 12v is due to be replaced (7 years old) but before I take it out of the car and try to find a replacement out here I want to make sure that's all it is.

1. Would the 12v fail so totally without any warning? Around these forums I'm used to a weakening 12v affecting other systems before it fails.

2. If you suspect it's something other than a simple 12v replacement problem, how do I get the car out of the garage and onto a AAA flatbed tow truck without damaging it?

 

Thanks for the replies. It's Sunday and the dealer is 45 miles away so I'll leave it until tomorrow morning before I call AAA just in case it needs to go there.

 

Thanks for pointing me in that direction. The local Autozones, O'Reilly's, etc. didn't show they had it in stock today and I'd have to wait until tomorrow. I normally avoid Wally World. Las Vegas isn't doable since it's 70-75 miles away but the Bullhead City AZ store shows it in stock about 10-12 miles from here. I'll get a ride over there when my wife picks up her prescriptions at CVS this afternoon in the Acura..

I knew I could count on you guys to come through.

 

Thanks for the tip but no luck at Wally World. The battery they carry in not vented and doesn't work with the smart key system. The guy in automotive indicated they they don't properly describe batteries on their website. He looked it up on their internal automotive info screens to back up his assertion I was looking at at the wrong battery for my car.

All was not lost. My wife and I went to Lake Havasu in her car and we had a really nice lunch date on the way back from the dealer. New battery installed and the car fired right up. All I have to do now is reprogram little thing like radio presets, windows and whatever else needs to be programmed.

BTW, for non-mechanics like me, the Axle Addict website has very clear and easy to follow step by step instructions.

https://axleaddict.com/auto-repair/How-to-Change-A-Prius-Battery-12V-Battery-Replacement

 

It was identical to the link with the same labels and all but it was not vented. Interesting, too, was that their battery selector in the store did not list a Toyota Prius for 2008.

Problems like that must come up often enough since the local clerk knew not to trust their own website and immediately went to other means to verify that what I needed was not the one linked to.

I'm just really happy that there were knowledgeable and helpful people all around including my wife, the people here at Priuschat, the clerk at Walmart, the people at Anderson Toyota ( a sales rep saw me carrying in the old battery and carried it to the parts counter while another carried the new one out to the car) and AxleAddict for the great installation directions.

Plus, we had a great lunch a Panda Garden in Needles just off the I-40. It's not big or fancy but the food is outstanding. It's run by a Chinese couple. He cooks while she handles the waitress and hostess duties. I think her brother is the busboy. We love it but don't get down to Needles very often.

 

No vent on the positive side. To tell you the truth I don't know if the one they have has a vent port on the negative side since I was mainly concerned with making sure the battery they had was vented where I needed it to be.