Hybrid system failure at 158,000 miles, is this always a drive battery or inverter?

I’ll be OBDII testing before driving to the dealer.

 

You know, my first Gen 2 Prius would give me the incongruous “parking pawl engaged, move to level ground “ message, so I’m hoping when this over 6 year old battery started to fail, the Gen 3 computer freaks out as I just experienced.

 

UPDATE! At least in the USA, Toyota resolved a class action suit with a non-recall warranty coverage 15 year extension to 2035 for 2010-2015 Prius and 2013-2015 Prius V, serviced "on demand" if/when the : Hybrid System "Intelligent Power Module" fails, putting Hybrid drive line in fail-safe mode, and lighting up the dash AS I had IMAGED. Free replacement of this remove-able module, it is inside the Inverter casing, which then also gets that cooling fluid drained and replaced free. Diagnostic fees also waived. TEMPORARY REPLACEMENT ride (free loaner or cheap rental) VEHICLE IS NOT, repeat not, COVERED. Oh well, I was hoping. While ETA for this command module is unk at this time, Service mgr national search shows my need is one of just a handful in the country, so he's hopeful the unit is in stock in Corporate warehouse somewhere in the country and will arrive quickly, but details currently UNK, it might not even be in the USA. Basically, this unit notes a non-standard(higher) than normal voltage that could damage other hybrid components, including the drive battery, and shuts the module off, disabling all the hybrid parts. If other modules in the inverter are damaged by that voltage or heat, those are also free replacement. Recall notice attached, but remember, it is ON CONDITION of a failure, no preemptive replacements, only of failures. I got lucky with a reputable Toyota branded dealer, anyone else seeing this could easily lie to customers, say it was a drive battery or complete inverter failure, take it in trade for dirt cheap, then do free repairs and resell it for pure profit. But not this time. Feeling lucky, and until that's done, I'm getting a reasonably priced oil and filter change, tires rotated, and likely a failing rear wheel bearing rumble found and solved while waiting for the IPM board to arrive.

 

Yes, they told me about the class action resolution;I love an extension to 2035, that was a surprise. And clearly enough folks had this failure that Toyota made this extension, as in states like mine using the CARB pollution standards, the drive battery and hybrid system are warranted to 10 years, 150,000 miles. I'm at 158,000, but it is still, now, a warranted repair. Yeehaw!