1998 GMC Sonoma Owner's Manual - Page 118

Safety Belt Reminder Light When the key is turned to RUN or START, a chime will come on for about eight seconds to remind people to fasten their safety bel& unless the driver's safety belt is already buckled. The safety belt light will also come on and stay on for about 20 seconds, then it will flash for about 55 seconds. If the driver's belt is already buckled, neither the chime nor the light will come on. I ~ This light will come on when you start your engine, and it will flash for a few seconds. Then the light should go out. This means the system is ready. I If the air bag readiness light stays on after you start the engine orcomes on when you are driving, your air bag system may not work properly. Have your vehicle serviced right away. Air Bag Readiness Light There is an air bag readiness light on the instrument panel, which shows the air bag symbol. Thesystem checks the air bag's electrical system for malfunctions. The light tells you if there is an electrical problem. The system check includes the air bag sensors, the air bag module, the wiring and the diagnostic module. For more information on the air bag system, see "Air Bag" i n the Index. The air bag readiness light should flash for a few+ seconds when you turn the ignition key to RUN. Ifthe light doesn't come on then, have it fixed so it will be ready to warn you if there is a problem. 2-54