I dunno if this is an issue or not...but i noticed that from time to time (not all the time) that when i turn the key to start the car theres a buzz noise? is anyone else having this problem? should i be worried?

 

Does this happen when you start driving? Or when you turn the key?

If it happens once you start driving, it's the ABS then VSA doing self-checks and pressurizing the modules.

 

I have the same thing... I thought that it might be a relay or something. Very strange- sounds like electricity in a transformer.