2021 Chevrolet Suburban defect investigations
Investigations by NHTSA’s Office of Defects Investigation that name the 2021 Chevrolet Suburban. An investigation is how complaints can become a recall: complaints → investigation → (sometimes) TSB → recall.
- Loss of motive power due to engine failure post recall remedyRecall Query RQ26001 · opened Jan 16, 2026 · still open
The Office of Defects Investigation (ODI) has received 36 Vehicle Owner Questionnaires (VOQs) alleging engine failure in vehicles subject to Recall 25V274. In each VOQ, the engine had the recall remedy completed prior to the reported failure incident. Recall 25V-274 addresses vehicles equipped with a L87 6.2L V8 gas en…
- Loss of motive power due to engine failureEngineering Analysis EA25007 · opened Oct 23, 2025 · still open
The Office of Defects Investigation (ODI) has received 1,157 reports of engine bearing failure failures in the L87 6.2L engine produced by General Motors (GM). Of the 1,157 reports received, 173 are outside of the scope of recall 25V-274. These engines are installed in Model Years (MY) 2019–2024 Chevrolet Silverado 150…
- Loss of motive power due to engine failurePreliminary Evaluation PE25001 · opened Jan 16, 2025 · closed Oct 23, 2025 · led to recall 25V274
On January 16, 2025, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE25001 after receiving complaints and field reports concerning engine failures in MY2019-2024 GM’s full-size truck and SUV T1XX platform equipped with the L87 6.2L V8 engine. These complainants alleged engine bearing failures …
- Air Bag MalfunctionPreliminary Evaluation PE21010 · opened Apr 9, 2021 · closed Aug 24, 2023
On April 9, 2021, the Office of Defects Investigations (ODI) opened PE21-010 to investigate instances of air bag malfunction indicator light (MIL) illumination and potential for frontal air bag non-deployment in several vehicles manufactured by General Motors (GM). The vehicles included model year (MY) 2020 through 202…