Dealership transaxle fluid change nightmare

I have a 2015 Toyota Prius and it has 30,000 miles on it. I took it to the dealership to have the oil and filter changed and to have the transaxle fluid drained and refilled.

The very next day while I was driving to work I noticed that the battery was slowly losing capacity and would not ever charge after 10 minutes of that very suddenly I detected that odor of smoke and then the message hybrid system over he appeared in the car shut off. When I pop the hood smoke was billowing out. When you look at the engine compartment you can see transmission fluid all in the engine compartment

I had the car towed to the dealership that did the work. what do you think they may have done wrong and also do you think that driving a total of 25 feet with the overheat message on did any permanent damage. It did not look like the transmission fluid being hot what's causing the smoke, but it look like the inverter it's self was smoking.

what should I do? Should I trust this car still? I have never heard of such a thing I could have done this myself with no problem have you ever heard of a dealership messing up a simple drain and refill for the transaxle? I even explicitly told him to do a drain and refill.

All other fluid levels look normal and it does not appear that there a problems with the pumps because you can see the fluid have some turbulence .

 

I paid 19,900 for it used with 1500 miles on it. The cheapest priuses list for new are like 25,000. The only used priuses thy have are way more used than mine or are a lower year.

What would that process be? The dealership over the phone this morning said there is no way there service caused this, what can I do?
The vehicle is still under comprehensive warranty.

 

There is no transmission fluid on the ground, only in the engine compartment also. The inverted was smoking. Would forgetting to put the fill bolt on cause the system to overheat?

Would it cause permanent damage? How would I go about having them get me a new car or an extended warranty?

Also the dealer was able to start it after it stopped for 30 minutes. There are no codes as verified by myself.


EDIT: the dealer just called me and said it was doing this because they filled the gen 3 "gen 2" style, which caused him to put SIX quarts into the system.

Is this BS? He said he drained the excess and that it is good to go now and I can pick it up.

I don't see how a transmission can shoot fluid into the engine compartment when overfilled and hen just be fine after a proper drain and fill. What do you guys think? I hope my unnecessary preventative maintenance didn't just ruin my vehicle.

 

I did take pictures of the engine compartment but there isn't really any damage per say just that there's transmission fluid all over the place and that there was smoke billowing out. All components look normal to me.

I was talking to the service manager and the only thing he did for me was hook me up with a free rental.

he says the car is ready they won't be doing anything else so when I go to pick it up what should I be looking out for I do have an OBD reader and I can check system temperatures and the like.

Do you think it is possible to drive 18 miles with 6.5 quarts in the transaxle without causing damage? Do you think is even possible to get 6.5 quarts into the transaxle? Where could they have possibly even attempted to fill it up?

do you think if I have problems Toyota corporate will help out I have pictures I have the service records showing that they performed the transmission fluid change but I noticed it just says transmission fluid change 90 bucks it does not list the parts.

The service record they just emailed me specifically says that they overfilled by 3 quarts do you think if I keep this and a problem occurs that Toyota corporate will look at that? should I just immediately take it to another Toyota dealership?


Thank you very much for your help and reply so far this is one of the most knowledgeable car communities I have ever been a part of . Ps as far as I knew gen 2 and 3 use the same process.

Transaxle fluid change, a good way to shorten the life of your vehicle by 200,000 miles...

 

Do you know how to contact Toyota corporate?

 

That's what I'm wondering if there is some type of pressure relief valve or some other type of vent hoe that could spew the excess fluid. If that is the case then I could potentially see the overfill transmission spewing hot fluid all over the top and this potentially causing the inverter to be hot.

If that is the case then I am not nearly so worried about it. The hybrid system overheat message is what scares me the most because I don't understand how that could cause this unless maybe the fluid is part of the cooling system separate from the actual inverter coolant and then having too much in there somehow hurt it's ability to cool. The smoke and the hybrid system overheat message occurred at the exact same time

No error code appeared though I did see the red triangle, not even a pending error.

This just proves it to me once more and for the final time I cannot trust anybody else to ever do anything for me ever. End of story it is my curse