2021 GMC Sierra 3GTN8AEH-M — group A

29 vehicles sit in group A of this build. Cars are filed by a fixed rule based on the VIN, so a car never moves between groups.

What 3GTN8AEH-M means

3GT
the World Manufacturer Identifier GMC registered — assembled in Mexico
N8AEH
together encode the Sierra line — Pickup, 4.3L 6cyl — 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
differ on every car: check digit, plant code and the serial number

Vehicles in this group

29 vehicles in this group, in fixed VIN order.

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