The power steering fluid level is indicated by marks on a fluid level indicator on the fluid reservoir cap. When adding fluid or making a complete fluid change, always use the proper fluid. Failure to use the proper fluid will cause hose and seal damage and fluid leaks. If the fluid is warm; about 150°F (66°C) or hot to the touch, the level should be between the HOT and COLD marks. If the fluid is cooler than 150° F (66°C), the fluid level should be between the ADD and COLD marks.
In conventional, or moderate, climates, use only GM Power Steering Fluid Part Number #1050017 (1 quart size). In cold weather climates, use only GM Power Steering Fluid Part Number #12345867 (1 quart size). Many vehicle owners will purchase a quart or two of GM Power Steering Fluid from an authorized GM dealer so the correct power steering fluid is always available.