What does a continuously illuminated airbag light signify?

A continuously illuminated airbag light indicates that there is an issue with the airbag system, suggesting that it requires servicing. When this light is on, it typically means that the system has detected a malfunction that could affect the deployment of the airbags in the event of a collision. Therefore, it is crucial to have the airbag system checked by a qualified technician to ensure it will operate correctly when needed.

In contrast, if the light were to be functional, it would not remain illuminated; instead, it would behave differently based on the system's status — it should turn on for a few seconds during the ignition cycle and then turn off if everything is operational. A light indicating the airbag needs to be replaced is not entirely accurate, as the light doesn't specify replacement but rather service. Lastly, the light does not indicate that the airbag is about to deploy; it is a warning that there may be an issue that needs rectifying before any deployment can occur safely.