Trim level by VIN: what the VIN encodes and where the trim shows up

The US rule for positions 4 to 8

Table I of 49 CFR 565.15 lists what the second section of a VIN subject to US rules must identify. For a passenger car that is the make, line, series, body type, engine type and all restraint devices. For a truck, the required attributes are make, line, series, chassis, cab type, engine type, brake system and gross vehicle weight rating. For trucks with a gross vehicle weight rating of 4536 kg (10,000 lb) or less, all restraint devices and their locations must also be identifiable.

Series is the closest the rule comes to trim, and manufacturers use it for grades such as LX or EX. The manufacturer chooses which characters carry which attribute and files the key with NHTSA, so the same position means different things from brand to brand.

A worked example: Honda position 8

In the North American Honda examples covered by the cited Wikibooks tables, position 8 codes the grade and restraint system together. According to the Wikibooks Honda tables, 2 on a 2022 to 2026 Civic 4-door is the LX, and 3 on a 2020 to 2021 Civic 4-door with the 1.5-liter turbo is the EX.

The same digit changes meaning with the model and the year. A 3 on a Civic 5-door of 2020 to 2021 is the LX. Read position 8 against a table for the right model and year, or you will decode a trim the car does not have.

The check also works in reverse. If the customer calls the car an EX but the relevant Wikibooks table decodes position 8 as LX, confirm the grade against manufacturer data for that VIN before ordering. Badges can be swapped; the VIN was assigned at the factory, but the decoding table still needs verification.

European VINs rarely give the trim level

The international VIN layout uses positions 4 to 9 for the vehicle descriptor, with manufacturer-specific content; market rules can impose additional requirements. Many European VINs carry the model and body there and nothing about trim or equipment.

On these cars the equipment lives in option codes stored against the VIN in the factory build record. Volkswagen Group cars use PR codes, Mercedes-Benz uses SA codes on the data card, and GM uses RPO codes. Our article on VW PR codes shows how one of these systems reads. When a European car comes in, ask for the VIN and a photo of the data plate together.

Trim level by VIN in the parts catalog

Where the vehicle record is available, a catalog VIN lookup can return the model, engine, gearbox, market, production date and option codes behind the trim. For parts, the option codes matter more than the trim name. Two cars badged with the same grade can differ in brakes, wheels or headlamps if one carries an option package.

Catalog filtering can narrow the diagrams to the build, but you must still check application notes and equipment. VINsearch opens the manufacturer catalogs for the brands listed on the catalogs page; VIN recognition and the details returned vary by system and available records.

The data plate and the window sticker

Many manufacturers fix a label or plate to the car with the paint code, the trim or interior code and sometimes the option codes. See reading the vehicle data plate for where to find it on common brands.

On new cars sold in the United States, the Monroney label lists the make, model, trim, engine, transmission and VIN, with the standard equipment and each factory option. The window sticker and build sheet by VIN article covers where to get a copy for a used car.