I noticed ever since I bought my car last april its been happining. Ok so every time I just start my car up when its cold and I drive of it makes a buzzing/vibrating type noise and it only does once I first take of after its warm it goes away what could it be? And it did it before and after my new tranny..... also no matter how slow I drive right after startup it will still do it.....

 

Its the ABS primer/ self check. Its completely normal

 

ahhhh thank you for the fast responce. Nice to know my car is fine.