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Vehicle Overview
The GMC Sierra 1500 and Chevrolet Silverado share the same platform, but the GMC product is often positioned as a more upscale offering. Mechanically, the trucks are the same. There might be sligh ...

Before Driving Off-Road
• Have all necessary maintenance and service work completed. • Fuel the vehicle, fill fluid levels, and check inflation pressure in all tires, including the spare, if equipped. • Read all the ...

Brake System Warning Light
The vehicle brake system consists of two hydraulic circuits. If one circuit is not working, the remaining circuit can still work to stop the vehicle. For normal braking performance, both circuits need ...