Buick Reatta VIN Decoder

Decode any Buick Reatta VIN free: model year, plant, body and engine codes, read from 5 real Reatta VINs.

NHTSA · ISO 3779 · 1990–1991 · Updated Nov 4, 2026
Quick answer

A Buick Reatta VIN opens with 1G4 (the United States). Position 11, the plant, reads B; a 1991 Reatta carries M in position 10. Decoding one also brings up 6 recall campaigns and 41 owner complaints from NHTSA.

How to read a Buick Reatta VIN

Here is a real 1991 Buick Reatta VIN from our database, split into its parts:

1–3 · WMI1G4
4–8 · VDSEC13L
9 · Check8
10 · YearM
11 · PlantB
12–17 · Serial900949

VIN 1G4EC13L8MB900949 — decoded free on its own report page.

FIG.01·Buick Reatta VIN structure
PositionSectionWhat it tells you
1–3WMIWorld Manufacturer Identifier — country, manufacturer and vehicle type.
4–8VDSVehicle Descriptor Section — body style, engine, restraint system, series.
9Check digitA calculated digit that validates the whole VIN. Wrong digit = wrong VIN.
10Model yearOne character for the model year. Letters skip I, O, Q, U and Z.
11PlantThe assembly plant that built the car.
12–17SerialSequential production number of this exact vehicle.
ROWS 6·SOURCE ISO 3779 / NHTSA vPIC

Where Buick Reatta VINs say the car was built

The first three characters are the World Manufacturer Identifier. Across 5 Buick Reatta VINs we have on file, these are the codes that actually show up — and the plants behind them:

FIG.02·Buick Reatta assembly by VIN prefix
WMIBuilt inVehicle typeVINs on fileShare
1G4United States—5100%
ROWS 1·SOURCE NHTSA vPIC · ForCar decoded VINs

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 Buick Reatta

Position 10 carries the model year, skipping I, O, Q, U and Z. The alphabet comes round every 30 years, which the Buick Reatta has not yet outlived: its 4 years still map one-to-one. All 4 model years of the Buick Reatta, 1988 to 1991, with the character each one carries:

FIG.03·Buick Reatta VIN model-year codes
Model yearVIN character (position 10)Same character as
1991M—
1990L—
1989K—
1988J—
ROWS 4·SOURCE ISO 3779

Body and engine characters we see on Buick Reatta VINs

Positions 4–8 are the maker's own build code. Across 5 VINs the Buick Reatta uses 4 different characters in positions 4, 5 and 8:

FIG.04·Buick Reatta VIN body and engine characters
PositionCharacters seen on real VINsVariety
4 — bodyE (100%)1 distinct
5 — seriesC (100%)1 distinct
8 — engineC (80%) · L (20%)2 distinct
ROWS 3·SOURCE ForCar decoded VINs

What a decoded Buick Reatta VIN gets you

Behind a Buick Reatta VIN: 41 owner complaints and every recall campaign NHTSA has on record:

FIG.05·Buick Reatta data available by VIN
DataFor this modelSource
Recall campaigns6 campaignsNHTSA
Owner complaints41 filedNHTSA
Fuel economy20 mpg combined (avg)EPA
Model years covered4 yearsForCar catalog
ROWS 4·SOURCE NHTSA · EPA · ForCar

Where to find the VIN on a Buick Reatta

A Buick Reatta VIN normally opens with 1G4; the full number sits in four places, and all four must match.

FIG.06·Buick Reatta VIN locations
WhereHow to see itWhy it matters
Dashboard, driver sideThrough the windshield, bottom cornerEasiest to check before you touch anything
Driver door jambOpen the door, sticker on the pillarAlso lists tire pressures and build date
Under the hoodFirewall or strut tower plateSurvives a windshield replacement
Title and insurancePaper documentsMust match the car — a mismatch means fraud or a swapped panel
ROWS 4·SOURCE ForCar
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Frequently asked questions

Is this Buick Reatta VIN decoder free?

Yes, with no account. Besides the year, plant and build characters it shows 6 recall campaigns and 41 owner complaints NHTSA holds on the Buick Reatta.

What year is my Reatta by its VIN?

Read position 10: a 1991 Reatta carries M, a 1990 Reatta carries L, a 1989 Reatta carries K.

Where was my Reatta built?

Position 11 names the plant. Across 41 dated Buick Reatta VINs it reads B 100%.

What does position 4 mean on a Buick Reatta VIN?

It is part of the maker's own build code, so read it against this model, not a generic chart. On 5 Buick Reatta VINs here, E is the most common character in position 4, on 100% of them.

VIN structure per ISO 3779 and NHTSA vPIC. Plant, body and engine characters observed across 5 decoded VINs on ForCar; recalls and complaints from NHTSA. Last updated Nov 2026. — ForCar Reviewed by , founder of ForCar.
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