Most Hyundai Sonata VINs open with 5NP (the United States, 1997–2022) or KMH (South Korea, 1989–2026). Position 11, the plant, shows 8 codes, most often H (82%); a 2026 Sonata carries T in position 10. Decoding one also brings up 68 recall campaigns and 14,636 owner complaints from NHTSA.
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How to read a Hyundai Sonata VIN
Here is a real 2026 Hyundai Sonata VIN from our database, split into its parts:
VIN KMHL24JA7TA572280 — 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. |
Hyundai Sonata VIN prefixes, and when each one was used
The Hyundai Sonata VINs on record carry 3 different prefixes. The main one is 5NP (the United States, 1997–2022), then KMH (South Korea, 1989–2026):
| VIN starts with | Years seen | Built in | Vehicle type | VINs on record |
|---|---|---|---|---|
| KMH | 1989–2026 | South Korea | Passenger Car | |
| KM8 | 1989–2013 | South Korea | Multipurpose Passenger Vehicle (MPV) | |
| 5NP | 1997–2022 | United States | Passenger Car |
Position 11 names the plant. On the Hyundai Sonata it is not one number either — assembly moved between 8 of them over the years:
| Plant code | Years active | VINs on record | Share |
|---|---|---|---|
| H | 1997–2022 | 11,993 | |
| A | 1997–2026 | 2,288 | |
| U | 1989–2013 | 118 | |
| B | 1990–2012 | 68 | |
| 8 | 2000–2020 | 56 | |
| 2 | 2000–2015 | 14 | |
| 0 | 1999–2015 | 13 | |
| 1 | 1995–2015 | 11 |
Counted from 14,479 dated Hyundai Sonata VINs attached to NHTSA complaints, each code checked against the NHTSA manufacturer registry.
Model-year codes for the Hyundai Sonata
Position 10 carries the model year, skipping I, O, Q, U and Z. The alphabet comes round every 30 years, which for the Hyundai Sonata has already happened — 1996 and 2026 share the character T. All 38 model years of the Hyundai Sonata, 1989 to 2026, with the character each one carries:
| Model year | VIN character (position 10) | Same character as |
|---|---|---|
| 2026 | T | 1996 |
| 2025 | S | 1995 |
| 2024 | R | 1994 |
| 2023 | P | 1993 |
| 2022 | N | 1992 |
| 2021 | M | 1991 |
| 2020 | L | 1990 |
| 2019 | K | 1989 |
| 2018 | J | — |
| 2017 | H | — |
| 2016 | G | — |
| 2015 | F | — |
| 2014 | E | — |
| 2013 | D | — |
| 2012 | C | — |
| 2011 | B | — |
| 2010 | A | — |
| 2009 | 9 | — |
| 2008 | 8 | — |
| 2007 | 7 | — |
| 2006 | 6 | — |
| 2005 | 5 | — |
| 2004 | 4 | — |
| 2003 | 3 | — |
| 2002 | 2 | — |
| 2001 | 1 | — |
| 2000 | Y | — |
| 1999 | X | — |
| 1998 | W | — |
| 1997 | V | — |
To tell the two apart on a car or light truck, look at position 7: a number for 1980–2009 models, a letter from 2010 on.
Body and engine characters we see on Hyundai Sonata VINs
Positions 4–8 are the maker's own build code. Across 388 VINs the Hyundai Sonata uses 15 different characters in positions 4, 5 and 8:
| Position | Characters seen on real VINs | Variety |
|---|---|---|
| 4 — body | E (83%) · L (16%) · W (1%) | 3 distinct |
| 5 — series | 3 (24%) · 2 (23%) · C (13%) · B (12%) · U (6%) · 6 (4%) | 6 distinct |
| 8 — engine | F (38%) · C (26%) · A (12%) · B (6%) · J (6%) · 2 (5%) | 6 distinct |
What a decoded Hyundai Sonata VIN gets you
Behind a Hyundai Sonata VIN: 14,636 owner complaints and every recall campaign NHTSA has on record:
| Data | For this model | Source |
|---|---|---|
| Recall campaigns | 68 campaigns | NHTSA |
| Owner complaints | 14,636 filed | NHTSA |
| Fuel economy | 28 mpg combined (avg) | EPA |
| Crash-test ratings | 16 rated model years | NHTSA |
| Model years covered | 38 years | ForCar catalog |
Where to find the VIN on a Hyundai Sonata
A Hyundai Sonata VIN normally opens with 5NP; 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 Hyundai Sonata VIN decoder free?
Yes, with no account. Besides the year, plant and build characters it shows 68 recall campaigns and 14,636 owner complaints NHTSA holds on the Hyundai Sonata.
Why does my Sonata VIN start differently from another Sonata?
Because the Hyundai Sonata was built under several maker codes, by plant and period. Across the Hyundai Sonata VINs on record we see 3 of them: KMH (1989–2026), KM8 (1989–2013), 5NP (1997–2022). Each is genuine for its years.
What year is my Sonata by its VIN?
Read position 10: a 2026 Sonata carries T, a 2025 Sonata carries S, a 2024 Sonata carries R. A 1996 and a 2026 share T; position 7 tells them apart, a number for 1980–2009 and a letter from 2010 on.
Where was my Sonata built?
Position 11 names the plant. Across 14,561 dated Hyundai Sonata VINs it reads H 82%, A 16%, U 1%, B 0% and 4 rarer codes.
What does position 4 mean on a Hyundai Sonata VIN?
It is part of the maker's own build code, so read it against this model, not a generic chart. On 388 Hyundai Sonata VINs here, E is the most common character in position 4, on 83% of them.
What if the VIN on the dashboard doesn't match the door jamb?
On a Hyundai Sonata check the prefix first: most genuine ones open with 5NP or KMH. 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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