2005 Toyota highlander rear brake noise

I have a 2005 Highlander that had repeated rear brake noise problem after the dealership serviced the brake in May this year. The sound was like dragging or grinding. After that, I brought my car back but the noise came up every time in 3-7 days. Here is the of the service record from the dealership:

  • 5/31/2011: initial maintenance. Rotor resurfaced, pad replaced
  • 6/17/2011: Adjustment and lubrication.
  • 7/13/2011: Replaced the pad.
  • 8/20/2011: Technician could not hear the noise during drive test. Ticket withdrawn.
  • 8/26/2011: Tighten e-brake, lubrication.

Tech told me the left and right brakes were not balanced. I recorded the noise in the following Youtube video:

Turn volume up and notice the last two stops.

Any comment on the problem and recommendation what I should say to the dealership service? I plan to take the car back in a few days.

Thanks,

I listened twice, I could not hear the noise. My recommendation if you do this again is to have someone point the camera at the brake pedal instead of the scenery outside. It helps to know exactly when the brakes are being applied.