Hi everyone, I'm new here and am hoping some of you can chime in on what you think the problem might be with my 2001 prius. First off, let me just say that I have driven it about twice in the past month or so. Last night while driving about 3 miles away the warning light came on the with the red triangle popped up on the mfd. Of the three indicators its the one all the way on the right hand side. The check engine light came on as well. After stopping and grabbing a bite, and letting the car take a breather I decided to drive back home. It drove fine and I didn't notice any issues accelerating. It does have 99k miles on it. I've been reading some similar posts and I don't know if the 12v battery has been changed out because it is actually my girlfriends car. I'm hoping that's all it could be. She had it washed last month and stuck some kind of air freshener in the cigarette lighter port. It doesn't light up when the car is not running but since the car is rarely driven, I'm thinking it might be slowly draining the 12v battery. Like I said, please chime in! I would rather not take it to the dealership since we are strapped for cash. Thanks!