FYI there are no manufacturer’s currently recommending a power steering flush now I’m not saying that under certain conditions a power steering flush is not necessary but beware when the service writer is trying to sell you one A high mileage vehicle with dirty smelly fluid ( easy to confirm) Repairs performed require a flush to maintain warrantyPeace of mind if you are worried about it go ahead Remember it is easy to do your self messy but nothing complicated also if the PS needs service also check the brake fluid many times I have repalced brake fluid and cured an ABS problem I would recommend replacing the brake fluid at every brake repair