I have a 2009 X sedan with 36,000 mi.
Has anyone experienced a mild vibration in the drivetrain while under very light load? Mostly it happens when SLOWLY letting off the gas or in cruise and starting to go downhill. This happens between 60 and 85 mph (haven't tried at higher speeds). It's not the tires being out of balance 'cause I put on new tires and it's still there. My first guess is an out-of-balance drive shaft. Anyone else experience this?

 

If your still under warranty can't you go into the dealers to have them fit it?

 

I simply wanted to know if anyone else has experienced this. Obviously I will go to the dealer.

 

My old camaro had driveshaft issues with the stock unit. The car would hum at speeds over 55 mph. The level of throttle didn't matter, it was mostly speed dependent. I replaced the steel shaft with the aluminum one which sort of solved the problem. It moved the speed up to 70/75mph where the hum would begin.

Let us know what they find.