Most Mitsubishi Sigma VINs open with JA3 (Japan, 1990). Position 11, the plant, reads Y; a 1990 Sigma carries L in position 10. Decoding one also brings up 1 recall campaign and 1 owner complaints from NHTSA.
Got a VIN from another make? The free VIN decoder reads any 17-character VIN, whatever built it.
How to read a Mitsubishi Sigma VIN
Every Mitsubishi Sigma VIN follows the same 17-character layout:
| 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. |
Mitsubishi Sigma VIN prefixes, and when each one was used
Every Mitsubishi Sigma we have on record, all from 1990, opens with the same three characters, JA3:
| VIN starts with | Years seen | Built in | Vehicle type | VINs on record |
|---|---|---|---|---|
| JA3 | 1990–1990 | Japan | Passenger Car |
Counted from 1 dated Mitsubishi Sigma VINs attached to NHTSA complaints, each code checked against the NHTSA manufacturer registry.
Model-year codes for the Mitsubishi Sigma
Position 10 carries the model year, skipping I, O, Q, U and Z. The alphabet comes round every 30 years, which the Mitsubishi Sigma has not yet outlived: its 2 years still map one-to-one. All 2 model years of the Mitsubishi Sigma, 1989 to 1990, with the character each one carries:
| Model year | VIN character (position 10) | Same character as |
|---|---|---|
| 1990 | L | — |
| 1989 | K | — |
What a decoded Mitsubishi Sigma VIN gets you
Behind a Mitsubishi Sigma VIN: 1 owner complaints and every recall campaign NHTSA has on record:
| Data | For this model | Source |
|---|---|---|
| Recall campaigns | 1 campaigns | NHTSA |
| Owner complaints | 1 filed | NHTSA |
| Fuel economy | 18 mpg combined (avg) | EPA |
| Model years covered | 2 years | ForCar catalog |
Where to find the VIN on a Mitsubishi Sigma
Four places on a Mitsubishi Sigma carry it, and all four must read the same — a mismatch is where fraud shows itself first.
| 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 Mitsubishi Sigma VIN decoder free?
Yes, with no account. Besides the year, plant and build characters it shows 1 recall campaign and 1 owner complaints NHTSA holds on the Mitsubishi Sigma.
What year is my Sigma by its VIN?
Read position 10: a 1990 Sigma carries L, a 1989 Sigma carries K.
Where was my Sigma built?
Position 11 names the plant. Across 1 dated Mitsubishi Sigma VINs it reads Y 100%.
What if the VIN on the dashboard doesn't match the door jamb?
On a Mitsubishi Sigma check the prefix first: most genuine ones open with JA3. A plate that starts with anything else, or disagrees with the other copies of the number, needs documents checked before any money changes hands.
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