Bleeding the System
Bleeding Air From Power Steering Systems:
NOTICE: When adding fluid or making a complete fluid change, always use power steering fluid meeting GM Spec. No. 9985010 or equivalent. Fluid for cold climates is also available through GM Dealerships; refer to "Specifications" at the end of this section. Failure to use the proper fluid can cause hose and seal damage, fluid leaks and pump failure.
To bleed the power steering system follow the procedure in the illustration.