How to Add Power Steering Fluid to a 2025 GMC Sierra 3500 HD Pro 6.6L V8

Is your Sierra 3500 HD hard to turn? You might need to add power steering fluid - this video shows you how to correctly add power steering fluid to your 2025 GMC Sierra 3500 HD. Adding power steering fluid to your Sierra 3500 HD is easy (the hardest part is determining where is the power steering reservoir in your Sierra 3500 HD) and should be done whenever your power steering fluid is low. Before adding power steering fluid, be sure to check your owners manual to determine what type of power steering fluid to add to your Sierra 3500 HD. This information will typically be located in the back of the manual in a section title fluid capacities and specifications.In a few days, check the power steering fluid level in your Sierra 3500 HD to make sure you don't have a leak. If you notice the power steering fluid level is low, see our how to fix minor power steering fluid leaks video.