2026 GMC Sierra 1500 check engine light reports

5 NHTSA complaints describe persistent or recurring check-engine warnings on the 2026 GMC Sierra 1500 — roughly 7% of all complaints for this model year.

Check engine light reports

share of complaints

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median reported mileage (all complaints)

Components reported on this vehicle

Engine 44 Power Train 17 Electrical System 8 Forward Collision Avoidance 6 Fuel/propulsion System 4 Steering 4

Check engine light in other Sierra 1500 years

2025 Sierra 1500	7
2024 Sierra 1500	23
2023 Sierra 1500	35
2022 Sierra 1500	47
2021 Sierra 1500	90
2020 Sierra 1500	56
2019 Sierra 1500	71
2018 Sierra 1500	15
2017 Sierra 1500	25
2016 Sierra 1500	14

Sierra 1500 check engine light by year →

Other symptoms owners describe on the 2026 GMC Sierra 1500

Stalling 7 Loss of power 7

Symptom counts come from keyword analysis of complaint narratives. One complaint can describe several symptoms, and classification is approximate — read the underlying reports on the full 2026 GMC Sierra 1500 report before drawing conclusions.

Check engine light across all vehicles →