GMC Sierra Owners Manual
Owner Checks and Services
At Each Fuel Stop
• Check the engine oil level. See Engine Oil on page 10‑7.
Once a Month
• Check the tire inflation pressures. See Tire Pressure on page 10‑62.
• Inspect the tires for wear. See Tire Inspection on page 10‑68.
• Check the windshield washer fluid level. See Washer Fluid on page 10‑28.