Free Hummer VIN Decoder
Hummer VIN Decoder & Lookup Tool
A Hummer VIN decoder translates the 17-character VIN into the vehicle's factory identity — year, model, trim, engine, transmission, drivetrain, body style, and assembly plant — using the official NHTSA vPIC database. CarWhere's Hummer decoder is free with no account, and pairs every decode with verified buyer transaction prices for the same Hummer, so you see both what the vehicle is and what people actually paid for it.
Reviewed by the CarWhere Vehicle Data Team · Last updated 2026-06-11
Try a sample: 5GTDN136468201234Sample 2006 Hummer H3 format — Shreveport, Louisiana build.
Enter a VIN to Decode
Want more than a decode?
The $9.99 Full VIN Report adds the original window sticker (where available), itemized factory options, open NHTSA recalls, a market price check from verified buyers, and a negotiation target. See a sample · Get the report
About Hummer
Hummer sold the H1, H2, and H3 from 1992 until GM retired the brand in 2010 (the name returned as the GMC Hummer EV). Classic Hummer VINs decode through NHTSA, including the AM General-built H1 with its distinctive 137 WMI.
What a Hummer VIN Tells You
Every Hummer VIN encodes 13 distinct vehicle attributes. Our decoder surfaces the ones that matter most for identifying, valuing, and researching a specific Hummer:
Year
Model year — encoded in character 10 of the VIN
Model & Trim
Specific Hummer model line and trim level
Engine
Displacement, cylinder count, and fuel type
Transmission
Automatic, manual, CVT, or DCT — and gear count
Drive Type
AWD, FWD, RWD, or 4WD configuration
Body Style
Sedan, SUV, truck, hatchback, coupe, convertible
Plant
Where this specific Hummer was assembled
Country
Country of origin — derived from the WMI prefix
How a Hummer VIN Is Structured
All modern Hummer VINs follow ISO 3779 — the international 17-character VIN standard adopted in 1981. The 17 characters break into four fixed sections:
World Manufacturer Identifier (WMI)
For Hummer, the WMI is typically 5GR, 5GT, 137. 5GR/5GT identify the H2 and H3; the original AM General H1 uses the 137 WMI.
Vehicle Descriptor Section (VDS)
Encodes the Hummer model line, body style, restraint system, and engine. Position 8 specifically identifies the engine — the most ambiguous character because the same digit can mean different engines on different Hummer models.
Check Digit
A mathematical checksum derived from the other 16 characters. If a Hummer VIN doesn't pass the check-digit test, it's either a typo or a forgery.
Model Year
A single character encoding the model year. Examples on a Hummer: L = 2020, M = 2021, N = 2022, P = 2023, R = 2024, S = 2025, T = 2026.
Plant Code
Identifies the specific Hummer assembly plant. Hummer operates plants in Mishawaka, Indiana, Shreveport, Louisiana.
Sequential Production Number
The unique six-character serial number for that specific Hummer unit. Two Hummer vehicles with the same year, model, trim, and plant will differ only in this final segment.
Popular Hummer Models
The most common Hummer models by U.S. sales volume. Click any model to see verified buyer transactions and current pricing on CarWhere.
Where Hummer Vehicles Are Built
The 11th character of a Hummer VIN identifies the assembly plant. Hummer operates the following facilities that supply U.S.-market vehicles:
- •Mishawaka, Indiana
- •Shreveport, Louisiana
How to Decode a Hummer VIN
Find the VIN on your Hummer
Locate the 17-character VIN on the lower driver's-side corner of the windshield, the driver's door jamb, your registration, or your insurance card.
Enter the VIN
Type or paste the 17-character VIN into the decoder above. We strip spaces and dashes automatically and convert lowercase letters to uppercase. The tool rejects VINs containing I, O, or Q.
Decode instantly
Click "Decode VIN." Our server queries the NHTSA vPIC database and returns the full vehicle specification in under a second.
See what buyers paid for the same Hummer
If we have verified buyer transactions for the decoded year/make/model, we surface the average selling price, average discount off MSRP, and total verified deal count — and link you to the full Hummer model page.
Hummer VIN year chart (10th character)
The 10th character of every Hummer VIN encodes the model year under the federal VIN standard. Letters I, O, Q, U, and Z are never used; the cycle repeats every 30 years (so "A" means 2010 on modern vehicles, 1980 on classics).
Sources and limitations
CarWhere's Hummer VIN decoder uses NHTSA vPIC, the U.S. government VIN-decoding platform built from manufacturer-submitted vehicle data (model years 1981 and newer). Recall status for a specific VIN can be confirmed at the official NHTSA recall lookup. Decode results may be limited for non-US-market vehicles, gray-market imports, or VIN patterns with incomplete manufacturer submissions. A VIN decode does not show accident, title, lien, mileage, or theft history.
Hummer VIN Decoder FAQ
What does a Hummer VIN decoder tell you?
A Hummer VIN decoder reveals the model year, model name, trim level, engine type and displacement, transmission, drive type, body style, and assembly plant of any Hummer vehicle. It uses NHTSA vPIC, the public VIN-decoding platform built from manufacturer-submitted data (model year 1981-forward); decode fields vary by model year and manufacturer submission. It does not show accident or ownership history.
What does a Hummer VIN start with?
Hummer VINs typically start with 5GR, 5GT, 137. 5GR/5GT identify the H2 and H3; the original AM General H1 uses the 137 WMI.
Where is the VIN on a Hummer?
The easiest place to find the VIN on a Hummer is the lower corner of the windshield on the driver's side dashboard, visible from outside the vehicle. It's also printed on the driver's door jamb sticker, the vehicle title, the registration card, and the insurance card. On older models the VIN may be stamped on the engine block or firewall.
How many characters is a Hummer VIN?
Every Hummer VIN is exactly 17 characters — a mix of letters and numbers. Like all modern VINs, Hummer VINs never contain the letters I, O, or Q to avoid confusion with the digits 1, 0, and 9. A Hummer VIN with fewer or more than 17 characters is either a partial reference or an error.
Is the Hummer VIN decoder really free?
Yes. CarWhere's Hummer VIN decoder is completely free with no signup, account, or credit card required. We use the NHTSA vPIC API — the official U.S. government VIN database that every U.S.-market Hummer is filed against. We additionally cross-reference the decoded year, make, and model against verified buyer transactions in our deal database.
Where are Hummer vehicles built?
Hummer operates assembly plants in Mishawaka, Indiana, Shreveport, Louisiana. The 11th character of a Hummer VIN identifies the specific plant of manufacture, while the first three characters (the World Manufacturer Identifier) identify the country.
Can I check Hummer recalls by VIN?
Yes — once you decode a Hummer VIN here, you can cross-reference open recalls at the official NHTSA recall lookup at nhtsa.gov/recalls. Hummer also operates an owner portal where logged-in owners can view recall status and schedule free repairs at any authorized Hummer dealer.
Does a Hummer VIN reveal accident history?
No. A VIN decode reveals factory specifications only — make, model, trim, engine, plant. To check accident history, salvage titles, or odometer rollback on a Hummer, you need a vehicle history report from Carfax or AutoCheck, both of which use the VIN as the lookup key but pull from insurance and DMV records.
VIN Decoders for Other Makes
Decoded a Hummer VIN? Get the full picture for $9.99.
The $9.99 Full VIN Report covers any Hummer VIN: full federal decode, open recalls, owner complaints, and service-bulletin history. One-time, no subscription.