Point me in the right direction on potential HV Battery issue

Congrats on the purchase!

That is a tough one.
Without knowing the codes, it may have even been a fluke or his 12v was possibly on the way out.
Low/dead 12v can cause serious complications on Gen3 prius, unfortunately not sure I heard it much on the "c"
But never know.

You could possibly invest in a Dr Prius app install and a Panlong obdii bluetooth device to run the tests
and see battery health with voltage readings etc.

panlong

I paid I think $10 for Dr Prius few years ago, I think it may be around $12-$15

This combo or Torque Pro, Hybrid Assistant or a few others may get comparable results on batt health.

In my humble opinion I would do my best to prepare for the drive and learn as much as possible on the battery
that is in it and then set up if there was a problem along the drive.
That may be securing a BRAND new (not used/rebuilt/refurb) HV battery to tote along or even replace before leaving to your daughters.
That way she should be all good to go when she receives.

Good luck!

 

how many miles on her

i would talk to houston hybrids

hometown-hybrids-houston-2

or texas hybrids for some timely advice.
texas hybrids /

 

I would not just replace the battery. A lot of other things can cause that light to come on. Water pump inverter pump come to mind.

 

NewPriusBatteries

I do not see any c listed, but this company has a presence on the pc site here.
I have not kept recent on them, but well reviews.

Many do have good remarks on refurbs, but if you are a DIY'er then best to "wack a mole" yourself to save even more money.
and save down time from refurb companies having to switch out with warranty replacements.
The only reason I mentioned new is since the c will be not in your possession, so buy once, cry once.

@PriusCamper is a master at rebuilding HV batts (along with some others) that can give more details on the DIY approach.
Many, many, many threads here on testing and grid charging the individual modules.

Hybrid battery diagnostic and repair tool for Toyota and Lexus click on the OBD2 to buy, and while it is a bit fumbled site, there are some others listed.
I just mentioned panlong since that is the only I purchased and know it works.
( i just ran a health check on my c on monday and tested 71% "good" health)

 

Lol, master at rebuilding batteries on the cheap with only $1K in gear is not saying much when the true masters require $15 to $30K in lab grade gear. As in I'm just another cheapskate hack who may or may not lead you in a viable direction. If you really want results, use my affiliate link for advanced Lithium packs for Prius: https://projectlithium.com/?ref=9qLPw

 

If you want/ need reliability and the car isn't going to be nearby, then the best recommendation is to to replace the HV battery with new. OE, newpriusbatteries, or (DrPrius) lithium- your choice.

Refurbished batteries are a crapshoot- might get 2 years- or 2 months. Getting any warranty repair done in another state could be a problem. DIY repairs will have similar concerns (but no warranty). Some here have had good results, others play "whack a mole" until they give up.

Another option is to (try and) find a decent non hybrid like a Yaris, Civic, or Corolla. Generally have fewer potential concerns as they age vs a hybrid and more shops will work on them.

Posted via the PriusChat mobile app.

 

This is simple.

You already decided that the car would be good even if it needed a battery.

Prius c batteries are generally pretty used up after 10 years, especially in warmer climates.

I am assuming that it will be easier to change the battery when the car is near you, and you've said you intend for the car to mostly be away with your daughter.

If I were in your shoes I'd be planning to replace the battery.... PLUS whatever is revealed by thorough troubleshooting of the currently stored codes. And no, I wouldn't order the battery or anything until that troubleshooting were complete, that's just letting yourself get too far ahead.

Good luck!