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Magnetic ride control enhances attraction GMC of Sierra Denali


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June 23, 2014: Magnetic ride control is an all-new, exclusive feature on the 2015 GMC Sierra Denali, advancing its position as the most refined and technologically advanced truck on the market. It’s the first time the advanced, electronically controlled damping system has been offered on a full-size truck.

Magnetic ride control provides more precise body motion control that correlates with a more refined ride while maintaining payload and trailering capability. It is standard on all Sierra Denali half-ton models, whether equipped with the standard 5.3L V-8 (355 hp) or the available 6.2L V-8 (420 hp) – the segment’s most powerful engine.

“With magnetic ride control, the 2015 Sierra Denali delivers a smoother, more confident driving experience without sacrificing the capabilities customers expect from a GMC truck,” said Jeff Luke, executive chief engineer. “The responsiveness of the system makes this full-size truck feel and drive like a luxury vehicle – and one that’s more comfortable on long trips, especially when trailering.”

The 2015 Sierra Denali’s maximum payload is 1,940 pounds (4WD with 5.3L and 5’8” box) and the max trailering capacity is 9,400 pounds (2WD with 5.3L or 6.2L and 5’8” box).

The third-generation magnetic ride control’s sensors “read” the road every millisecond, triggering damping changes in as little as five milliseconds in electronically controlled shock absorbers that replace conventional mechanical-valve shocks. They’re filled with a magneto-rheological fluid containing minute iron particles, and under the presence of a magnetic charge, the iron particles align to provide damping resistance. Changes in the magnetic charge alter the damping rate of the shocks almost instantly.

Magnetic ride control complements chassis and suspension enhancements introduced across the Sierra 1500 range for 2014:

A stronger, fully boxed frame with the main rails and major cross members formed from high-strength steel, providing a rigid base for maximum hauling capability, great noise and vibration isolation and excellent crashworthiness. The stiff chassis enables more precise tuning of the front and rear suspensions, for a more responsive feel with smoother performance and less vibration and shake, particularly on harsh terrain. A wider rear track and half-inch wider wheels improve that stability and ride smoothness. The geometry also contributes to flatter, more confident-feeling cornering, particularly when hauling heavy cargo or towing. An electric variable-assist power steering system enhances handling and reduces steering effort at low speeds. The variable assistance enhances overall handling with reduced steering effort in parking lots and a higher rate on the highway that provides a more solid, direct and on-center feel.