This bulletin applies to 2011 Mazda 2 vehicles. Some customers may complain about a slight clunk, bang or jolt from the front of the vehicle after starting the engine and as the vehicle first begins to move forward.
Some 2009-2013 Mazda6 vehicles may exhibit an unusual humming noise from the front wheel bearings. This may be caused by muddy water entering the wheel bearing(s), causing the bearing(s) to rust. A new bearing seal design has been improved to eliminate this concern.