Main Battery light flashed briefly while braking when exiting highway in neutral.

And finally, the last piece of the puzzle I was just reminded of by my wife was:

The last time I brought it to the dealer to inquire about this whole mess they also told me I would need to show it has a clean title or hasn't been in any accidents. It has in fact been in a small fender bender and has a dent left on the driver's side to show it, but afaik I'm pretty sure the title is clean. However, since we are still paying the bank back for this vehicle, I do not have title in hand and am not sure how to go about proving my Prius has a clean title to the dealership. Is this standard procedure for all dealerships to require this?

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No worries, my memory is awful too when it comes to remembering specifics. Lol.

I saw that clause too when reading through. Luckily I have a TON of dealers to choose from between East Bay and SF that I pass by daily. If the local one close to home really doesn't want to work with me then I will definitely be looking elsewhere.

Thanks a lot for your time and info on this thread. Feeling a bit more assured I will get this fixed sooner than later now that I know I have options. I am generally pretty hands on DIY but my time is more valuable than ever these days and it'd be easiest for me to just let Toyota do it... If I can find a reasonable dealership that is.

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I check my oil daily as this damn thing consumes around 1 quart of oil every 1000+ miles. It started consuming oil around 100k mi I think... either that or I just never noticed it when I first purchased the vehicle orrr it could be I used to drive it much slower than I do now. I have a small theory that my oil loss may be more related to high speeds, engine rpms, and engine air speeds, but I haven't got the time or desire to thoroughly test and compare all the data. Unfortunately, mine is not the first Gen 2 I have heard of exhibiting this behavior beginning aroun 100k mi. I have tried a couple of flushes and cleaning treatments, but at this point there probably isn't much I can do besides keep on top of it.

I just scheduled my appointment with the dealer in the next closest city with much better reviews than my local Toyota dealer. I will have the PDF referenced prior printed and in-hand to help them if needed.

As it turns out, I finally got my mVCI (driver version 1.4.7) off the ground with TSv9 and got into all my Prius's goodies.
I have the following codes:

--B1271 [Combination Meter Failure]
------------ this one is obvious

--B1421 [Passenger Solar Circuit Malfunction]
------------ I'm not too concerned about this one based on what I have read.

--P1121 [Coolant Control Valve Position Sensor Stuck]
------------ another common issue on Gen 2 Prius

--P0420 [Catalyst System Efficiency Below Threshold (Bank 1)]
------------ which I suspect is related to my car's age/mileage and its love for oil

It is my understanding that both of these faults should be able to be repaired by dealer under CA CARB 150/15 Warranty since they fall under emissions parts- correct?

I still have more research to do before my appointment tomorrow but any input certainly welcome.