Equipment unit · VIN-decoded · NHTSA vPIC

1989 Great Dane Trailers

1GRDM962XKH101057 · Trailer · TRAILER
Freedom
Carriers run under2
36 mo
Inspections11
all-time
OOS inspections6
of 11
First seenAug 15, 2023
IL
Last seenAug 22, 2026
CA
Inspected under 2 different carriers in 36 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
1GRDM962XKH101057
Make
Great Dane Trailers
Model
Great Dane Trailers
Model year
1989
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 17, 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
DM962

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1989 or 2019

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

North American serial sequence
101057

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 · 3,507 decoded VINs at 100.0% prefix purity.

Model
Great Dane Trailers

Prefix basis · 3,507 decoded VINs at 100.0% prefix purity.

Model line
Freedom

Sourced label · prefix basis 3,507 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
1989

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 · Aug 15, 2023 – Aug 22, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 22, 2026CAIII · Driver-only1OOSSIERRAS TRANSPORTATION INC 18040814SE9219/CA
Aug 13, 2026WAII · Walk-around15OOSSIERRAS TRANSPORTATION INC 18040814SE9219/CA
Jul 18, 2026CAII · Walk-around2SIERRAS TRANSPORTATION INC 18040814SE9219/CA
May 26, 2026CAII · Walk-around7SIERRAS TRANSPORTATION INC 18040814SE9219/CA
Apr 6, 2026CAII · Walk-around12OOSBOLTARES TRUCKING INC 33043434SE9219/CA
Dec 21, 2024CAIII · Driver-only0BOLTARES TRUCKING INC 33043434SE9219/CA
Dec 20, 2024CAV · Vehicle-only2BOLTARES TRUCKING INC 33043434SE9219/CA
Jun 13, 2024CAI · Full4OOSBOLTARES TRUCKING INC 33043434SE9219/CA
May 23, 2024UTII · Walk-around1OOSBOLTARES TRUCKING INC 33043434SE9219/CA
Feb 10, 2024CAI · Full8OOSBOLTARES TRUCKING INC 33043434SE9219/CA
Aug 15, 2023ILIII · Driver-only0BOLTARES TRUCKING INC 33043434SE9219/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SIERRAS TRANSPORTATION INC1804081May 26, 2026Aug 22, 20264CA
BOLTARES TRUCKING INC3304343Aug 15, 2023Apr 6, 20267CA
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.
4SE9219CA2SIERRAS TRANSPORTATION INCMay 26, 2026Aug 22, 20264
4SE9219CABOLTARES TRUCKING INCAug 15, 2023Apr 6, 20267
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 17, 2026