GMC Sierra 1500
2020 only
2020 GMC Sierra 1500 have 671 classified complaints on record for that year specifically, plus 12 recalls. The most common issue in this year is Internal engine (bearings, pistons, rings), typically surfacing around 83,550 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 1500 report for every year combined.
Where this year fits
What breaks, and when — 2020 only
Median onset: 83,550 miles.
Tends to show up later than this model's other issues. · More common in newer model years.
Median onset: 3,000 miles. 1.8% of these reported an injury, a death, or a crash with fire.
Tends to show up earlier than this model's other issues. · More common in newer model years.
Median onset: 41,624 miles.
Median onset: 31,000 miles. 2.9% of these reported an injury, a death, or a crash with fire.
More common in older model years.
Median onset: 32,000 miles. 3.2% of these reported an injury, a death, or a crash with fire.
More common in newer model years.
Median onset: 70,000 miles.
Tends to show up later than this model's other issues. · Typical repair: $1,360–$4,270 nationally.
Median onset: 75,450 miles.
Tends to show up later than this model's other issues. · Typical repair: $2,910–$5,410 nationally.
Median onset: 4,395 miles.
Tends to show up earlier than this model's other issues. · More common in older model years. · Typical repair: $660–$1,260 nationally.
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 1500 report for every year and full specs/safety data.