2021 GMC Sierra 1GTR9CEK-M — all VINs
1,100 vehicles carry this factory build. Cars are filed by a fixed rule based on the VIN, so a car never moves between groups.
What 1GTR9CEK-M means
- 1GT
- the World Manufacturer Identifier GMC registered — assembled in the United States
- R9CEK
- together encode the Sierra line — Pickup, 2.7L 4cyl, Four-wheel drive — as GMC filed it, these five characters are read as one block, not letter by letter
- M
- in position 10 — model year 2021
- 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.