1988 Great Dane Trailers
Decoded identity
From the 17-character VIN via NHTSA vPIC
- VIN
- 1GRDM9022JM011903
- Make
- Great Dane Trailers
- Model
- Great Dane Trailers
- Model year
- 1988
- Body class
- Trailer
- Vehicle type
- TRAILER
- GVWR
- Not decoded
- Decoded at
- Aug 22, 2026
Decode evidence & sources
Deterministic structure
These fields come directly from VIN positions and the published checksum calculation, with zero store IO.
Position 10 repeats every 30 years; both candidates are retained and neither is silently selected.
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.
Prefix basis · 351 decoded VINs at 100.0% prefix purity.
Prefix basis · 351 decoded VINs at 100.0% prefix purity.
Sourced label · prefix basis 351 decoded VINs at 100.0% prefix purity.
No sourced generation label is established.
No source established for this field.
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 directly for this VIN via NHTSA vPIC.
Observed directly for this VIN via NHTSA vPIC.
Observed directly for this VIN via NHTSA vPIC.
Observed directly for this VIN via NHTSA vPIC.
Observed directly for this VIN via NHTSA vPIC.
Observed directly for this VIN via NHTSA vPIC.
VIN-level rule claims
Rules published for individual VIN positions beyond the prefix — applied with the WMI, prefix, and model-year guards each rule was validated under. Year-scoped rules were checked against model year 1988, established by the federal observation agreeing with a position-10 candidate.
The VIN-level rule resolver did not return a reliable response
Deterministic validation and the prefix-level results above are unaffected. An outage here is not evidence that no VIN-level rule applies.
Not established
- generation
- cab type
These are withheld claims, not negative findings.
Inspection history
Every roadside inspection of this VIN, newest first · Mar 28, 2024 – Apr 9, 2024
Carriers this unit has run under
0 distinct carriers · grouped by DOT · newest activity first