2020 GMC SIERRA 1500 — Complaint #2174420
Open-data reference.
NHTSA Complaint about ENGINE filed February 6, 2026
NHTSA complaint #2174420 (ODI reference 11716354) concerns a 2020 GMC SIERRA 1500 and was filed on February 6, 2026. The owner reports the failure occurred on June 16, 2025. The report was geocoded to Colorado based on the filer's self-reported location. The affected component is categorized as engine, one of NHTSA's standardized taxonomy codes used to group defect patterns across make, model, and year.
The filer flagged the following severity indicators: crash: no, fire: no, injuries: 0, fatalities: 0. No crash, fire, or fatality was associated with this report, which places it in the early-warning stream rather than the priority-review stream. Because a VIN was supplied, this complaint is tied to a specific vehicle and not just a model-year cohort.
Individual complaints are consumer-submitted and unverified by NHTSA engineers — the agency's role at this stage is to collect, index, and make them searchable. What matters for federal action is the pattern: when many owners of the same GMC SIERRA 1500 cohort independently describe similar engine failures, defect investigators have grounds to open a PE and request manufacturer data. Related filings for the same vehicle and component appear below, and the detail page for the full 2020 GMC SIERRA 1500 shows the complete component-level complaint distribution alongside any active investigations or recalls.
Complaint Description
I purchased my 2020 gmc sierra 1500 6.2L in September 2024 with 80,000 miles. 9 months later the lifters gave out. Had them replaced and 6 months later, the lifters again were bad and was knocking. They are now replacing the lifters and cam. I am so disappointed that this is happening. I hear that the 2019 and 2020 was not included in this recall! Why not!! If itâs still doing the same thing and it is the same engine, why isnât my truck in this recall? I would like to know why? If it is doing the same thing as the recall, shouldnât it be covered by this recall? Best, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Complaint Details
| NHTSA Complaint ID | 2174420 |
| ODI Number | 11716354 |
| Date Filed | February 6, 2026 |
| Failure Date | June 16, 2025 |
| VIN | 3GTP9EEL0LG |
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Source: NHTSA Vehicle Complaints Database. Component taxonomy and severity codes are standardized by NHTSA Office of Defects Investigation.
Read our methodology — how this data is sourced, computed, and verified.