Just got dreadful ABS warning light and parking break light.. Looks like it's here to stay permanent in 2018. This started is exact 48 hours after simple oil change trip to local toy dealer.
Just got techsteam so will be reading codes as standard OBDII not showing codes. I am hoping it's 12v issue but it not likely.
If you've read enough threads here to call your new one "Another" brake ABS/VSC lights, you've probably seen you can get brake codes by counting dash blinks, any time you're caught without ready access to Techstream. Of course if you do have Techstream available, that'll work too. -Chap
12v battery checks out when Prius is turned off: when Prius is turned on: Next check tech-streamer with laptop
Easy way to apply a load for a more meaningful reading of 12V battery SOC. Is my inverter coolant pump slowly failing? | PriusChat Post #5) How to apply a load. Post #8) State of Charge chart, AGM compatible battery chargers.