2010 GMC Savana 2500 Cargo Owner's Manual - Page 89

When Should an Airbag Inflate? Frontal airbags are designed to inflate in moderate to severe frontal or near-frontal crashes to help reduce the potential for severe injuries mainly to the driver's or right front passenger's head and chest. However, they are only designed to inflate if the impact exceeds a predetermined deployment threshold. Deployment thresholds are used to predict how severe a crash is likely to be in time for the airbags to inflate and help restrain the occupants. Whether the frontal airbags will or should deploy is not based on how fast the vehicle is traveling. It depends largely on what you hit, the direction of the impact, and how quickly the vehicle slows down. Frontal airbags may inflate at different crash speeds. For example: • If the vehicle hits a narrow object (like a pole), the airbags could inflate at a different crash speed than if the vehicle hits a wide object (like a wall). • If the vehicle goes into an object at an angle, the airbags could inflate at a different crash speed than if the vehicle goes straight into the object. Thresholds can also vary with specific vehicle design. Frontal airbags are not intended to inflate during vehicle rollovers, rear impacts, or in many side impacts. Single Stage vs. Dual Stage Airbags Depending on the weight of the vehicle, you will have either "Single Stage Airbags" or "Dual Stage Airbags." Vehicles that have a passenger sensing system also have dual stage airbags. See Passenger Airbag Status Indicator on page 4-26 or Passenger Sensing System on page 2-72. If the GVWR (Gross Vehicle Weight Rating) of the vehicle is 8,500 lb (3 855 kg) or above, the vehicle may have single stage airbags. If the GVWR is below 8,500 lb (3 855 kg) then the vehicle may have dual stage airbags. You can find the GVWR on the certification label on the rear edge of the driver door. See Loading the Vehicle on page 5-17 for more information. • If the vehicle hits a stationary object, the airbags could inflate at a different crash speed than if the vehicle hits a moving object. • If the vehicle hits an object that deforms, the airbags could inflate at a different crash speed than if the vehicle hits an object that does not deform. 2-65