Parking brake question

Well, with the Gen 4/Gen 5 Prius/Prius Prime HEV/PHEV, the problem is not the size of the size of the battery but the fact that the 12-V BMS does not fully charge the 12-V battery. It likes to keep it around a 75% SOC, but since it is buggy, this could drift down much lower.

Regarding CCA, this was discussed before. The CCA on the OEM battery is reported according to the EN standard. The equivalent of an EN CCA of 285 A in the older CCA standard is about 470 A.

2024 PP XSE 12v aux battery warranty replacement by toyota dealership | PriusChat

2024 PP XSE 12v aux battery warranty replacement by toyota dealership | PriusChat

 

This is my thought as well. I recall many times over the years that when spring came around, my mechanical EPB was frozen/seized. I don't care what the "Car Care Nut" says about electric parking brakes...it sounds like an expensive fil if it seizes and doesn't release. lol

 

On the other hand, exercise may be good for it, lol.

 

It works in our 2024 Corolla Hybrid. Start up the car, push down the parking brake button for about 3-seconds and the display will let you know it's been disabled. Hold it up for 3 and says it's activated. I love that thing but will, probably, have to use my scan tool when she needs a rear brake job BUT she's a Hybrid so probably won't need a brake job for at least 10-years....our 2017 Prius is, still, on the original pads and were at 6mm last time I checked.