Four problems related to alternator/generator/regulator 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.
When to start car and would not start. Lights and radio would come on. Had a new battery put in and the alternator checked. 2 weeks later when to pick up niece from the baby sitter, was inside for 3 minutes came back out car would not start again. After 45 minutes of trying to start it finally started. Yesterday, went out to my car to drive to a meeting and once again it would not start. About 40 minutes later I went back out to try it again and it started right up. I did research online and found several complaints. Apparently this is a pass code issue. I do not feel I should have to go and get all this work done when there is no real solution. The code will not always come up so nobody knows what exactly is wrong with the car. In summary, the security system thinks that I am trying to steel my own car. This has left me stranded in the cold 3 different times. I am a 25 year old lady. That is totally unsafe and as there is no real solution to the problem that anyone can find how and I supposed to get it fixed. I have a child on the way. This is not the only year that does it either. All Impalas have this issue from the years 2003-2005. How can a recall not be issued. I called chevy and they basically said to go to a dealer but that is not an acceptable answer when I read that several people have spent thousands of dollars at their dealer on the same issue and are still having issues. . Read more...
2003 chevy Impala will not start. The dealership states it is a bcm problem. The remote installed on the car fob does not work and has never worked. Doors will not lock and the trunk will spring open when traveling down the road. Since the doors and trunk do not lock, there is no security on this vehicle. And again the car will not start. I have replaced the battery and alternator and the car still does not start.
My 2003 Impala will occasionally not start. Had batter, alt and generator checked all ok. After sitting about 10 minutes car starts fine. Seems it's the passlock system and is a known problem to gm. A recall should be made.
Security light intermittently coming on. Vehicle will not start for 10 minutes after initial attempt to drive. Transmission kicks terribly when attempting to accelerate. Brake light, battery light, and airbag light intermittently flash when braking. Alternator and battery check fine at service. All signs point to bcm and gauge cluster.