Buick VIN Decoder
Enter any 17-character Buick VIN. Free US-market Buick VIN decoder backed by the official NHTSA VPIC database — engine code, assembly plant, model year, body class, and every open recall, in about 30 seconds.
How to read a Buick VIN
A Buick VIN, like any modern road-vehicle VIN, is 17 characters split into three blocks: the World Manufacturer Identifier (WMI) in positions 1–3, the Vehicle Descriptor Section (VDS) in positions 4–9, and the Vehicle Identifier Section (VIS) in positions 10–17. Here's a real Buick VIN broken down position by position.
152G3A4E5R6B7K8W9310J11J120130140150160171
| Position | Chars | Meaning |
|---|---|---|
| 1 | 5 | Country of origin 5 = United States. Most Buicks are US-built: 5GA (SUVs — Enclave) at Lansing-Delta Township, Michigan and 1G4 (sedans — LaCrosse / Regal / Verano) at GM US plants. The Envision and some crossovers are imported from China (LRB, L = China) or Korea. CheckMyVIN reports the actual Plant Country from VPIC rather than inferring it from this digit. |
| 2-3 | GA | Manufacturer (WMI) GA = Buick SUV (General Motors) within the 5GA World Manufacturer Identifier. Other major Buick WMIs: 1G4 (US-built Buick cars) and LRB (China-built Buick — Envision). All decode as Make = BUICK, a GM division alongside Chevrolet (1G1 / 1GC), GMC (1GT / 1GK), and Cadillac (1G6). The model line is encoded in positions 4-8, not at the WMI level. |
| 4-8 | ERBKW | Vehicle Descriptor Section (VDS) Encodes the model line, body style, restraint system, and engine/drivetrain. GM does not publish a public VDS-to-trim table, so CheckMyVIN does not guess that "ERBKW" means a specific trim — instead it reports the Model, Trim, and Engine that NHTSA VPIC returns directly (for this VIN: Enclave, Essence, 3.6L V6). |
| 9 | 3 | Check digit A mod-11 checksum computed from the other 16 positions. NHTSA uses it to reject typos before returning a decode — if the check digit is wrong, VPIC flags an error and CheckMyVIN treats the entry as an unreadable VIN. |
| 10 | J | Model year J = 2018. The full year-code table is below. The 30-year ISO cycle skips I, O, Q, U, Z and 0 to avoid confusion with similar-looking characters. |
| 11 | J | Assembly plant For this VIN the plant character maps to Lansing-Delta Township, Michigan — the GM plant that builds the Enclave (and the related Chevrolet Traverse). CheckMyVIN reads Plant City and Plant Country straight from the VPIC record rather than inferring from position 11; other Buick plants include Orion and Detroit-Hamtramck (Michigan) and GM plants in China and Korea. |
| 12-17 | 000001 | Production sequence A 6-digit serial number that increments through the model year at that plant. Not meaningful on its own, but together with the year and plant it confirms the VIN is internally consistent. |
VIN year codes (position 10)
The 10th character of every modern VIN encodes the model year. The cycle skips the letters I, O, Q, U and Z, and the digit 0, to avoid being confused with similar digits. This table covers every model year currently on US roads.
| Code | Year | Code | Year | Code | Year |
|---|---|---|---|---|---|
| A | 2010 | H | 2017 | R | 2024 |
| B | 2011 | J | 2018 | S | 2025 |
| C | 2012 | K | 2019 | T | 2026 |
| D | 2013 | L | 2020 | V | 2027 |
| E | 2014 | M | 2021 | W | 2028 |
| F | 2015 | N | 2022 | X | 2029 |
| G | 2016 | P | 2023 | Y | 2030 |
Buick WMI codes (positions 1–3)
The first three characters of the VIN identify the manufacturer and country of assembly. Buick uses several WMI codes depending on plant and model line.
| WMI | Meaning |
|---|---|
| 5GA | Buick SUV — USA (Lansing, MI; Enclave) |
| 1G4 | Buick car — USA (sedans such as LaCrosse, Regal, Verano) |
| LRB | Buick — China (Envision and some crossovers imported to the US) |
Buick build sheet & options
A full Buick build sheet — original Monroney options, paint code, interior color, audio package, driver-assist bundle, and dealer-installed accessories — is not part of the federal NHTSA VPIC dataset. GM does, however, print an RPO (Regular Production Option) / SPID label, usually in the glovebox or trunk, that lists the factory option codes for that VIN. CheckMyVIN can confirm the model, trim (Preferred / Essence / Premium / Avenir / Sport Touring), engine family (GM Ecotec turbo fours — 1.2L / 1.3L / 1.4L / 1.5L / 2.0L — and the 3.6L V6), drive type, assembly plant, model year, body class, and recall history pulled live from NHTSA. For the original build, your authoritative sources are that RPO label and a GM/Buick dealer, who can pull the build from the VIN. CheckMyVIN never claims options data it cannot verify against the NHTSA record.
Buick VIN decoder FAQ
Is the Buick VIN decoder free?
Yes — every Buick VIN lookup on CheckMyVIN is free, with no signup, no email gate, and no usage cap for individual users. Data comes from the public NHTSA VPIC API. The optional "full vehicle history report" link at the bottom of each report is an affiliate to a paid third-party history service; you can ignore it.
How do I read a Buick VIN (Enclave, Encore, Envision, LaCrosse)?
A Buick VIN is 17 characters: position 1 is the country (1 / 5 = USA, L = China), positions 2-3 are the WMI (GA = Buick SUV, G4 = Buick car, RB = Buick China), positions 4-8 are the model/engine descriptor, position 9 is the check digit, position 10 is the model year (J = 2018 in the worked example above), and position 11 is the plant. Enter any 17-character Buick VIN above and CheckMyVIN reads every field via the official NHTSA database — that is the same thing as a Buick VIN number decoder, VIN lookup, VIN code, or VIN check.
Where is the VIN located on a Buick?
Three places on a modern Buick: the dash plate at the base of the windshield (read it from outside, driver side), the driver door-jamb certification sticker, and the title / registration. GM also prints an RPO/SPID option label (often in the glovebox) — useful for options, but the 17-character VIN is the legal identifier.
What does the 10th character of a Buick VIN mean?
The 10th character is the model-year code, following the ISO 3779 cycle every manufacturer uses: A = 2010, B = 2011, … J = 2018 (the worked example above), … Y = 2030. The cycle skips the letters I, O, Q, U, Z and the digit 0 to avoid confusion with similar-looking characters. It tells you the model year, not the build date.
How do I find my Buick paint code by VIN?
"Buick paint codes by VIN" is a common search, but the paint code is NOT encoded in the VIN — no decoder can return it from the VIN alone. GM stores the paint code on the RPO/SPID option label (usually in the glovebox or trunk; look for a WA-prefixed code such as "WA316N"), and a GM/Buick dealer can match it to the VIN. CheckMyVIN shows what NHTSA VPIC actually stores and does not fabricate a paint-from-VIN lookup.
Can I check Buick recalls with the VIN?
Yes. Every CheckMyVIN report runs the VIN against the live NHTSA recall API and lists any open campaign for that model and year (GM files Buick campaigns under General Motors). You can also browse worked Buick examples on the /buick/recall page — the Enclave side-airbag-wiring and fuel-pump campaigns are ones to confirm — then run your own VIN.
How do I decode the GM engine (RPO) code on a Buick?
GM identifies engines by RPO code (e.g. LFV for the 1.5L turbo, LGX for the 3.6L V6) on the RPO/SPID label, not in the VIN. CheckMyVIN reports the engine displacement and model that NHTSA VPIC returns; for the exact RPO engine code, read the option label or ask a GM dealer. We never guess an RPO code the VIN does not encode.