Chevrolet B7 2001 Owner's Manual page 137

What to Use
To determine what kind of fluid to use, see
"Recommended Fluids and Lubricants" in the Index.
NOTICE:
When adding power steering fluid or making a
complete fluid change, always use the proper
fluid. Failure to use the proper fluid can cause
leaks and damage hoses and seals.
If your power steering fluid level is low, this can
cause the PRIMARY BRAKE or AUX BRAKE
warning lights to come on. If either light remains
on after you have added power steering fluid to
the proper level, then shut off the engine for
10 seconds. This should reset the brake warning
lights. If one or both lights stay on though, see
"Hydraulic Brake Warning Lights" in the Index.
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Brakes
Brake Fluid
CAUTION:
Don't add brake fluid before you check the level.
If you do, you could get too much brake fluid.
Brake fluid could spill on the hot engine and it
can catch fire. You could be burned and your
vehicle could be damaged. See "Checking Brake
Fluid" in this section.
If your vehicle has
hydraulic brakes, there's
a brake master cylinder.
Refer to the Maintenance
Schedule to determine when
to check your brake fluid.