I checked the oil level and it 's full and clean. I checked all rear bulbs including license plate, running lights, side markers, brakes (upper and lower), and turn signals, ALL working fine. I hadn't driven the car in about 7 weeks because of a stroke I suffered, so I had the battery on a charger for a couple of days. Last time I drove it, everything was fine. Could having it on a charger have affected something? I do have a trusted mechanic and it looks like I might have to bring it in and have them check out what's going on. I can't help thinking both problems are related rather than coincidence. I also tried disconnecting the battery for about 60 minutes to try and "reset" the warning lights, but nothing reset.