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EnginePart report

2020 Chevrolet Silverado 3500 Engine Problems

Complaints
6about this part
Share
14%of 42 total for the year
Median mileage
28,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 6 complaints about the engine of the 2020 Chevrolet Silverado 3500, 14% of the 42 complaints for this model year. Where a mileage was given, the median is 28,000 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 contact owns a 2020 Chevrolet Silverado 3500. The contact stated that the check engine warning light was illuminated. Additionally, the vehicle later failed to start and became undrivable. The dealer was notified of the failure and an appointment was scheduled for diagnostic testing and for the manufacturer internal recall repairs. The vehicle was not diagnosed or repaired. …”

NHTSA complaint #11672413, filed 2025-07, 28,000 miles

“Fan pulley broke in half, snapped fan belt, damaged fan and caused truck to overheat. Truck would not turn off when overheated, even when fan was not working, so truck kept getting hotter. Dealer said this is the 3rd one they've seen this week”

NHTSA complaint #11543598, filed 2023-09

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2025217%
202436%
2023425%
2022311%
202137%
2020614%
2019418%
2018632%
2017215%
2016510%
2015815%
2014110%
2013415%
2012417%
2011414%
2009110%
200826%
200738%
200636%
200425%
200325%
200224%
2001710%
200011%
199912%
199811%

Other parts of the 2020 Chevrolet Silverado 3500

Transmission and drivetrain
16 complaints
Brakes
7 complaints
Electrical system
5 complaints
Fuel 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 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