2004 Chevrolet Impala power train problems
47 owner complaints filed with NHTSA name the power train on the 2004 Chevrolet Impala — 4% of all complaints for this model year.
What owners report
“Cars acceleration causes me to be unable to pick up speed it decelerates up hills small or latg ramps cats constantly fly pass to avoid a multi car pile up it’s very dangerous!”
filed Nov 29, 2025
“I have a 2004 impala and I'm noticing that the transmission is going out in it I have been told that the transmission mess up a whole lot in these type of cars why is that and why did y'all not fix the problem”
filed Aug 24, 2019
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This…
24-NA-141 · Service Bulletin/Repair Instructions · issued Jul 24, 2024
Power Train problems in other Impala years
| Year | Reports | Share |
|---|---|---|
| 2019 Impala | 5 | 18% |
| 2018 Impala | 11 | 19% |
| 2017 Impala | 12 | 10% |
| 2016 Impala | 16 | 15% |
| 2015 Impala | 16 | 5% |
| 2014 Impala | 37 | 6% |
| 2013 Impala | 33 | 12% |
| 2012 Impala | 27 | 10% |
| 2011 Impala | 64 | 13% |
| 2010 Impala | 67 | 15% |
| 2009 Impala | 68 | 8% |
| 2008 Impala | 91 | 11% |
Other reported problem areas on the 2004 Chevrolet Impala
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.