Has anyone figure out ABS, Traction control, and parking brake light issue!!!!!!???? :(

Probably loose speed sensor cable

 

there will be codes...

 

That’s the expected behavior for any problem with the brakes. Toyota’s Repair Manual (more info) explains: “When a malfunction is detected in the brake control system, the skid control ECU turns the ABS warning, brake warning / red (malfunction), brake warning / yellow (minor malfunction) and slip indicator lights come on, as well as prohibits ABS, BA, TRAC and VSC operations.”

The good news, as @bisco notes, is that the skid control ECU (electronic control unit, i.e., computer), and perhaps other ECUs, will have stored one or more diagnostic trouble codes (DTCs), each associated with a specific set of conditions that the ECUs have been programmed to detect as a malfunction.

Until the stored DTCs have been read, none of us can say if your car has the same problem discussed in any of the other threads. Trouble with a wheel speed sensor or its wiring, as @tankyuong kindly suggests, is one possible cause, but there are more than a dozen other reasons you’d see exactly the same warning lights.

Use a Toyota Techstream diagnostic system or the TC-to-CG jumper technique to read the stored DTCs, and then use the procedure for each DTC in the Repair Manual to find and fix the actual problem.

 

Part of what's going on here is you're using singular language ("issue", "this same issue", "this problem") when all you have is the three warning lights on the dash that are controlled by the car's brake/traction/skid computer.

There are on the order of two hundred different reasons that computer can turn those lights on. So when you see them, you simply get a trouble-code reader and ask it why it turned the lights on, and it tells you, and then you know where to look for the problem and how to solve it.

Once you understand that, it makes more sense that you don't end up seeing one singular answer in the forum to what "the" problem is when those lights come on. Just a bunch of people being notified of problems with their cars, and reading the codes to identify the different problems they are having, and moving on accordingly.

Which is exactly what you can do, once you have the trouble codes. If you post them here, people can help.

 

Anything plugged into the OBD port, btw?

 

yes, they get stored in the computer until cleared with scanner or 12v disconnect

 

Most ECUs store the codes, so a tech should be able to read past codes.

The exception is when the 12 volt battery is failing, if it dies, many codes are lost.

 

The code about leakage is not about regen braking, it's about the hydraulic fluid that stops the car when you want to not hit things.

 

I would suspect the 12 battery. A Prius is just not suited to being in N any length of time. (Toyota is required by law in the US to have an N) So far as I know, there is no way to disable regen braking. It is central to the operation of the car.

If you MUST use a mobile carwash, a long cruise first will help a little.

 

Force charge in the park lot, full within minutes