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2021 Chevrolet Silverado 2500 problems: engine and transmission complaints and recalls

HIGH COMPLAINT SIGNAL
44%
37 of 87 relevant owner complaints are about the engine, transmission or fuel system

44% of relevant owner complaints filed with NHTSA on the 2021 Chevrolet Silverado 2500 are about the engine, transmission or fuel system. That is a model-level pattern, not bad luck.

Worse than 55% of the 1,789 model years we track (2010–2023).

NHTSA data checked October 3, 2026
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Does the 2021 Chevrolet Silverado 2500 have transmission problems?

Owner complaints say yes, as a model-year pattern. 37 of 87 relevant complaints filed with NHTSA about the 2021 Chevrolet Silverado 2500 concern the engine, transmission or fuel system (44%), and the largest group is filed under power train (29). For comparison, the 2020 scores 48% and the 2022 scores 30%. On a test drive, check for shuddering, slipping, delayed or harsh shifts, or a whine at speed. This describes the model year, not any one car: a well-maintained or already-repaired example can be fine, and a clean model year can still have a bad car in it.

Drivetrain complaints
37
engine, transmission, fuel
Total complaints
87
this model year
Fires reported
1
owner-reported
Recall campaigns
6
2 crashes · 2 injuries

Complaints by component

POWER TRAIN29 · 33%
ELECTRICAL SYSTEM17 · 20%
SERVICE BRAKES12 · 14%
ENGINE8 · 9%
LATCHES/LOCKS/LINKAGES8 · 9%
UNKNOWN OR OTHER6 · 7%

The years either side

2010
35%
24 of 83
2011
35%
43 of 179
2012
34%
32 of 121
2013
35%
34 of 115
2014
49%
71 of 164
2015
32%
68 of 258
2016
26%
30 of 128
2017
44%
71 of 178
2018
55%
24 of 53
2019
49%
34 of 74
2020
48%
50 of 108
2021
44%
37 of 87
2022
30%
28 of 95
2023
56%
24 of 47

Manufacturers fix things mid-generation. A bad year next to a clean one is common; the fix usually arrived in between.

Cleaner alternatives

Same car, a better year

Other heavy-duty pickups with no elevated signal

The percentage is each model year's drivetrain complaint share. No elevated signal describes the model year, not any one car; a well-kept example of a flagged model can still be the right buy, and any of these still needs an inspection.

What owners reported

POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM01/30/20231 INJURED
JULY 2022 DPF filter was throwing check engine light. Took to dealer to get diagnosed, part was ordered and the DPF was replaced August 19th 2022. Started to get headaches in vehicle while driving it. OCT 9th ended up in hospital after driving vehicle and was diagnosed with CARBON MONOXIDE POISONING. Experienced sympto…
ENGINE09/29/2026
The contact owns a 2021 Chevrolet Silverado 2500. The contact stated that while driving 15 MPH, there was a knocking sound coming from the engine. The vehicle was taken to the local dealer, and the contact was informed that the engine was blown causing complete engine failure. The engine was replaced under warranty, bu…
POWER TRAIN09/23/2026
Pulling out from a stop sign, a loud bang came from the transmission, and rear wheels momentarily locked up then truck acted like it was in neutral. Truck was able to drift to side of road. We called our GM dealer, and they told us that our warranty had expired. We had the truck towed to our certified repair shop. Afte…

Three of 37 drivetrain complaints. The full report shows more, with quotes about the engine in the car you are looking at first.

Recall campaigns on the 2021 Chevrolet Silverado 2500 (6)

TIRES:TEMPORARY/EMERGENCY SPARE TIRE
General Motors, LLC. (GM) is recalling certain 2020-2021 Chevrolet Silverado 2500 and GMC Sierra 2500 vehicles equipped with a 17" spare tire (RPO ZHQ or ZXT) and either …
SERVICE BRAKES, HYDRAULIC:POWER ASSIST:ELECTRIC:CONTROL MODULE
General Motors, LLC (GM) is recalling certain 2021-2022 Chevrolet Silverado 2500, Silverado 3500, GMC Sierra 2500, and Sierra 3500 vehicles with electronic brake control …
SEAT BELTS
General Motors, LLC (GM) is recalling certain 2019-2021 Chevrolet Silverado 1500 and GMC Sierra 1500, 2021 Chevrolet Suburban and Tahoe and GMC Yukon XL and 2020-2021 Che…

This does not say whether a particular car has an open, unrepaired recall. That depends on the VIN.

Before you buy a 2021 Chevrolet Silverado 2500

Questions people ask about the 2021 Chevrolet Silverado 2500

Does the 2021 Chevrolet Silverado 2500 have transmission problems?

Owner complaints say yes, as a model-year pattern. 37 of 87 relevant complaints filed with NHTSA about the 2021 Chevrolet Silverado 2500 concern the engine, transmission or fuel system (44%). Before buying one, have an independent mechanic check the transmission and ask the seller whether it has been repaired or replaced.

Are there engine or transmission recalls on the 2021 Chevrolet Silverado 2500?

NHTSA lists 6 recall campaigns on the 2021 Chevrolet Silverado 2500. Whether a specific car still has one open depends on its VIN.

Which Chevrolet Silverado 2500 years are better?

Among the Chevrolet Silverado 2500 years we track, the 2016 (26%), the 2022 (30%) and the 2015 (32%) have a lower engine and transmission complaint share than the 2021 (44%). Manufacturers fix things mid-generation, so the year before or after can be a different car.

Should I buy a 2021 Chevrolet Silverado 2500?

That depends on the car in front of you, not just the model year. The 2021 Chevrolet Silverado 2500 has an elevated transmission complaint pattern, so treat it as a car that needs proof: service records showing transmission work, a cold-start test drive, and an independent pre-purchase inspection focused on the transmission. A well-kept or already-repaired example can be a fine car; an unknown one is a gamble.

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Experimental model-level information. This is not a vehicle inspection, vehicle-history report, financial advice or purchase recommendation. It describes patterns across a model year, not the condition of any individual vehicle.