2010 GMC Sierra 1500 Crew Cab Owner's Manual - Page 385

Locking Rear Axle Vehicles with a locking rear axle can give more traction on snow, mud, ice, sand or gravel. It works like a standard axle most of the time, but when traction is low, this feature will allow the rear wheel with the most traction to move the vehicle. Steering Tips It is important to take curves at a reasonable speed. Traction in a curve depends on the condition of the tires and the road surface, the angle at which the curve is banked, and vehicle speed. While in a curve, speed is the one factor that can be controlled. If there is a need to reduce speed, do it before entering the curve, while the front wheels are straight. Try to adjust the speed so you can drive through the curve. Maintain a reasonable, steady speed. Wait to accelerate until out of the curve, and then accelerate gently into the straightaway. Steering Power Steering If the vehicle is a Two‐mode Hybrid, see the Two‐mode Hybrid manual for more information. If power steering assist is lost because the engine stops or the system is not functioning, the vehicle can be steered but it will take more effort. 5-9