Hi, I have a 2003 Monte Carlo 3.4 with approximately 95,000 miles. About a month ago, I began seeing the airbag light flash along with the battery light...And while those are flashing, and I attempt to use the turn signal, all I hear is a buzzing sound....But then both lights go off & turn signal goes back to normal...This is the first issue that I have had with my car....if anyone have info on what may be causing this, I appreciate the feedback...thanx

 

The battery light leads me to believe maybe your alternator is bad. Could also possibly be a start of issues with your BCM

 

What is the BCM?

 

As far as it being the Alternator, I just put a new battery in 2 days ago, and the car is still running and the battery hasn't been drained by the bad alternator...