Four problems related to engine have been reported for the 2003 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Chevrolet Impala based on all problems reported for the 2003 Impala.
2003 Chevrolet Impala. Consumer states vehicle is unreliable, periodically not running the consumer stated when he turned on the ignition, it would not turn over. It didn't make any type of noise, but the headlights and security light would turn on. After letting the vehicle sit for awhile, it would then start.
My chevy, Impala caught on fire.
The consumer stated that the trunk latch on 2003 Chevrolet Impala was designed incorrectly. When he put a suit case in the trunk or anything heavy, the latch stuck very high, bent, and eventually the trunk would not shut. The dealer changed the latch once. The foreman and the mechanic at the dealership told him that there was a problem with this model. The warranty was soon to run out. (11/18/05) per invoice, the driveability seemed to idle high.
While driving with three passengers in my 2003 Chevrolet Impala LS at 35 mph the engine shut-off without warning with complete loss of power steering and brakes, requiring emergency maneuver to bring car to a stop before hitting oncoming traffic. A replacement vehicle was not made available. While driving to a medical emergency, later that evening, this recurred at 50 mph (engine shut-off without warning, loss of steering and braking power requiring emergency stop in center median 4 lane highway merge site). This happened previously with this vehicle on 7/4/03 at 50 mph with my wife driving on the van wyck expressway. At that time, after 3 days gm regional service manager stated that there was a defective crank-shaft sensor which was replaced. I advised gm that there were other reports to NHTSA about this problem with Chevrolet Impalas. I requested that an investigation and possible recall should be initiated and asked for a refund or replacement of my vehicle. This was denied "as there were too few episodes to warrant this action" and my car" was repaired per warranty obligation of general motors corporation". Unfortunately this happened to my vehicle again without warning placing myself and my passengers in danger. This is a potentially life threatening defect requiring immediate action to prevent injury or loss of life. The car is presently again at the dealership. I have contacted gm corporate headquarters about this issue. I have been told that they will fulfill their warranty obligations and attempt to repair my vehicle again.