A Cadillac CT6 VIN opens with 1G6 (the United States). Position 11, the plant, reads U; a 2020 CT6 carries L in position 10. Decoding one also brings up 8 recall campaigns and 72 owner complaints from NHTSA.
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How to read a Cadillac CT6 VIN
Here is a real 2020 Cadillac CT6 VIN from our database, split into its parts:
VIN 1G6KW5RJ9LU109301 — 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 CT6 VINs say the car was built
The first three characters are the World Manufacturer Identifier. Across 36 Cadillac CT6 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 | — | 36 |
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 CT6
Position 10 carries the model year, skipping I, O, Q, U and Z. The alphabet comes round every 30 years, which the Cadillac CT6 has not yet outlived: its 5 years still map one-to-one. All 5 model years of the Cadillac CT6, 2016 to 2020, with the character each one carries:
| Model year | VIN character (position 10) | Same character as |
|---|---|---|
| 2020 | L | — |
| 2019 | K | — |
| 2018 | J | — |
| 2017 | H | — |
| 2016 | G | — |
Body and engine characters we see on Cadillac CT6 VINs
Positions 4–8 are the maker's own build code. Across 36 VINs the Cadillac CT6 uses 10 different characters in positions 4, 5 and 8:
| Position | Characters seen on real VINs | Variety |
|---|---|---|
| 4 — body | K (100%) | 1 distinct |
| 5 — series | D (22%) · W (19%) · E (17%) · P (8%) · F (6%) · H (6%) | 6 distinct |
| 8 — engine | S (53%) · J (25%) · 6 (22%) | 3 distinct |
What a decoded Cadillac CT6 VIN gets you
Behind a Cadillac CT6 VIN: 72 owner complaints and every recall campaign NHTSA has on record:
| Data | For this model | Source |
|---|---|---|
| Recall campaigns | 8 campaigns | NHTSA |
| Owner complaints | 72 filed | NHTSA |
| Fuel economy | 23 mpg combined (avg) | EPA |
| Model years covered | 5 years | ForCar catalog |
Where to find the VIN on a Cadillac CT6
A Cadillac CT6 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 CT6 VIN decoder free?
Yes, with no account. Besides the year, plant and build characters it shows 8 recall campaigns and 72 owner complaints NHTSA holds on the Cadillac CT6.
What year is my CT6 by its VIN?
Read position 10: a 2020 CT6 carries L, a 2019 CT6 carries K, a 2018 CT6 carries J.
Where was my CT6 built?
Position 11 names the plant. Across 72 dated Cadillac CT6 VINs it reads U 100%.
What does position 4 mean on a Cadillac CT6 VIN?
It is part of the maker's own build code, so read it against this model, not a generic chart. On 36 Cadillac CT6 VINs here, K is the most common character in position 4, on 100% of them.
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