2020 Chevrolet Impala Fuel system Problems
- Complaints
- 2about this part
- Share
- 13%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 2 complaints about the fuel system of the 2020 Chevrolet Impala, 13% of the 15 complaints for this model year. 1 of these say a crash was involved, according to the filers.
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.
“I was driving down the highway in anchorage ak I heard a loud bang like a gunshot , when the vehicle was inspected I was told basically Evap, fuel system , fans , electrical , Cadillac converter exploded was the loud bang ! Serious issues have caused the vehicle to be inoperable !”
NHTSA complaint #11615402, filed 2024-09“The component is the Evaporative Emission Control System (EVAP) Vapor Canister Purge Valve.The internal diaphragm or solenoid of the factory-installed purge valve has worn out prematurely or became contaminated, locking it permanently into a stuck-open position.The Manifestation or (Symptoms): The stuck-open valve continuously drafts raw fuel vapor and unmetered air into the engine intake manifold. …”
NHTSA complaint #11744373, filed 2026-06Related service bulletins
- 11017173Mar 21, 2025This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.
- 11007095Aug 7, 2024This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles…
- 11004727Jun 29, 2024This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
- 11004761Jun 28, 2024This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or…
- 10253061Mar 4, 2024This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel…
- 10250505Feb 7, 2024This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
- 10246003Oct 16, 2023This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on. Technician will…
Fuel system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2020 | 2 | 13% |
| 2019 | 2 | 7% |
| 2018 | 3 | 5% |
| 2017 | 4 | 3% |
| 2016 | 5 | 5% |
| 2015 | 10 | 3% |
| 2014 | 13 | 2% |
| 2013 | 10 | 4% |
| 2012 | 18 | 7% |
| 2011 | 17 | 3% |
| 2010 | 17 | 4% |
| 2009 | 19 | 2% |
| 2008 | 19 | 2% |
| 2007 | 23 | 4% |
| 2006 | 20 | 4% |
| 2005 | 42 | 7% |
| 2004 | 37 | 3% |
| 2003 | 26 | 4% |
| 2002 | 34 | 4% |
| 2001 | 39 | 5% |
| 2000 | 76 | 9% |
| 1996 | 9 | 10% |
| 1995 | 5 | 11% |
| 1994 | 4 | 27% |
Other parts of the 2020 Chevrolet Impala
7 complaintsElectrical system
3 complaintsSteering
3 complaintsAir bags
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 30, 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