Reliability AnalysisBased on known issue patterns, repair cost data, and ownership trends · How we score

2021 Chevrolet Silverado 2500 Reliability ReportCommon Problems, Repair Costs & Expert Verdict

88/ 100
LOW RISK

Grade: A-

A powerhouse of reliability and capability, demanding respect and diligent care for its long-term health.

Full system breakdown + what I would do

Should You Buy the 2021 Chevrolet Silverado 2500?

The 2021 Chevrolet Silverado 2500 stands as a formidable workhorse, offering robust capability and impressive longevity for owners who prioritize diligent maintenance. With either the gas V8 or the powerful Duramax diesel, this truck is built to last, making it a sound investment for serious towing and hauling. While modern truck complexity means occasional electronic quirks, its core mechanicals are exceptionally resilient.

Biggest Strengths

  • Heavy-duty powertrains (L8T Gas and L5P Duramax) are highly durable
  • Robust frame and suspension built for demanding tasks
  • Allison 10-speed transmission is a benchmark for reliability

Top Risk Areas

The systems that break first on the 2021 Chevrolet Silverado 2500. Mileage windows, repair costs, and fix-before-you-buy notes are in the full report.

1
Diesel Emissions System (L5P Duramax)moderate
2
Infotainment/Electrical Systemminor
3
Front Suspension & Steering Componentsmoderate
Typical mileage, cost ranges, and the exact what-to-check list are in the full report.

NHTSA Recalls

6 recalls on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.

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 the 20" accessory road tire (RPO REM) or the 18" accessory road tire (RPO Q2V). Operating the spare tire with other 20" or 18" tires can prevent the Anti-Lock Braking System (ABS) from engaging.

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 modules (EBCM) replaced during vehicle assembly. The bolts that attach the brake pressure modulator valve (BPMV) assembly may not be properly tightened, which could fail to seal the two sub-assemblies and allow water intrusion.

What breaks on the 2021 Chevrolet Silverado 2500?

Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.

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Chevrolet Silverado 2500 by Year

Compare reliability scores across nearby years of the Chevrolet Silverado 2500. Click any year for its full report.

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Relevant Products for Your 2021 Chevrolet Silverado 2500

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Frequently Asked Questions

Final Step

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