GMC Sierra 1500 — model-year timeline & key facts
Published · Researched 2026-09-21
Compiled from the GMC Sierra 1500 deep-research dossier; researched 2026-09-21. UNVERIFIED flags from the source research are preserved verbatim.
Key facts
| Powertrain | 2.7L I4T / 5.3L V8 / 6.2L V8 / 3.0L I6 diesel |
|---|---|
| Power | 420 |
| Range | N/A |
| Battery | N/A |
| 0–100 km/h | 5.7 |
| Fast charge | N/A |
| New price US | ~38000 |
| New price EU | N/A |
| New price CN | N/A |
| Used price signal | ~$44,500 avg (2021-2025, CarGurus Sep 2026) |
| Value call | 2025 LZ0 diesel or 5.3L; Denali premium only if interior matters |
| Sweet-spot year | 2025 |
| Years to avoid | 2021; 2021-2024 6.2L |
| Reliability flag | red (6.2L L87) |
| Biggest risk | L87 6.2L bearing failure under open NHTSA engineering analysis; DFM lifter batches |
| Community verdict | Nicest version of the truck, same investigation — pay the Denali tax only for the interior |
Model-year timeline 2021–2026
| Year | Generation / changes / reliability / used prices |
|---|---|
| 2021 | T1 carryover (pre-refresh) · Same 4-engine menu · COVID lifter batches; DFM complaints · L87 population; 10-spd leak recall · ~$35,400 avg |
| 2022 | Refresh: new interior, 13.4" screen, AT4X, Denali Ultimate · LZ0 diesel arrives · Best-regarded year; lifter batches continue · L87 population · ~$42,600 avg |
| 2023 | Carryover · LZ0 full availability · Steady; diesel praised · L87 population; 10-spd leak recall (Nov 2024) · ~$45,700 avg |
| 2024 | Carryover · Same · Quiet; shudder threads persist · L87 population (last year); Nov 2024 10-spd recall · ~$48,900 avg |
| 2025 | Minor updates · Same · Outside L87 window · Feb 2026 SW re-recall (2020-22s only) · ~$50,800 avg |
| 2026 | Carryover (2027 new V8s announced, DFM retained) · Same · Too early; lifter case documented (carproblemzoo) · None new to date · New (MSRP UNVERIFIED) |
Sweet-spot year: 2025
Years to skip: 2021; 2021-2024 6.2L