Workshop Repair and Service Manuals GMC SIERRA
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Airbag System

If the Off Indicator is Lit for an Adult-Size Occupant      If a person of adult-size is sitting in the right front passenger seat, but the off indicator is lit, it could be because that person is not sitting properly in the seat. If this happens, use the following steps to allow...
Passenger Sensing System      If the vehicle has one of the indicators pictured in the following illustrations, then the vehicle has a passenger sensing system for the right front passenger position, unless there is an airbag off switch located in the...
Airbag On-Off Switch      If one of the switches pictured in the following illustrations is located in the glove box, the vehicle has an airbag on-off switch that you can use to manually turn on or off the right front passenger airbag. United...
Where Are the Airbags?      The driver airbag is in the middle of the steering wheel. The right front passenger airbag is in the instrument panel on the passenger side. Driver Side Shown, Passenger Side Similar If the vehicle has...
Airbag System Check      The airbag system does not need regularly scheduled maintenance or replacement. Make sure the airbag readiness light is working. See Airbag Readiness Light on page 5?20 for more information. Notice: If an airbag covering...
Adding Equipment to the Airbag-Equipped Vehicle      Q: Is there anything I might add to or change about the vehicle that could keep the airbags from working properly? A: Yes. If you add things that change your vehicle's frame, bumper system, height, front end or side sheet...
Servicing the Airbag-Equipped Vehicle      Airbags affect how the vehicle should be serviced. There are parts of the airbag system in several places around the vehicle. Your dealer and the service manual have information about servicing the vehicle and the airbag...
Additional Factors Affecting System Operation      Safety belts help keep the passenger in position on the seat during vehicle maneuvers and braking, which helps the passenger sensing system maintain the passenger airbag status. See “Safety Belts” and “Child Restraints” in the...
If the On Indicator is Lit for a Child Restraint      If a child restraint has been installed and the on indicator is lit: 1. Turn the vehicle off. 2. Remove the child restraint from the vehicle. 3. Remove any additional items from the seat such as blankets, cushions,...
What Will You See after an Airbag Inflates?      After the frontal airbags and seat-mounted side impact airbags inflate, they quickly deflate, so quickly that some people may not even realize an airbag inflated. Roof-rail airbags may still be at least partially inflated...
How Does an Airbag Restrain?      In moderate to severe frontal or near frontal collisions, even belted occupants can contact the steering wheel or the instrument panel. In moderate to severe side collisions, even belted occupants can contact the inside of the...
What Makes an Airbag Inflate?      In a deployment event, the sensing system sends an electrical signal triggering a release of gas from the inflator. Gas from the inflator fills the airbag causing the bag to break out of the cover and deploy. The inflator, the...
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...
Replacing Airbag System Parts after a Crash      WARNING A crash can damage the airbag systems in the vehicle. A damaged airbag system may not work properly and may not protect you and your passenger(s) in a crash, resulting in serious injury or even death. To help...