I changed my drivers side HID bulb a few weeks ago and just noticed the Red airbag light has been staying on constantly (I don't recall seeing it immediately after changing the bulb).

I'm wondering if there's any correlation of my changing the bulb and possibly bumping loose a connector for the airbag ... anybody know if that's possible (not sure where these sensors are located) or is this just coincidence?

 

Its very unlikely its realted to the bulb change. Take it to the dealer and get the code pulled and get it fixed asap. With that light being on either the system detects a fault with your airbags or seatbelts and could prevent the airbags from depolying in an accident. Also most SRS and seatbelt problems are covered under a warranty for the life of the car.