GMC Sierra Owners Manuals
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Safety Belt Care
Keep belts clean and dry.
WARNING
Do not bleach or dye safety belts. It may severely weaken them. In a crash, they
might not be able to provide adequate protection. Clean safety belts only with mi ...
Engine Exhaust
WARNING
Engine exhaust contains carbon monoxide (CO) which cannot be seen or smelled. Exposure to CO can cause unconsciousness and even death.
Exhaust may enter the vehicle if:
• The vehicle idle ...
Tire Rotation and Required Services Every 12 000 km/7,500 mi
Rotate the tires, if recommended for the vehicle, and perform the following services. See Tire Rotation on page 10‑50.
• Check engine oil level and oil life percentage. If needed, change engi ...





