I own a 2008 Tundra DC Ltd 4x4. I go away for three weeks at a time for work. When I return home from work, I start the truck with no problems. However, if I leave it for another day or so after starting it, the battery will be dead. On one return trip, I started the truck with no problems, drove across town to the dealership to discuss this very problem, and when I came out, the battery was dead. This has happened now on three different occassions. The truck has been back to the dealership three times. They have load tested the battery, checked the alternator and checked to see if there is something dragging the battery down. Everything is within spec. Bottom line, nothing has been changed, so I still have a truck that could possibly leave me stranded. I want them to replace the battery to try something to fix this problem. They won't replace it because they say that there is nothing wrong with it. Please help! I am so frustrated with this truck and Toyota. I would get rid of it, only I would lose my shirt over it. Thanks.