Security light went on last month. It was taken in immediately for repair. I was told it was the ignitiion cylinder. The car also makes a vibrating noise on accelerator. I was told this was the drive shaft and the catalitic converter. All replaced. The car still made noise when left service at northeast auto center in philadelphia pa where it was purchased. Yesterday the light for security is back on. 2004 Chevy Impala very disappointed. Car has 55,000 miles. At 36K the radiator and water pump went during funeral procession.

- Bensalem, PA, USA

2004 Chevy Impala with steering failure. Customer states that the vehicle would not stop, so she had to hit a curb, when the car was restarted she drove about another mile and the failure occurred again. The problem was determined to be a speed sensor for the electric power assist in the steering column. The consumer also stated the engine would misfire. The dealer replaced the camshaft position sensor.

- Saint Peters, MO, USA

My 2004 Impala ss has had several failures of the instrument panel cluster. The first was incorrect speedometer readings that lead to total failure of the speedometer (sticking and/or erratic behavior of the speedometer needle). The second was improper fuel level indication (high level shown with low fuel light coming on - almost no fuel left). The latest is incorrect oil pressure indication. All of these are known issues with the model of stepper motor used to drive these gauges in many GM vehicles. My total cost for repair has been in excess of $300, not including the current oil pressure gauge repair (stepper motors for speedo and fuel level gauge). I plan on having all stepper motors replaced with the latest generation replacement (switec X25.168). This is something that GM needs to take responsibility for and correct as it is a very widespread issue.

- Grant Township, MI, USA

- the contact took the 2004 Chevrolet Impala in to have a routine oil change. The vehicle had 37, 792 miles. The contact was told by the dealer that the coolant & oil was leaking into the engine. The vehicle was repaired and she has the repair order. This is the first incident. The vehicle did not give any warnings. However, the contact's coolant light turned on 9/06 and she had coolant added.

- Downers Grove, IL, USA

This vehicle had a head gasket repaired under standard 3 year/36,000 mile warranty. We are now told we have another head gasket or head problem at 49,000 miles. This appears to be an engine manufacturer problem or I got a lemon engine from Chevrolet?

- Davenport, IA, USA

Dex-cool antifreeze turned brown and sludged up. Less than one year and 16,200 miles on vehicle. Took to dealer and had system flushed, reservoir replaced and new coolant added. I will take it back for the same thing every year. Many people I've spoken to with GM vehicles have experienced the same thing with this coolant.

- Colleyville, TX, USA

My "low oil level" light came on after 2000 miles. I had the oil changed, it was a quart low. I was told that new vehicles sometimes "absorb" oil the first time. The light came on again at 5000 miles, the oil was over a quart low. It was implied that I was not resetting the change oil light properly. The engine oil light came on at 9000 miles. At this point I paid for an oil change and an oil consumption test was done. The low oil light came on again at 10,000 miles. The dealership made a service appointment, topping off the oil since it was a quart low and I shouldn't go four days with the oil a quart low. When I returned for the service appointment my oil level was only 1/2 quart low. They had forgotten that they topped it off. I had to pay for another oil change and another oil consumption (dye test) was started. I was shown a notice that was sent to the dealership regarding defective gaskets or seals on 2004 Impala. To date I have had four oil changes, all of which the oil level was over a quart low. I would think that there was enogh evidence to warrant the repair to my vehicle without having to pay for another oil change and wait 2000 miles. I am concerned that if oil is being consumed it has to effect other parts of the engine. The oil has to go somewhere. Again, I was told that it would not cause any effect to any other part of the vehicle.

- Grand Ledge, MI, USA

All probs with 2004 Impala ss started after 3 months of puchase date. There were less than 3,000 miles on car. 1st incident - while making right turn at 20 mph, car died 1/2 way through turn. The steering wheel locked and ended up going into oncoming traffic. Luckily made it to opposite side of road w/ harm. Car wouldnt start at all. Dealership service dept. Replace crank shaft position sensor. 2nd incident - approx 3 weeks after 1st, I was stopped to drop passenger off, car started to shake and idle was high, 2 seconds later car died. Car restarted this time, driving home about 35mph car died in heavy traffic, steering locked and had to struggle to get car over to side of road. Car would not restart this time. Dealership service dept again replaced the crank shaft position sensor. 3rd incident - got the car back on a Friday afternoon, the car died again while driving by Saturday nite. Dealership service dept looked a little further than crank shaft position sensor this time and repaired loose pin connections in ignition coil module connector. 4th incident - 2 months after all this, cigarette lighter doesnt work, lights dim when power windows put up, dash board sensor that gets off when low fuel light/ low tire pressure light comes ondoes not reset. Car still feels sluggish. Loud scratching noiseoccurs when wheels turned all the way in one direction. Everything fixed B/C of blown fuse. Scraping noise coming from loose clip in tire wheel well. Deealership stated car was running fine and there was no perforamance problems. This has happened over the last 6 months. Car presently has 4500 miles on it. Oh and Chevrolet roadside assistance absolutely horrible. And then to top everything off the dealership makes it seem like all of these problems are caused by the driver, by asking well what gas do you use and how fast do you drive on the highway. This car is an Impala ss. The car is supposed to be built for performance.

- Staten Island, NY, USA