In the last few days my airbag light has been coming on - At first every once in a while (a restart would extinguish it) but now it's become more frequent... Any thoughts?

 

air bag fluid is low

seriously it may be a failing seat belt buckle/stalk.

 

Exactly the symptoms I had. A short squirt of silicone spray into.the slot of the buckle and twenty to thirty vigorous latch/unlatches and no more light for.about. 2 weeks. Then did it again and no light in many weeks. Dealers will supposedly replace bad buckles for free but my dealer is fare.enough away that I just opted to try this rather than have them end.up charging or.arguing with me. If it comes back I'll probably change it.