Brake indicate, abs, vsc lights never come on

I'm new here, just bought a 2006 Prius with the hybrid battery problem, replace one of the cell and reset the code, now it running OK, but the brake still has the baking noise, I'm now reading on many article here about the bleeding the brake.
I just find out on my dashboard warning light is missing the brake indicate light (when you put on the emergency brake), and those abs, vsc lights.
other Prius owner told me to plus the power button twice without step on the brake should bring all those light on to confirm they on working, but all I see is the airbag and the other one (maybe traction).
I put on obd thing on it, don't have any code now, but most of time I start the car it has a long beep sound, it only has a maintenance required light Flash 2-3 time and off.
Because I want to do the brake and understand Prius brake is different, if I done something wrong or missing anything, I want to see the warning light.
Does these light can be turn off and on(unplug).
Can someone help me?

 

Thank you, I just order one via eBay.
But before I start I want to make sure the warning light is working
Anyone can help?

 

Ok, got my mini vci, and connect it to my Prius, bleed the brake line and replace the pads, and the brake does feel better, but when step the brake hard enough, brake still make noise, and the brake pump just running with only stop for few second and running again.
brake actuator? I think go get the used one off eBay for 200 instead of new one for 1400, anyone has experience on used one?
Also when use the mini vci to test those warning light on dash, it's Not on, brake, abs, (((!))), check engine, vsc and the red triangle, all these light is Not function.
Any idea if the po can turn those light off by unplug some wire? I can see the dash has been took off before.

 

finally I got my $200 used brake actuator, and installed.
Thank you for people posting the manual to remove and install it.
Now my brake is much better, and the mpg is also increase because the regenerate brake now is work 100% of time.
Only thing is I still don't know those those warning light is NOT on at all.