VIN Position 11: Assembly Plant Code Explained
A federal-rule and NHTSA-source explanation of what this VIN section means, how to verify it, and where interpretation stops.
Use the complete 17-character VIN and manufacturer context before treating any character as a conclusion.
VIN position 11 represents the plant of manufacture—the plant where the manufacturer affixes the VIN. The character is manufacturer-specific, so the same letter can identify different plants for different manufacturers or model years. NHTSA vPIC can return plant city, state or province, country, company name, or related manufacturer-submitted fields when those records are available. Use the full VIN and manufacturer context; a standalone plant-code chart cannot reliably cover every vehicle.
What position 11 can establish
- Position 11 is the second character of the VIN’s fourth section.
- Plant codes are assigned within a manufacturer’s decoding scheme, not globally across every brand.
- The plant field can help challenge an implausible listing or document, but blank or broad data is not automatically suspicious.
- Final assembly location does not by itself reveal parts origin, quality, market specification, or present condition.
How to interpret the result
If a listing claims a specific assembly location, decode the complete VIN and compare the returned plant information with the certification label and manufacturer records. Do not search the eleventh character in an unrelated brand’s chart.
Verification checklist
- Decode the full VIN with NHTSA.
- Record the returned plant fields.
- Check the model year and manufacturer context.
- Compare the result with the certification label and seller claim.
- Ask the manufacturer when a persistent mismatch remains.
Limits of position 11
- The plant code does not establish where every component was made.
- It does not report later modifications, repairs, imports, shipping, ownership, or title history.
- Plant names and company ownership can change over time, so model-year context matters.
Federal VIN structure sources
Open the underlying public source and verify that its scope matches the question you are asking.
Plant code questions
What does VIN position 11 mean?
It represents the plant of manufacture under 49 CFR Part 565.
Is the eleventh-character plant code universal?
No. The same character can mean different plants in different manufacturer and model-year decoding schemes.
Can a VIN tell me the factory city?
Often NHTSA vPIC returns plant city, jurisdiction, country, or company fields, but availability depends on manufacturer-submitted data.
Does assembly plant determine vehicle quality?
No. A plant code is an identity attribute, not a quality, condition, reliability, or history score.