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.

    See also:

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    Vehicle Overview
    GM says the Sierra 1500 Hybrid's gasoline V-8 and electric motors team up for an overall mileage improvement compared with the regular Sierra. The Sierra Hybrid is only available as a rear- or fou ...

    Footnotes — Maintenance Schedule Additional Required Services — Normal
    a) Check all fuel and vapor lines and hoses for proper hook-up, routing, and condition. Check that the purge valve, if the vehicle has one, works properly. Replace as needed. b) Or every four years, ...