My power steering and brakes works poorly in low speeds and parking, what is the problem?
If you have Hydroboost braking system your power steering pump could be going bad and not producing enough pressure at lower engine RPM's.
Thanks ill chekk that further out :)
Search GMC Yukon XL Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
GMC Yukon XL Experts