In january of this year my 2003 buick century began with panel lights flashing on and off at various times making the gauges and speedometer impossible to read. very expensive estimate to fix. then in february was driving home at night and the abs light came on. took to shop and they couldn't get it to do it. after third time had it repaired. took whole driver side wheel assembly to get sensor $500. in march driver side window began going up and down by itself. took it to shop and they are unable to find a problem. the car only does it when the panel lights flash on and off. bad vibration in the car around june. had all four tires replaced and new brakes and rotors. on august 4, 2011 vibration started again, then started a popping noise in the front end when starting and stopping. car vibrates so bad you can not hold steering wheel at 45-50mph. this pop and vibration is now coming from front right side. not sure what it is yet. *tr