Should I change 17 y/o brake fluid

I would open a bleeding valve at a time at the caliper and pump the brake pedal until the brake fluid coming out is the same color as the one I added, while keeping adding fluid in the reservoir so not to introduce air in the system. Best time is when changing/rotating wheels since it's easy to access the bleeding valve with the wheel off.

 

that's not toyota, that's a dealer putting words in toyotas mouth.
i wonder if gen 4 or 5 maintenance schedules have recommendations.

 

Read down through the many many search hits. The link was a Google search. Even if Toyota still doesn't give a recommendation brake fluid is hygroscopic and absorbs moisture. It's an industry recommendation not to go 17 years even if Toyota doesn't give a firm one.

 

^Just editorial.

 

I just change the fluid, pumped out through the bleeders, per the non-Techstream method, albeit with a baste out and refill of reservoir at the outset. A couple of times now, on our ‘10.

 

agreed, it is odd that they do not, i can't think of a reason

 

Never knew that, thanks.

 

It's called lowering maintenance cost; that's the same reason oil changes was moved to 10K miles. It lowers the TCO (total cost of ownership). Some consumers are actually getting smarter and looking at that.

 

what are the symptoms of bad brake fluid? i've gone 11 years without changing it