2020 Chevrolet Suburban Fuel system Problems
- Complaints
- 3about this part
- Share
- 7%of 44 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 fuel system of the 2020 Chevrolet Suburban, 7% of the 44 complaints for this model year. 1 of these say a crash was involved, according to the filers. 1 recall campaign on record is filed under a similar system.
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.
“Out of the blue, while driving, my car started lurching and making a weird rattling noise. I was able to make it to a mechanic, where I learned the cylinder lifters collapsed and crankshaft were broken. The mechanic told me this is a common defect for GM motors. My vehicle is only five years old, so to learn we have a $10-20,000 repair on our hands was paralyzing and devastating.”
NHTSA complaint #11657746, filed 2025-04“Fuel injector failed and pumped too much gas into cylinder causing gas to get into engine oil and ruin engine. GM claims they are building the replacement engine, but won't give any estimate of when it will be fixed. Other dealers that are receiving these engines will not sell the engine to my dealer. I believe there is a bigger problem that GM will not admit to and they should be held accountable. Four months is too long for this situation to exist!”
NHTSA complaint #11590849, filed 2024-05“Have had starter problems since we purchased the vehicle. Starter intermittently loudly grinds when pressed 2-3 times a week and won’t start. Dealership could repeat problem once, but never fixed it. Took vehicle in at least half a dozen times. Never fixed. Car also makes an odd humming when gas is applied. This week, car started and died after driving a foot. Then car wouldn’t start at all. Brakes stiffened up and wouldn’t compress without substantial effort. Everything resolved on its own within 30 minutes. …”
NHTSA complaint #11433233, filed 2021-09Related recalls
- 19V837000Nov 21, 2019General Motors LLC (GM) is recalling certain 2020 Cadillac Escalade, Escalade ESV, Chevrolet Camaro, Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon…Covers: Chevrolet Suburban 2020, GMC Sierra 1500 2020, Chevrolet Silverado 1500 2020 +6 more
Related 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…
- 11006377Jul 23, 2024This informational bulletin explains the difference in AFM and DFM engines and what is and is not activated during this occurrence.
- 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…
Fuel system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2024 | 2 | 4% |
| 2023 | 6 | 5% |
| 2022 | 13 | 10% |
| 2021 | 32 | 16% |
| 2020 | 3 | 7% |
| 2018 | 4 | 5% |
| 2017 | 6 | 4% |
| 2016 | 5 | 2% |
| 2015 | 27 | 6% |
| 2014 | 2 | 3% |
| 2013 | 5 | 4% |
| 2012 | 2 | 2% |
| 2011 | 6 | 4% |
| 2010 | 3 | 3% |
| 2009 | 6 | 6% |
| 2008 | 6 | 3% |
| 2007 | 11 | 4% |
| 2005 | 8 | 6% |
| 2004 | 14 | 7% |
| 2003 | 11 | 4% |
| 2002 | 27 | 9% |
| 2001 | 60 | 14% |
| 2000 | 40 | 14% |
| 1999 | 37 | 6% |
| 1998 | 11 | 5% |
| 1997 | 46 | 11% |
| 1996 | 23 | 6% |
| 1995 | 7 | 2% |
| 1994 | 15 | 2% |
| 1993 | 1 | 0% |
| 1991 | 1 | 2% |
| 1989 | 2 | 3% |
| 1988 | 3 | 10% |
| 1987 | 3 | 17% |
| 1986 | 1 | 14% |
Other parts of the 2020 Chevrolet Suburban
17 complaintsTransmission and drivetrain
10 complaintsElectrical system
8 complaintsOther or unknown
4 complaintsSteering
4 complaintsBrakes
3 complaintsVehicle speed control
3 complaintsAir bags
2 complaintsElectronic stability control
2 complaintsSuspension
2 complaintsEngine cooling
1 complaintsForward collision avoidance
1 complaints
← All problems reported for the 2020 Chevrolet Suburban
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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