Equipment unit · VIN-decoded · NHTSA vPIC

2010 Great Dane Trailers

1GRDM0621AH712489 · Trailer · TRAILER
Freedom
Carriers run under3
26 mo
Inspections6
all-time
OOS inspections2
of 6
First seenFeb 16, 2024
MI
Last seenApr 4, 2026
AZ
Inspected under 3 different carriers in 26 months
A unit that bounces between many operators can indicate slip-seating, heavy sub-haul, or double-brokering. Review the carrier timeline below for load integrity — context for human judgment, not a verdict.
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1GRDM0621AH712489
Make
Great Dane Trailers
Model
Great Dane Trailers
Model year
2010
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 4, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
Decode evidence & sources

Deterministic structure

These fields come directly from VIN positions and the published checksum calculation, with zero store IO.

World manufacturer identifier
1GR

Deterministic · VIN positions 1–3.

Vehicle descriptor section
DM062

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1980 or 2010

Position 10 repeats every 30 years; both candidates are retained and neither is silently selected.

North American serial sequence
712489

Deterministic · positions 12–17 for a North American WMI.

Sourced platform inference

The prefix store publishes only at support ≥ 3 and purity ≥ 90%. Prefix confidence is shown beside every established platform claim.

Make
GREAT DANE TRAILERS

Prefix basis · 855 decoded VINs at 100.0% prefix purity.

Model
Great Dane Trailers

Prefix basis · 855 decoded VINs at 100.0% prefix purity.

Model line
Freedom

Sourced label · prefix basis 855 decoded VINs at 100.0% prefix purity.

Generation
Not established

No sourced generation label is established.

No source established for this field.

Cab type
Not established

No sourced cab label is established.

No source established for this field.

Federal observation (NHTSA vPIC)

What the federal corpus observed directly for this exact VIN — independent of, and sometimes more specific than, the prefix-level inference above.

Observed model year
2010

Observed directly for this VIN via NHTSA vPIC.

Observed make
GREAT DANE TRAILERS

Observed directly for this VIN via NHTSA vPIC.

Observed model
Great Dane Trailers

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Trailer

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRAILER

Observed directly for this VIN via NHTSA vPIC.

GVWR
Not established

Observed directly for this VIN via NHTSA vPIC.

Not established

  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Feb 16, 2024 – Apr 4, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 4, 2026AZIII · Driver-only6OOSCMC COSTA TRANSPORT LLC 4363126QB1OPV/FL
Aug 15, 2025LAIII · Driver-only1GRP TRUCKING LLC 3822456QB10PV/FL
Jun 18, 2024LAII · Walk-around3ROADS KNIGHT TRANSPORT INC 3955364QA33JI/FL
Apr 29, 2024FLII · Walk-around3OOSROADS KNIGHT TRANSPORT INC 3955364QA33JI/FL
Mar 4, 2024OHIII · Driver-only7ROADS KNIGHT TRANSPORT INC 3955364QA33JI/FL
Feb 16, 2024MIIII · Driver-only2ROADS KNIGHT TRANSPORT INC 3955364QA33JI/FL
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
CMC COSTA TRANSPORT LLC4363126Apr 4, 2026Apr 4, 20261FL
GRP TRUCKING LLC3822456Aug 15, 2025Aug 15, 20251FL
ROADS KNIGHT TRANSPORT INC3955364Feb 16, 2024Jun 18, 20244FL
Names are left-joined from the FMCSA census; a DOT with no census match falls back to its number.
04

Plate & unit-number history

The same truck under different plate registrations across carriers

PlateState / prov.Unit no.CarrierDate rangeInsp.
QB1OPVFLCMC COSTA TRANSPORT LLCApr 4, 2026Apr 4, 20261
QB10PVFLGRP TRUCKING LLCAug 15, 2025Aug 15, 20251
QA33JIFL2ROADS KNIGHT TRANSPORT INCFeb 16, 2024Jun 18, 20244
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 4, 2026