2020 Chevrolet Impala Electrical system Problems
- Complaints
- 3about this part
- Share
- 20%of 15 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the electrical system of the 2020 Chevrolet Impala, 20% of the 15 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The air conditioner tube was off inside the vehicle and caused massive leaking in the carpets. Causing mold to grow excessively under the floor mats, in the carpets, under the seats, etc. Which as a result led to electrical issues. It’s being looked into by a senior member at GM for months now, nothing is being done. Radley Chevy in Fredricksburg Virginia hasn’t done anything for us either. My family is now having respiratory issues due to the mold issue.”
NHTSA complaint #11436029, filed 2021-10Related service bulletins
- 11017595Apr 3, 2025This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.
- 11017244Mar 31, 2025The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other…
- 11017207Mar 21, 2025This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414…
- 11017031Mar 12, 2025This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.
- 11014230Jan 31, 2025This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11014239Jan 29, 2025This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during…
- 11014222Jan 28, 2025This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.
- 11013069Jan 9, 2025This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
- 11012929Jan 7, 2025This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
- 11012189Dec 6, 2024This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2020 | 3 | 20% |
| 2019 | 9 | 32% |
| 2018 | 11 | 19% |
| 2017 | 15 | 13% |
| 2016 | 30 | 27% |
| 2015 | 96 | 32% |
| 2014 | 221 | 35% |
| 2013 | 52 | 19% |
| 2012 | 58 | 22% |
| 2011 | 95 | 19% |
| 2010 | 132 | 30% |
| 2009 | 224 | 27% |
| 2008 | 221 | 27% |
| 2007 | 128 | 20% |
| 2006 | 124 | 24% |
| 2005 | 331 | 54% |
| 2004 | 681 | 63% |
| 2003 | 264 | 38% |
| 2002 | 305 | 38% |
| 2001 | 225 | 30% |
| 2000 | 187 | 23% |
| 1996 | 11 | 13% |
| 1995 | 6 | 14% |
| 1994 | 5 | 33% |
Other parts of the 2020 Chevrolet Impala
7 complaintsSteering
3 complaintsAir bags
2 complaintsFuel system
2 complaintsTransmission and drivetrain
2 complaintsEngine
1 complaintsExterior lighting
1 complaintsLane departure
1 complaintsSeat belts
1 complaintsSeats
1 complaintsBody and structure
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2020 Chevrolet Impala
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology