Actually yes you can go by looks. That's how it used to be done, change when dirty. It's not just changed due to being hydroscopic (which take a good amount of time for enough moisture to get in) but because like any fluid, it breaks down when it gets hot enough.Yep, it needs to be done some time during the car's 3rd year of life. Mine lit up two years to the week after I took delivery.
And you can't go by looks. The moisture that is the reason you change it out doesn't change the color much. I've done several fluid flushes for friends now, and it looks okay in the resevoir, but turns a rather unattractive shade of green-ish black after a while in my waste canister.
Most manufacturers recommend every 2 or 3 years as noted here: https://www.aa1car.com/library/bfluid.htm
This! 57k and ~2 years and 6 months. Did you replace pads?My maintenance minder showed the brake fluid at about 55,000 miles and 2 years. I’d bet the minder goes by time not miles. I haven’t changed it yet, but I’ll likely do it soon.
Meh, my VW wanted it every two years, GM wants it every three, etc. So, "sometime during the 3rd year" for our cars seems pretty normal.