Hi there. My Avalon doesn't start. It was fine as of last night, this morning I try to start but It doesn't. All I hear is a click and the lights come up for just one second. If anyone can help me, I wil really appreciate it.

From the sound of it - your battery isn't providing power. That can be that the battery itself is dead or perhaps the battery terminals aren't making a good connection (on either end). Try taking the battery leads off, scuff the posts and the cable ends with a wire brush or sand paper and reinstalling them snuggly. If that still doesn't work - take the battery to a car parts store and ask them to test it. If it's no good they can at least offer you a replacement to buy.

Good luck.

Does it have a single click or multi clicks? If its a single click your starter is bad and needs to be replaced. If its multi clicks your battery is to weak or I would check the connections