After having problems with seizing wheel cylinders and other brake problems due to moisture in the hydroscopic brake fluid, I started flush clean fluid through the brake systems of my vehicles every 2 years... Have not had a single corrosion (or any brake problem for that matter) since...
You need to flush the power steering fluid on a 2003 Toyota Highlander every two to three years. You should check the fluid levels weekly.
You do not need to change it at all, unless you have replaced some long brake lines. Just make sure that the level of the fluid is proper.
Every two years under normal driving circumstances. If fluid is dirty and low, go ahead have it done.
once a year
PS should be 18000 miles and brake fluid about 30000 miles PS should be 18000 miles and brake fluid about 30000 miles
Usually it's low brake fluid or a problem with the abs. Check the brake fluid reservoir. Often the brake fluid will go down as the brake pads wear and the calipers has to travel further.
"Maint Req" stands for Maintenance Required - oil change, transmission fluid addition, brake fluid, battery check, tire pressure, brake pads, etc. Check your owners manual for the car to see what's required and how often.
Every 2 years
My mechanic told me every 2-3 years, depending on how dirty the fluid looks.
Read the owners manual. It has that information.
You should change your automatic transmission fluid in Toyota gearbox at least after every 30,000 miles.
It depends on the type of fluid and level of contamination or heat. if there is no problem with the fluid it should be left alone!