See Figures 1, 2, 3, 4 and 5
The power steering pump reservoir is located at the front left or right side of the engine (depending on the year and model. The reservoir is usually mounted to the top of the cowl, remote from the power steering pump, for ease of service.
Use GM Power Steering Fluid No. 1050017 (1985-95 vehicles), No. 1052884 (1996 vehicles), or a suitable equivalent.
Avoid using automatic transmission fluid in the power steering unit, it is not usually a directly compatible substitute any more.
The power steering fluid should be checked at least every 6 months. There is a Cold and a Hot mark on the dipstick. The fluid should be checked when the engine is warm and turned OFF . If necessary, add fluid to the power steering pump reservoir.