Additional Factors Affecting SystemOperationSafety belts help keep the passenger in position on theseat during vehicle maneuvers and braking, which helpsthe passenger sensing system maintain the passengerairbag status. See “Safety Belts” and “Child Restraints” inthe Index for additional information about the importanceof proper restraint use.A thick layer of additional material, such as a blanket orcushion, or aftermarket equipment such as seat covers,seat heaters, and seat massagers can affect how well thepassenger sensing system operates. We recommendthat you not use seat covers or other aftermarketequipment except when approved by GM for your specificvehicle. See Adding Equipment to Your Airbag-EquippedVehicle on page 1-69 for more information aboutmodifications that can affect how the system operates.{ CAUTION:Stowing of articles under the passenger seat orbetween the passenger seat cushion and seatbackmay interfere with the proper operation of thepassenger sensing system.Servicing Your Airbag-EquippedVehicleAirbags affect how the vehicle should be serviced.There are parts of the airbag system in several placesaround the vehicle. Your dealer/retailer and theservice manual have information about servicing thevehicle and the airbag system. To purchase a servicemanual, see Service Publications Ordering Informationon page 7-16.{ CAUTION:For up to 10 seconds after the ignition is turned offand the battery is disconnected, an airbag can stillinflate during improper service. You can be injuredif you are close to an airbag when it inflates. Avoidyellow connectors. They are probably part of theairbag system. Be sure to follow proper serviceprocedures, and make sure the person performingwork for you is qualified to do so.1-68