However, the backup battery is charged by the main battery, so if your car’s battery has been depleted, chances are high that your airbag’s backup battery has been as well. The airbag has a backup battery just for such cases. In certain cases an accident can crush the vehicle’s battery before it has time to trigger the airbags. Because most car batteries are at the front of the vehicle, however, they’re susceptible to damage in the event of a collision. Each of these is susceptible to issues that can cause the airbag warning light to turn on.Īirbag deployment is powered by your car’s battery. The four primary components of the airbag system are the backup battery, impact sensor, clock springs, and airbag module. All of these lights mean the same thing: something is malfunctioning with your airbag system. Most vehicles will show the word “Airbag,” the letters “SRS,” or a picture of an airbag deploying. Multiple variations of the airbag warning light exist. An illuminated airbag light means your airbag system is compromised and you are driving without the protection of airbags, which makes this an important light to diagnose promptly.
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