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GMC Sierra 2500

2020 only

102 classified complaints 9 recalls

2020 GMC Sierra 2500 have 102 classified complaints on record for that year specifically, plus 9 recalls. The most common issue in this year is Body control and other modules, typically surfacing around 212 miles.

Computed directly from stored federal records for 2020 model years only — not blended with the rest of this vehicle's production run. See the full GMC Sierra 2500 report for every year combined.

Where this year fits

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2020

2021

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2024

Complaints filed per individual model year — highlighted bars link to their own dedicated page.

What breaks, and when — 2020 only

Body control and other modules · Electrical 16 complaints

Median onset: 212 miles.

Tends to show up earlier than this model's other issues. · More common in newer model years.

Harsh, delayed or erratic shifting · Transmission 8 complaints

Median onset: 114,000 miles.

Tends to show up later than this model's other issues. · More common in newer model years.

Which other vehicles have automatic transmission problems? →
ABS module and wheel speed sensors · Brakes 6 complaints

Median onset: 571 miles.

Tends to show up earlier than this model's other issues. · More common in older model years. · Typical repair: $660–$1,260 nationally.

Diesel aftertreatment: DPF, EGR, DEF and SCR · Exhaust and emissions 6 complaints

Onset mileage not consistently reported.

Typical repair: $1,360–$4,270 nationally.

Integrated trailer brake controller · Towing and hauling 6 complaints

Onset mileage not consistently reported.

Typical repair: $340–$840 nationally.

Water leaks and seals · Body and interior 5 complaints

Median onset: 69,000 miles.

More common in newer model years.

Automatic transmission internals · Transmission 5 complaints

Median onset: 145,500 miles.

Tends to show up later than this model's other issues. · More common in newer model years. · Typical repair: $2,910–$5,410 nationally.

Which other vehicles have automatic transmission problems? →
Wiring harness, grounds and connectors · Electrical 4 complaints

Onset mileage not consistently reported.

More common in newer model years.

From owner-filed complaints to NHTSA, not independently verified. Federal mileage reporting on recent complaints is sparse — see how it works. Cost ranges are national estimates from book labor hours and parts pricing, not this vehicle's actual repair history — they don't account for your location or shop type.

Cost estimator: what will this one cost you?

Enter the car's year and mileage. See which known problems are due in your next 3 years, what each costs at your state's labor rates, which ones to ask the seller about, and routine maintenance to budget for.

Sources: NHTSA Office of Defects Investigation — complaints and recalls, scoped to 2020 model year. See the full GMC Sierra 2500 report for every year and full specs/safety data.