Pontiac Trans Sport VIN Decoder

Decode any Pontiac Trans Sport VIN free: model year, plant, body and engine codes, read from 1 real Trans Sport VINs.

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

A Pontiac Trans Sport VIN opens with 1GM (the United States). Position 11, the plant, shows 3 codes, most often D (75%); a 1991 Trans Sport carries M in position 10. Decoding one also brings up 11 recall campaigns and 467 owner complaints from NHTSA.

How to read a Pontiac Trans Sport VIN

Here is a real 1991 Pontiac Trans Sport VIN from our database, split into its parts:

1–3 · WMI1GM
4–8 · VDSCU06D
9 · Check7
10 · YearM
11 · PlantT
12–17 · Serial206833

VIN 1GMCU06D7MT206833 — decoded free on its own report page.

FIG.01·Pontiac Trans Sport 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 Pontiac Trans Sport VINs say the car was built

The first three characters are the World Manufacturer Identifier. Across 1 Pontiac Trans Sport VINs we have on file, these are the codes that actually show up — and the plants behind them:

FIG.02·Pontiac Trans Sport assembly by VIN prefix
WMIBuilt inVehicle typeVINs on fileShare
1GMUnited States—1100%
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 Pontiac Trans Sport

Position 10 carries the model year, skipping I, O, Q, U and Z. The alphabet comes round every 30 years. The Pontiac Trans Sport was built in 1991 only, which reads M:

FIG.03·Pontiac Trans Sport VIN model-year codes
Model yearVIN character (position 10)Same character as
1991M—
ROWS 1·SOURCE ISO 3779

Body and engine characters we see on Pontiac Trans Sport VINs

Positions 4–8 are the maker's own build code. Across 1 VINs the Pontiac Trans Sport uses 3 different characters in positions 4, 5 and 8:

FIG.04·Pontiac Trans Sport VIN body and engine characters
PositionCharacters seen on real VINsVariety
4 — bodyC (100%)1 distinct
5 — seriesU (100%)1 distinct
8 — engineD (100%)1 distinct
ROWS 3·SOURCE ForCar decoded VINs

What a decoded Pontiac Trans Sport VIN gets you

Behind a Pontiac Trans Sport VIN: 467 owner complaints and every recall campaign NHTSA has on record:

FIG.05·Pontiac Trans Sport data available by VIN
DataFor this modelSource
Recall campaigns11 campaignsNHTSA
Owner complaints467 filedNHTSA
Fuel economy18 mpg combined (avg)EPA
ROWS 3·SOURCE NHTSA · EPA · ForCar

Where to find the VIN on a Pontiac Trans Sport

A Pontiac Trans Sport VIN normally opens with 1GM; the full number sits in four places, and all four must match.

FIG.06·Pontiac Trans Sport 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 Pontiac Trans Sport VIN decoder free?

Yes, with no account. Besides the year, plant and build characters it shows 11 recall campaigns and 467 owner complaints NHTSA holds on the Pontiac Trans Sport.

What year is my Trans Sport by its VIN?

Read position 10: a 1991 Trans Sport carries M.

Where was my Trans Sport built?

Position 11 names the plant. Across 467 dated Pontiac Trans Sport VINs it reads D 75%, T 22%, 2 2%.

What does position 4 mean on a Pontiac Trans Sport VIN?

It is part of the maker's own build code, so read it against this model, not a generic chart. On 1 Pontiac Trans Sport VINs here, C 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 1 decoded VINs on ForCar; recalls and complaints from NHTSA. Last updated Nov 2026. — ForCar Reviewed by , founder of ForCar.
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