I bought a used 2004 Chevrolet Impala and October 19, 2007 and a few months after I had the vehicle the speedometer stopped working. My speed odometer said I was doing forty when I got pulled over for doing 55mph, and as I pulled off and looked at the speedometer it was stuck at 40mph. Also the lights go out at any given time on their own. I was driving home one night and my head lights shut off in the middle of a curve and I hit the brakes and slid off the road. This is a real safety hazard. After I fooled around with the highbeam switch for a while the lights started working again.

- Citronelle, AL, USA

2004 Impala headlights go out unexpectedly while driving at night but will come back on if the dimmer switch is used..dash lights and headlights dim when stopped at traffic light.

- Connellsville, PA, USA

The contact owns a 2004 Chevrolet Impala. While driving approximately 55 mph at night, the high beam headlights failed to operate when activated. The contact's visibility was extremely poor and she pulled the vehicle over to the side of the road. She had to manually hold the dimmer switch while driving to ensure the activation of the headlights. The vehicle was able to be driven normally, but has not been repaired. The VIN was not accepted by the system. The failure mileage was 60,000 and current mileage was 70,000. Updated 5/26/09 updated 05/28/09.

- Warsaw, MO, USA

The headlights go completely out occasionally when switching on the high beams. It has done this intermittently for some time. They will come on when you switch them again. The car is a 2004 Chevrolet Impala ss. It first started it about 2 yrs ago.

- Fort Pierre, SD, USA

I have read several complaints on forums, such as the ones on carcomplaints.com, about this issue. 2004 Chevy Impala... using the high beams, and suddenly its dark out side... the lights just turn off! you have to flicker the high beams a few times, and the normal lights will come back on. My lights have turned off while driving in the dark at least 400 times so far! this is going to get someone killed! everyone wants around $700 to fix the issue, I think Chevy should step up and pay this!

- Lago Vista, TX, USA

The headlights keep cutting out with increased frequency with all exterior lights including the dash lights. Also, the speedometer will stop working and just keep increasing until it points straight down. Both have happened several times.

- Fowlerville, MI, USA

My 2004 Impala has problems with it's light/dimmer switch. One has to click the handle twice in order to dim/brighten the lights. A couple of time the dash lights and headlights all went completely out when I tried to dim/brighten the lights. This is a hazard. There should be a recall!!!!!

- Sidney, ME, USA

Driving on a dark rural road at night and tried to put my lights on high beam. The lights went totally out when I tried to put them on high beam. Previously during the past 3 months they have flickered when I went to put them on high beam but did not go totally out. I have tried several more times to put them on high beam and the lights go out totally each time so I do not dare to try to put them on high beam now at all. I have called a dealership to have this looked into. They say they will have to test the car first then take the steering column apart and probably replace the switch. Estimated cost up to $1000 my car has only 27,499 miles on it and I bought it brand new in 2004.

- Augusta, ME, USA

While driving at night my high beams will suddenly shut off. If I hit the dim/bright switch, the low beams will come back on. I have tried taking the lights off of the automatic setting but it makes no difference. It is very dangerous to be driving at night and the lights all of a sudden shut off.

- Wabeno, WI, USA