2008 Prius with new 12 V battery won't shift; lots of warning lights

That is the high voltage hybrid battery.
It was NOT intended to be "user serviceable".......at least not by your "average" owner anyway.

 

Good pictures of the hv battery Suzi.
Good news is that's the updated battery part number from the stock battery so it's probably a brand new battery in there. The pic I need was the one that said
BATTERY ASSY. G9510-47031
That's the battery part number. The stock battery was a 47030 I believe.

Only way to be a 100% sure is pull the pack open it up and check the date codes on the battery modules themselves. Wish I was there a drive in the car would tell me immediately but that's looking very good.

To bad I was hoping the HV BATTERY was bad. But to be perfectly honest with you if it was me I would still spend the money and confirm. Because you can sell that car in its present condition for a lot more money if it really does have a new battery in it. That adds $2000 to that cars resale if you decide to bail. But a buyer is going to want definitive proof it really is a mint hv battery. And that means pictures of the battery modules themselves.
The cover needs to be removed and good pictures of the battery modules and all the copper connections.

The alternative is a transmission winding leakage investigation. That's not easily done by a mechanic it takes what's known as a megger to measure the 3 motor windings for leakage to chassis or another phase. And removing the trans fluid and see if it's burnt. That's not always definitive as the fluid has no interaction with the motor windings. But fluid investigation is cheap and easy.
That would be the next step as it's looking like it's not the battery.

Confuses me why the dealer didn't mention the car has a new HV BATTERY as part of its sales
Routine. A new battery adds years to a Prius life. It's expensive to get a new battery replaced like $4000.
So the car is well worth putting $1500 for a new trans. But I would make sure.

 

Also your pictures were all a little foggy like the lens was fogged up. Next pictures will be important so make sure they are clear please.
Thanks.

 

you are over your head suzy, i would refrain from further investigation mechanically.
start searching for independent shoppes who can help you. 200v DC is not a trivial thing, and can be deadly, if not handled carefully.
mini vci can also be complicated, and there are many threads here from people unsuccessful in making it work with their laptop. or even in how to use it properly.

 

Well her brothers got a battery guy. Maybe he can take the battery cover off and take good pictures for her.
She may want to bail and sell the car. Anyone buying a broken Prius but it has a new battery is going to want proof. The battery alone is worth $2000. If it's mint inside.
Not asking her to rebuild the battery herself.

 

There's an alternative to the mini vci it's a VXDIAG. It's pretty plug and play. It plugs into the OBD port and then has a USB Plug to your pc.
I have one. Works good.

Just google VXDIAG FOR PRIUS. $75 but everyone needs a Scangauge for its form factor.

 

Good. STOP.

The exterior photo is enough. Here's photos of my original and then the new replacement Toyota battery (cover removed for inspection). The stickers and placements of such are different enough to tell your car has a new one (plus the part number and the repair history from the Toyota owner website).

 

well, I can tell you the battery is newer, the original didn't have all those warning stickers..... and yes you can get hurt screwing with the high voltage so DONT DO IT.. sadly its easy to clear the error codes and no lights will come on for a few days or weeks, just long enough to sell the car and screw someone over.. theres no point is buying new parts for it, the labor will be about the same new or used.. in all honesty Id cut my losses and try to trade it in while the lights are off. after this you will get the ABS brake issue sooner or later and thats another $3000 to fix if you cant get it done under the extended warranty... that ends at the end of this year..

 

Not sure why everyone is cautioning her about high voltage its not like shes going to take the cover off herself and start digging around in there.

Her symptoms do not seem like a bad trans axle.

But having a new hybrid battery is awesome its worth alot of money and worth going forward and repairing the car.

 

Thats great. Thanks for posting. Now you must keep the car! Lol...With the new battery well worth keeping the car its the toughest little car on the road and will last forever if properly maintained but at its age the battery gets you. I bought mine new in 07 and its been a fantastic car nothing really has gone wrong with it. My wife loves the car as a around town car it cannot be beat. The hybrid battery started to show its age but you can buy an outboard charger for it that works well so I have been charging it and it helps.. But you wont need one of those for at least 10 years!!

 

without getting a list of error codes from the dealer or someone with the techstream program there no way of knowing whats going on..
the brake light could be on if the 12 volt battery is low, you will know the ABS Actuator is bad if you hear the pump cycling on and off when you first get in the car as it tries to build pressure. mine went out at 156000 miles and was covered this month..... again the error codes will tell you if theres a problem and that code and the vin number will determine if the repair is covered..

 

Why not, I did that awhile back. Sometimes, now I get some random muscle "jerks and twitches," but other than that....And, my battery looked fine.

 

Typical ABS actuator leaking symptom is periodic low level buzzy sound under the dash even when no braking action has been applied recently.

 

i think we are proceeding with caution because of this post. seems reasonable to me, rather than asking a novice to diagnose and repair their own car.

 

If it's a transmission I'd personally have some local ASE shop put a used one with less miles into it. They don't go for more than $300-$500. Labor would be the most expensive part. Everyone I know with Priuses have 100k-300k on them with little to no issues. Actually I would probably tinker with it with some friends myself over some beers and pizza. I've got all the tools available to me, but that's just me.


iPhone ?

 

road trip to alabama?