2005 Cadillac STS Owner's Manual - Page 191

This chime and light will be repeated if the driver remains unbuckled and the vehicle is in motion. If the airbag readiness light stays on after you start the vehicle or comes on when you are driving, your airbag system may not work properly. Have your vehicle serviced right away. {CAUTION: If the driver's belt is buckled, neither the chime nor the light will be provided. If the airbag readiness light stays on after you start your vehicle, it means the airbag system may not be working properly. The airbags in your vehicle may not inflate in a crash, or they could even inflate without a crash. To help avoid injury to yourself or others, have your vehicle serviced right away if the airbag readiness light stays on after you start your vehicle. The airbag readiness light should flash for a few seconds when you turn the vehicle on. If the light does not come on then, have it fixed so it will be ready to warn you if there is a problem. If there is a problem with the airbag system in your vehicle, the Service airbag message will appear on the DIC display. See DIC Warnings and Messages on page 3-74 for more information. Airbag Readiness Light There is an airbag readiness light on the instrument panel, which shows the airbag symbol. The system checks the airbag's electrical system for malfunctions. The light tells you if there is an electrical problem. The system check includes the airbag sensors, the airbag modules, the wiring and the diagnostic module. For more information on the airbag system, see Airbag System on page 1-45. This light will come on when you start your vehicle, and it will flash for a few seconds. Then the light should go out. This means the system is ready. 3-59