See Engine Compartment Overview for reservoir location.
It is not necessary to regularly check power steering fluid unless you suspect there is a leak in the system or you hear an unusual noise. A fluid loss in this system could indicate a problem. Have the system inspected and repaired.
To check the power steering fluid, do the following:
The level should be at the C (Cold) mark. If necessary, add only enough fluid to bring the level up to the mark.
To determine what kind of fluid to use, see Recommended Fluids and Lubricants . Always use the proper fluid. Failure to use the proper fluid can cause leaks and damage hoses and seals.