A Cadillac Seville VIN opens with 1G6 (the United States). Position 11, the plant, shows 7 codes, most often U (93%); a 2004 Seville carries 4 in position 10. Decoding one also brings up 30 recall campaigns and 649 owner complaints from NHTSA.
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How to read a Cadillac Seville VIN
Here is a real 2003 Cadillac Seville VIN from our database, split into its parts:
VIN 1G6KY54973U134124 — decoded free on its own report page.
| Position | Section | What it tells you |
|---|---|---|
| 1–3 | WMI | World Manufacturer Identifier — country, manufacturer and vehicle type. |
| 4–8 | VDS | Vehicle Descriptor Section — body style, engine, restraint system, series. |
| 9 | Check digit | A calculated digit that validates the whole VIN. Wrong digit = wrong VIN. |
| 10 | Model year | One character for the model year. Letters skip I, O, Q, U and Z. |
| 11 | Plant | The assembly plant that built the car. |
| 12–17 | Serial | Sequential production number of this exact vehicle. |
Where Cadillac Seville VINs say the car was built
The first three characters are the World Manufacturer Identifier. Across 5 Cadillac Seville VINs we have on file, these are the codes that actually show up — and the plants behind them:
| WMI | Built in | Vehicle type | VINs on file | Share |
|---|---|---|---|---|
| 1G6 | United States | — | 5 |
Country and vehicle type come from the NHTSA manufacturer registry. Share is measured across VINs decoded on ForCar, not production volume.
Model-year codes for the Cadillac Seville
Position 10 carries the model year, skipping I, O, Q, U and Z. The alphabet comes round every 30 years, which the Cadillac Seville has not yet outlived: its 24 years still map one-to-one. All 24 model years of the Cadillac Seville, 1981 to 2004, with the character each one carries:
| Model year | VIN character (position 10) | Same character as |
|---|---|---|
| 2004 | 4 | — |
| 2003 | 3 | — |
| 2002 | 2 | — |
| 2001 | 1 | — |
| 2000 | Y | — |
| 1999 | X | — |
| 1998 | W | — |
| 1997 | V | — |
| 1996 | T | — |
| 1995 | S | — |
| 1994 | R | — |
| 1993 | P | — |
| 1992 | N | — |
| 1991 | M | — |
| 1990 | L | — |
| 1989 | K | — |
| 1988 | J | — |
| 1987 | H | — |
| 1986 | G | — |
| 1985 | F | — |
| 1984 | E | — |
| 1983 | D | — |
| 1982 | C | — |
| 1981 | B | — |
Body and engine characters we see on Cadillac Seville VINs
Positions 4–8 are the maker's own build code. Across 5 VINs the Cadillac Seville uses 7 different characters in positions 4, 5 and 8:
| Position | Characters seen on real VINs | Variety |
|---|---|---|
| 4 — body | K (100%) | 1 distinct |
| 5 — series | S (60%) · Y (40%) | 2 distinct |
| 8 — engine | 9 (40%) · 8 (20%) · B (20%) · Y (20%) | 4 distinct |
What a decoded Cadillac Seville VIN gets you
Behind a Cadillac Seville VIN: 649 owner complaints and every recall campaign NHTSA has on record:
| Data | For this model | Source |
|---|---|---|
| Recall campaigns | 30 campaigns | NHTSA |
| Owner complaints | 649 filed | NHTSA |
| Fuel economy | 18 mpg combined (avg) | EPA |
| Model years covered | 24 years | ForCar catalog |
Where to find the VIN on a Cadillac Seville
A Cadillac Seville VIN normally opens with 1G6; the full number sits in four places, and all four must match.
| Where | How to see it | Why it matters |
|---|---|---|
| Dashboard, driver side | Through the windshield, bottom corner | Easiest to check before you touch anything |
| Driver door jamb | Open the door, sticker on the pillar | Also lists tire pressures and build date |
| Under the hood | Firewall or strut tower plate | Survives a windshield replacement |
| Title and insurance | Paper documents | Must match the car — a mismatch means fraud or a swapped panel |
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Frequently asked questions
Is this Cadillac Seville VIN decoder free?
Yes, with no account. Besides the year, plant and build characters it shows 30 recall campaigns and 649 owner complaints NHTSA holds on the Cadillac Seville.
What year is my Seville by its VIN?
Read position 10: a 2004 Seville carries 4, a 2003 Seville carries 3, a 2002 Seville carries 2.
Where was my Seville built?
Position 11 names the plant. Across 644 dated Cadillac Seville VINs it reads U 93%, 4 2%, 8 1%, E 1% and 3 rarer codes.
What does position 4 mean on a Cadillac Seville VIN?
It is part of the maker's own build code, so read it against this model, not a generic chart. On 5 Cadillac Seville VINs here, K is the most common character in position 4, on 100% of them.
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