TSB: Some 2008 ? 2013 model year Highlander and Highlander HV vehicles may exhibit a condition where the Power Back Door does not close properly. The Back Door may get to the fully closed position and then reverse to the open position. In other cases, the door may close, but a pop or clunk noise is heard when the door latch reaches the striker. Use the following information to inspect the Power Back Door and address this condition.