Hello all. I recently purchased a pre-owned 2006 Highlander Hybrid. I love the car, with one exception. The alarm goes off intermittantly and randomly, including this morning at 5:00 am! I took the car back to the dealer the week after I purchased it and they told me it would take a full day to run the proper diagnostics. Before I do this, I wanted to check if there were any quick fixes or other ideas. Thanks very much.