yes, but only when you totally renew all your p/s fluid.
depending on the age of the old fluid, small deposits from your pump wearing over time will be floating about in the fluid.
Flush it
check power steering oil. if the oil is dirty and burnt ,yaes it needs flush otherwise no power steering does not need flushing unless there is a problem
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 will screw your steering system. You need to flush steering system ASAP. And of course do not drive with engine oil in steering.
Read the owners manual. It has that information.
If it is not a clear red color, yes. If your wallet is too fat and making you lean to one side, thus giving you a backache, then go ahead, spend some of the smaller bills on a power steering flush.
I paid $ 129.99 at the GM dealership for power steering flush & fill with synthetic fluid.
It is not necessary to flush the power steering system in a car. However, you should check the power steering fluid level in the car each month.
I would not
My guess is that you have a tired power steering pump. Try a power steering fluid flush first, it wouldn't hurt.
I need more information
You either need power streering fluid or a power steering belt.