2005 Saturn Ion Owner's Manual - Page 137

Battery Warning Light {CAUTION: 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 ignition key to RUN. If the light doesn't come on then, have it fixed so it will be ready to warn you if there is a problem. The battery warning light will come on briefly as a check, when you turn on the ignition. Then it should go out when the engine is started. If the light does not come on when you start your vehicle, have your vehicle serviced right away. This condition may indicate your battery warning light is not functioning properly. If this light comes on while you are driving, be sure to turn off accessories such as the radio and climate control system. Have your vehicle serviced right away. 3-29