Wait are you saying if your 12v battery dies, unlike any other vehicle, you don't need a cable jump start because that feature is built in to grab energy from the hybrid battery? That's super cool if so! Is this unique to the Niro? I watched almost every Niro review video on youtube and NOT ONE mentioned this.
Also where is the 12v battery? Some video reviews say it has one some that it doesnt.
And I'm interested specifically in the PHEV details, not sure if that makes a difference from the regular hybrid as far as my questions above.
The batteries are compartmentalized. In the HEV version there's a 'reset' button that simply takes some of the high voltage battery power and assign it to the 12v system. It looks like in the PHEV it has the same basic feature but implemented somewhat differently since there is a much larger amount of charge in the high voltage battery to work with.
See pages H-35 and H-36 of the PHEV owner's manual (which can be found online....Google). It states several things including:
"The Aux. Battery Saver+ is a function
that monitors the charging status of
the 12V auxiliary battery.
If the auxiliary battery level is low, the
main high voltage battery charges
the auxiliary battery."
"The driver can activate the Aux.
Battery Saver+ function by placing
the engine start/stop button to the
ON position and by selecting:
"User Settings ➞ Other Features ➞
Aux. Battery Saver+"