Vehicle Identification Numbers (Chevrolet Trailblazer 1)

Vehicle Identification Numbers

Modernization is a constantly ongoing process of making changes to the design of cars. Spare parts catalogues take these changes into account, which is reflected in the identification numbers, so in order to correctly select spare parts suitable for a particular vehicle, it must be correctly identified.

Vehicle Identification Number (VIN)

The VIN number, which is included in the certificate and technical passport of the car, is also stamped on a gray plate attached to the dashboard on the left (from the driver's side), and visible through the windshield (see illustration). The number can be used to determine the manufacturer and date of production, as well as the country of manufacture, version and body type. The issue displays information about the installed security systems, as well as information about the manufacturers of the engine and other units.

Engine modification code and year of manufacture

The VIN number can be used to determine two important parameters: the engine modification code and the vehicle production date. The eighth letter from the left is the engine modification code, and the car's year of production code is the tenth digit from the left.

The following engine coding is used in the described vehicles:

• S — 4.2L MFI inline six-cylinder engine (LL8)

The models covered by this manual are coded as follows depending on the year of manufacture:

• 2 — 2002
• 3 — 2003

Certification plate

The plate is attached to the rear edge of the driver's door (see illustration). It displays the name of the manufacturer, month and year of production, as well as the vehicle's unladen weight and permissible axle load.

The vehicle's certification data is also provided there. On most models, this plate will show the size and inflation pressure of the tires that the vehicle is equipped with at the factory.

Service data plate

This plate is located on the back of the glove compartment lid and contains information about the additional equipment of the car, as well as codes for the paintwork and interior trim (see illustration). This information is required when ordering spare parts, as well as when performing bodywork and painting work.

Engine Identification Number (EIN)

The engine number for the straight six engine is stamped in the lower left corner of the front of the cylinder block, above the engine sump joint. The engine number is also indicated on a plate attached to the back of the valve cover, on the left side.

Transmission Identification Number (TIN)

The number is stamped or engraved on the base of the gearbox housing, behind its pan (see illustration).

Transfer case identification plate

The transfer case identification data is located on a tag attached to the rear of its housing (see illustration).