Originally Posted by able2358
Took my wifes car to a different dealer,
Two techs and service advisor were baffled.
They reflashed the computer i belevieve it was 12b35b upgrade.
Makes same noise they said not to worry but agreed it wasn't normal.
Read some more on another site and this update was for those complaining about the car rolling backwards on hill starts.People are opting to not have this update just for this reason. Going to call dealer and see if it is possible to reflash the computer with an older version of the software. Anyone know if this is possible.
Keep us updated if you found a solution.