The Lane Check

Home › Cars › Chevrolet › Silverado 2500 › 2021

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 1,790 model years we track (2010–2023).

NHTSA data checked October 3, 2026

The VIN is on the listing, the driver’s door jamb, and the bottom of the windshield on the driver’s side.

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

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

How the 2021 compares with other Chevrolet Silverado 2500 years

Of the 14 Chevrolet Silverado 2500 years with enough complaints to score, the 2021 is the 6th-worst on engine and transmission share (44%). The worst is the 2023 (56%), the best the 2016 (26%). By volume, the 2021 drew 87 complaints (37 drivetrain), against 108 for the 2020 and 95 for the 2022.

Chevrolet Silverado 2500 years to avoid and best years →

In the full report

The rest of the picture on the 2021 Chevrolet Silverado 2500

  • The mileage where it happens. When owners of the 2021 Chevrolet Silverado 2500 said the problem showed up, and the range most of them fell in.
  • What the repair costs. Typical transmission repair ranges, to price into your offer.
  • Cleaner alternatives. Similar cars and nearby years with a better record.
  • Up to 15 owner reports, with the ones about your car's own engine first.
  • What to ask the seller and what to check on the test drive, for this car.
  • Two cars side by side, if you are deciding between them.

What one owner 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…

One of 37 drivetrain complaints. The full report shows up to 15, with quotes about the engine in the car you are looking at first.

2021 Chevrolet Silverado 2500 transmission recalls

Yes. NHTSA lists 1 recall campaign on the 2021 Chevrolet Silverado 2500 involving the engine, transmission or fuel system, out of 6 in total. A recall is the manufacturer admitting a defect and paying to fix it; whether a specific car still has one open depends on its VIN, which the full report checks. The owner complaints above are a separate record and often point at problems that never became a recall.

power train: automatic transmission: control module: software24V797000 · Oct 2024

General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Silverado 1500, 2500, 3500, GMC Sierra 1500, 2500, 3500, 2021 Cadillac Escalade, Escalade ESV, Chevrolet Tahoe, Suburban, GMC Yukon, and Yukon XL vehicles equipped with diesel engines. The transmission control valve may fail and cause the rear wheels to lock-up.

Risk: Rear wheel lock-up can increase the risk of a crash.

Fix: Dealers will install new transmission control module software, free of charge. GM will provide a special coverage program to cover the repair of transmissions that are identified by the remedy software as containing a…

5 other recalls on this model year (airbags, lighting, brakes and the rest)
latches/locks/linkages: tailgate: latch24V060000 · Feb 2024
General Motors, LLC (GM) is recalling certain 2020-2024 Chevrolet Silverado 2500, 3500, GMC Sierra 2500 and 3500 vehicles equipped with power-unlatching tailgates. The tailgate's electronic…
service brakes, hydraulic: power assist: electric: control module21V758000 · Sep 2021
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 modules (EBCM) replaced…
tires: temporary/emergency spare tire21V578000 · Jul 2021
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 the 20" accessory road tire…
seat belts20V811000 · Dec 2020
General Motors, LLC (GM) is recalling certain 2020 Chevrolet Bolt EV and 2021 GMC Canyon and Sierra 1500, 2500 and 3500, Yukon, Yukon XL, Cadillac Escalade and Escalade ESV and Chevrolet Blazer,…
seat belts20V792000 · Dec 2020
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 Chevrolet Silverado 2500 and…

Source: NHTSA recall campaigns filed against this year, make and model. Checked October 3, 2026.

Checking one particular 2021 Chevrolet Silverado 2500? This page is about the model year. Accidents, title brands and odometer records belong to the individual car, and that is what a vehicle history report covers.

Get a history report from EpicVIN Before you pay: EpicVIN’s $1 offer is a 3-day trial (up to 5 reports) that renews at $49.99 a month unless you cancel. Other plans are listed under “View all our packages” at checkout. We may earn a commission if you buy through this link. It does not change what this page reports.

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.

What is the most common problem with the 2021 Chevrolet Silverado 2500?

Going by NHTSA owner complaints, the most common problem filed against the 2021 Chevrolet Silverado 2500 is power train: 29 of 87 complaints (33%) name it, followed by electrical system (17) and service brakes (12). A complaint can name more than one component, so these overlap.

Is the 2021 Chevrolet Silverado 2500 reliable?

On the engine and transmission, owner complaints point to a weak spot: 44% of relevant complaints filed with NHTSA concern the drivetrain (high signal). That is worse than 55% of the 1,790 model years we track. Among the 14 Chevrolet Silverado 2500 years we score, it ranks 6th-worst. Complaint data describes the model year, not one car, and it says nothing about trim, paint or electronics outside the drivetrain; an independent inspection still decides it.

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

Yes. NHTSA lists 1 recall campaign on the 2021 Chevrolet Silverado 2500 involving the engine, transmission or fuel system, out of 6 in total: 24V797000 (power train: automatic transmission: control module: software). 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. Every year side by side: https://thelanecheck.com/cars/chevrolet-silverado-2500

Have the VIN?Paste it and get the full report for that car. First report free, then a 30-day pass covers a whole car search.

Check a VIN

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.