My problems started a couple of weeks ago when I pulled the Regal into my driveway and put it in park. The anti-lock brake light and service engine soon light came on. I pulled the key and tried to start the car and it seemed fine. This didn't happen again. But yesterday I took the care out and noticed that the trip meter reset itself while I was driving, then when I got home the anti lock brake light came on. I also noticed that when I used the left turn signal it killed the engine. Then it would no longer shift into gear, it was locked in park. After messing with it further it started sometimes, but not often. I would try maybe 3 -5 times to get it to turn over. I looked through the internet and figured the problem was the ignition switch, but today when I checked the battery it was only 50% charged. I put my charger on it and got it fully charged, but when I tried it still did nothing. And still when I put on the left turn signal it made the dash lights go out and made a funny beeping sound. So I figured it wasn't the battery, until I noticed it was now only 75% charged. I only tried to start it once, so can't figure out why it lost 25% of it's charge. Do you think the battery is the problem? I am going to try switching a battery from my old car, but the problem with that is it has been sitting for 6 months. However, when I put the charger on the other battery it reads fully charged. Any help would be appreciated. I ordered a new ignition switch that will probably come on Monday, but do not look forward to tearing apart the steering wheel to get to it. I would be much happier if it were the battery. Anyone else have problems like this from a bad battery?