2013 Prius v 12v battery dead

First things first. Did you try to jump start it? You may not need a battery. There are two easy ways to run a battery down, one is to leave the rear hatch slightly ajar, that will keep the hatch light on. I leave mine off at the light's switch for this reason. Two, did someone manually turn on a map light? They will then stay on and run the battery down. My wife and I have done both, jumped the 08 and 12 and have yet to change either. Most likely you have not lost your settings yet, the voltage was probably just too low for the electronics to start.

I will add a post with a procedure to jump from under the hood and another with how to check the voltage from your console screen.

 

Once a 3-year old battery has been run down for any reason, its dead. You might resurrect it again for a short time but it WILL leave you stranded again. Yes, by all means replace it but be sure to get the correct model battery for the v. The Optima is popular around here.
If you want to jump it just to get it from point A to B, one of those little "jump pack" deals should do it, just connect it to the actual 12 battery terminals which are easy to access in the right rear corner.

 

Jump Start the Prius V.

 

After returning from a 10-day holiday (without the car), we came back to find that the 12V battery had run down. Jump started it, and no problems since then. The current 12V battery is over 6 years old.

 

Display Radio Realtime 12v Battery Check
Prius v Display Audio Service Menu w Battery Check | PriusChat

I will agree to disagree, I have not changed my 12v batteries yet and they have been discharged, several times on the 08 and once on the 12. The 08 is now eight years old and the 12 is four years old.

 

The exact model Optima will be listed for you wherever you buy it. Just be sure it connects to the external vent tube.
I think its very cheap insurance against being stranded again. Here in the desert heat, batteries fail in the blink of an eye and are never reliable again. Been there, done that and never again. Even at $200 its worth knowing its OK. Besides, the new one will outlast the car. OEM batteries are crap.

I'll add that checking voltage is a completely unreliable indicator of battery health.

 

you can go to the optima website and select the correct battery for you model and year.

looks like a mo.# 8171-767.

elearnaid.com lists all prius V as mo.# DS46B24R not sure why the discrepancy.

 

If the hatch or any door is even slightly less than fully latched, that will run down the 12-volt battery within a day or two, even if no interior lights are on. In the case of the hatch, being half-latched is not at all apparent with the car parked.

 

if you hook up the new battery to the jump point under the hood with jumper cables, you can open the hatch from outside.

 

Talk about the school of hard knocks. Yes, buy the cheapest set of jumper cables from Walmart or the Dollar store (maybe $13) and jump the car! Or borrow some. The smaller the better. The car will start and all will be well. Then change the battery if you must. Realize this 12v battery is not "cranking" the engine, it's inside rather than under the hood and generally does very little because the engine's inverter provides all necesary 12v when in "ready" mode.

Frankly it's important that you know how to jump it because the average guy does not and Toyota specifically detailed how to do it in the owner's manual to avoid towing, crawling over the seats, etc. Really. And a light left on or a door ajar could mean the same thing a week from now even with a new battery.

Capri Tools 21082-UL Booster Cable with Storage Bag - Walmart.com

 

Cool your jets! I will go out and check mine for you. One time my cargo net (like yours) jammed the lock and nothing would work. Hopefully that is not your case.

 

I'd like to know how the dang latch works too. Do post if and when!

 

what latch?

 

Ok you have to move the silver "lever" to the right, pretty hard at the end and you will hear the latch pop. Then push the hatch up. My screwdriver is on the left. You need a light to see the lever.



From the manual:

 

maybe take some tools for 'leverage'. i suppose if the mafia stuffed you in there, adrenaline would take over.