I have a 2004 lexus is300 sd, 6 cyl auto/techtronic on steering wheel,around 68,000miles. about 8 months ago every time it is moist, damp, rainy, humid my dash lights up with that funny little headlamp self adjusting leveler light comes on. about 1 month ago we started having problems starting the car and when putting the car in drive it doesn't catch. It used to idle fowards on its own at almost 3 mph with out stepping on the gas, now it doesn't move at all. I have to mash the gas to even get it to move a lil above 10 mph. Then it bucks and finally catches after about 60 yards of driving it. We had an alternator test done and the alternator is def. bad it has a doid (?) in it. Are all these issues related??? or is my car just hexed with some serious serious electrical gremlins???? Also does anyone know how hard it is to change out the alternator by yourself, because I am a Do It Yourself'r and would love to save a few hundred bucks if its not too difficult.