2010 OBS with auto transmission. Mileage: 2600+\n\nSymptom: Buzzing coming from under the dash to the right of the center\nconsole, up underneath near firewall. It happens only at low rpm range\nwhen engine is under load such as going up a small grade. The noise\nhas a metallic/glass-like sound. I think it's inside.\n\nThe dealer has now made two attempts to find this noise, and it's\ndriving my wife crazy. They've replaced a heat shield and re-mounted a\nline on the firewall near the cabin air filter assembly; both outside\nthe cabin.\n\nAdvice anyone? Has anyone experienced or heard of this?