All of a sudden, brakes?

A few years back I replaced my rear hubs, cheaper ones sadly. About a month or so
later I had the same problem. It was a bad sensor in the hub. I put the older on back on
until the replacements came. They lasted a few thousand miles. I bought Timkens.
They've been on about 50,000 miles and still going...

You should take it back to whoever replaced them and have them see which sensor is bad.
And make sure the hubs say "Timken" on them.

 

So then couldn't he take the sensor wires out of the old hubs and stick one back in the one that's bad or showing bad and it would work The sensors just pull out of the hubs right they're not permanently in there forever? They can be changed they can be ripped out cut messed up by people and or things that get slung in between the wheels and somebody goes four wheeling or similar? This is why I tend to do this stuff myself because those hubs would be laying on my shop floor and I could pull my sensors out lay them off to the side or in a box and have them as extras if you will.

 

The wire connectors to the rear speed sensors (embedded in the bearing) are a bear to disconnect. Maybe they broke the connector latches while disconnecting them, and pushed them back on, but they've come loose.

I think you can check if they're pushed on without raising the car.

Full disclosure: both sides on mine have those latches broken. So far they've held on ok though.

 

Yes I found a dab of release agent type glue like goop can really help out with some of those connectors they won't come apart until you pry and pull a little bit whether the connecting part is broken or not It will stay together

 

The trouble codes in this situation might have something to do with the rear speed sensors or the work that was done, or they might not, but so far nobody has said what the trouble codes are.

If there isn't a scan tool handy to read them, they can be read without one, as described on this wiki page:

Blink (a/k/a Flash) Codes – How to. | PriusChat

 

Just for giggles check that the connectors are solidly pushed in, "might" save you a dealer$hip visit.

 

The hubs are an easy change out they are I'm glad somebody admits that it's not that big of a deal Time consuming if you have tools like an electric impact and a long breaker bar you know I don't know 45 minutes aside or something like that maybe a tad longer If you have never done this and you have to make arrangements for every maneuver you need to do then yes it'll take a little longer once you think about it for a minute and see what you have to do not a lot of business to worry about in reality It sounds like something is disconnected squashed cut something something is not sensing. Once they figure that out and get it plugged in or set correctly maybe everything will be good so I'm guessing you have no codes or can't read them or something I'm not sure.