GM Genuine Parts Suspension Self-Leveling Control Modules are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These control modules help keep your vehicle at the recommended level if the load changes. The system works by feeding air in or extracting air out of air controlled components. The height sensors provide the control module with information on the heights. If the heights are outside of specified tolerances, the system intervenes using the air supply to trim the vehicle for a given mode or condition. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

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• This part requires programming and/or special setup procedures. GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle
• Helps control your vehicle's ride height
• Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
• GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
• GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
• GM regularly updates production and service part designs to integrate new materials and technologies