I bled that wheel cylinder, with help from my experienced brake bleeder wife, changed the other wheel pads and the brakes are fine now. I did'nt need to add brake fluid, I guess some was added by the previous owner so when I pushed the pistons back it made up for what was bled.

But that leads me to a question: what kind of brake fluid does this car take. The brake cap says DOT 4+.

I also noticed there's a sensor only on one wheel. I reused the old one, I'll buy a new one at my future convenience.

There's a brake service notice that came up that I thought would go away when I changed the pads. It still comes on but just when I start the car, before it would come on almost every time I used the brakes. I thought there might be something wrong with the used one and took it out but the notice still comes up. Do I need to reset it or is the car smart enough to know if the sensor is good and I do need a new one?