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Fuel systemPart report

2020 Chevrolet Silverado 3500 Fuel system Problems

Complaints
5about this part
Share
12%of 42 total for the year
Median mileage
40,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the fuel system of the 2020 Chevrolet Silverado 3500, 12% of the 42 complaints for this model year. Where a mileage was given, the median is 40,000 miles.

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 fuel pump driver module. I filled my truck up with diesel and it drove home fine. Later that afternoon left the house and got half mile down the road and the truck just shut off with no warning lamps or message. When this happened, you could not steer the truck and the brakes barley worked, now after the truck cut off a message came to shift in neutral. I was lucky no one was on the road at that time. Now had this happened the day before when I was coming home pulling a 40ft fifth wheel, this could have been catastrophic. …”

NHTSA complaint #11747679, filed 2026-07

“The contact owns a 2020 Chevrolet Silverado 3500. The contact stated that while driving at various speeds, the vehicle would independently downshift as the vehicle would fail to accelerate upon the depression of the accelerator pedal. The DEF (Diesel Exhaust Fluid) malfunction warning light would illuminate on the instrument panel during the failure. The contact had taken the vehicle to a dealer where they acknowledged the failure but informed him that the parts to repair the vehicle was unavailable. The manufacturer was notified of the failure and a complaint was filed. …”

NHTSA complaint #11454995, filed 2022-03, 40,000 miles

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
202518%
202448%
202316%
2021512%
2020512%
2019418%
2018526%
2017215%
20161122%
20151529%
2014330%
2013415%
2012626%
2011621%
200826%
2007513%
200636%
2005817%
2004717%
2003717%
2002816%
2001710%
200011%
199949%
19981015%
1997711%

Other parts of the 2020 Chevrolet Silverado 3500

Transmission and drivetrain
16 complaints
Brakes
7 complaints
Engine
6 complaints
Electrical system
5 complaints
Tires
5 complaints
Engine cooling
2 complaints
Other or unknown
2 complaints
Forward collision avoidance
1 complaints
Latches, locks and linkages
1 complaints
Visibility (wipers, defrost, mirrors)
1 complaints

← All problems reported for the 2020 Chevrolet Silverado 3500

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