2009 Buick Lucerne 1G4HD57M-9 — all VINs
3,420 vehicles carry this factory build. Cars are filed by a fixed rule based on the VIN, so a car never moves between groups.
What 1G4HD57M-9 means
- 1G4
- the World Manufacturer Identifier Buick registered — assembled in the United States
- HD57M
- together encode the Lucerne line — Sedan, 3.9L 6cyl — as Buick filed it, these five characters are read as one block, not letter by letter
- 9
- in position 10 — model year 2009
- 9, 11–17
- vehicle-specific fields: check digit, plant code and production sequence
Groups
Too many vehicles to list on one page, so they are split by the next character of a fixed code derived from the VIN. Each group keeps its cars for good.