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The 2007 Silverado and Sierra are available with five suspension systems, each tuned to provide an optimized ride with smoothness, a greater feeling of isolation from the road and minimal body movement; all suspensions feature monotube front shocks. The suspensions include:

  • Z83 – solid, smooth ride
  • Z85 – enhanced handling and trailer towing
  • Z71 – enhanced off road capability
  • Z60 – maximum street performance (offered with 20-inch wheels)
  • NHT – maximum capacity trailering package

In a first for the segment, GM’s sophisticated StabiliTrak electronic stability control system is standard on crew cab models and available on extended cab models. Partnered with the new brake system and four-channel electronic brake controls, the system provides more precise, controlled ABS stops, as well as enhanced traction/yaw stability.

360-degree perimeter of safety protection
Silverado and Sierra are built on new, stronger fully boxed frames that are designed to provide increased crush protection during a crash. High-strength steel reinforcements are strategically located on the frame to enhance crashworthiness. They also feature new compatibility brackets that ensure better interaction with lower-riding vehicles during a crash.

Driver control is bolstered through enhanced dynamics, such as wider front and rear tracks, as well as more responsive suspensions – including a new coil-over-shock front suspension design and rack-and-pinion steering – that deliver smoother, linear and more precise characteristics for a more confident, sure-footed driving performance.

Additional safety features include:

  • New, roof-mounted head curtain side air bags inflate to restrain outboard passengers in both seating rows, offering protection during side-impact and rollover events; they are sized specifically to all three cab styles and each has its own dedicated inflator for optimized fill rates into each curtain. The air bags are integrated into the chassis and body structures for enhanced passenger protection.
  • Dual-stage frontal air bags with GM’s passenger sensing system are standard on all models.
  • Segment-first front safety belt pretensioners with both front and rear crash sensors.
  • StabiliTrak electronic stability control system is standard on crew cab models and available on extended cab models – and is a first for the segment. Partnered with the new brake system and four-channel, four-sensor electronic brake controls, the system provides more precise, controlled ABS stops, as well as enhanced traction/yaw stability.
  • A high capacity brake system with a new, four-channel ABS system provides superior stopping capability. ABS is standard on all models and is linked to the StabiliTrak electronic stability control system to help mitigate the occurrence of rollover events.
  • Four-wheel drive models feature the Autotrac active transfer case, which helps keep the vehicle sure-footed in slippery driving conditions. When shifted to the “Auto” mode, Autotrac engages all-wheel drive traction automatically.
  • An exclusive Eaton automatic locking rear axle also helps provide additional traction when needed, particularly when towing.
  • A new Ultrasonic Rear Parking Assist system is available and provides visual (LED lights) and audible warnings of objects behind the vehicle.
  • A revised and easier-to-use tire pressure monitoring system is standard on all models. It alerts the driver via a signal on the instrument panel driver information center if a tire’s inflation status requires attention.
  • A segment-exclusive factory-installed remote vehicle starting system is available on most models – a first for GM’s full-size trucks – providing customers with the convenience of starting the vehicle during inclement weather or other situations.
  • Power-adjustable pedals complement increased front seat fore/aft travel to enable smaller-stature drivers to find an optimized driving position.

All retail models come standard with the OnStar Generation 7 system, including a one-year subscription to the Safe & Sound plan. The OnStar service includes the General Motors Advanced Automatic Crash Notification (AACN) system, making crash data available to emergency services to potentially dispatch the appropriate life-saving personnel and equipment to crash scenes faster. If the vehicle is in a crash that activates an air bag, the OnStar system automatically notifies an OnStar advisor, who will check on the occupants or summon emergency help if necessary. OnStar also can assist authorities in locating a vehicle if it is reported stolen and provides remote door-unlocking service (when the vehicle is equipped with power locks).

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