The airbag light on my 2005 Buick Lacrosse comes on intermittenly, what is going on?
You need to have the problem diagnosed by someone who can scan for trouble codes that are specific to the airbag system. When the light is illuminated, your airbags are inoperable, so that should be your motivation to get this checked out as soon as possible.
Hopefully, this is just a case of a loose electrical connector for one of the many sensors used by the SRS, but only someone who can personally examine the car will be able to say for sure. This is one case where the dealership may be the best place to have the problem diagnosed.