See Engine Compartment Overview for reservoir location.
It is not necessary to regularly check the 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:
For vehicles with the 4.2L L6 engine, the level should be at the C (Cold) mark. For vehicles with the 5.3L V8 engine, the level should be at the FULL 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.
Notice: Use of the incorrect fluid may damage the vehicle and the damages may not be covered by the vehicle's warranty. Always use the correct fluid listed in Recommended Fluids and Lubricants .