2003 Chevrolet Corvette VIN Numbers

VIN Range & Meaning

VIN Range	1G1YY12S015100001 – 1G1YY12S115135601
1 (First Digit)	1 – United States
G (Second Digit)	Manufacturer.  G – General Motors
1 (Third Digit)	Manufacturer Division. 1 – Chevrolet
YY (Fourth & Fifth Digits)	Carline/Series. YY – Corvette/Coupe
1/2/3 (Sixth Digit)	Bodystyle of Car. 1 – Hardtop, 2 – Two Door Hatchback Coupe, 3 – Two Door Convertible
2 (Seventh Digit)	Type of Restraint System.  2 – Passive Restraint System.
G (Eighth Digit)	Type of Engine. G – LS1: 5.7 Liter, 346CI Engine, S – LS6: 5.7 Liter, 346 CI Engine
7 (Ninth Digit)	Check Digit (varies)
3 (Tenth Digit)	The Model Year. 3 – 2003
5 (Eleventh Digit)	Location of the Assembly Plant. 5 – Bowling Green, Kentucky
1XXXXX (Twelfth thru Seventeenth Digits)	Production Sequence Numbers.

The last six digits begin at 100001 and run thru 135469. The pilot and prototype cars were given a VIN number in this VIN series. Each Vehicle Identification Number (VIN) is unique to an individual car.

For all 2003 Corvettes in the U.S. and Canada, the Vehicle Identification Number (VIN) was stamped on a plate on the inner vertical surface of the left windshield pillar visible through the windshield. (See Figure below)

For all 2003 Corvettes exported from the U.S. the Vehicle Identification Number (VIN) was stamped onto the vehicle frame rail. (See Figure below)

2003 Corvette Engine VIN Derivative

All engines are stamped or laser etched with a partial vehicle identification number (VIN), which was derived from the complete VIN.

VIN Derivative:

• 135100001 – 135135469

The engine VIN derivative contains the following nine positions:

• 1 (First Digit) – GM Division Identifier. 1 – Chevrolet
• 3 (Second Digit) -Model Year. 3 – 2003
• 5 (Third Digit) – Assembly Plant. 5 – Bowling Green, KY
• 1XXXXX (Fourth thru Ninth Digits) – Plant Sequence Numbers (matching VIN)

LS1 and LS6 Engine VIN Derivative Label Locations:

1. Engine VIN Derivative, Primary Location
2. Engine VIN Derivative, Secondary Location

The engine VIN Derivative number will be located in either the primary or secondary location, as shown. (See Figure 3 above)

2003 Corvette Engine Identification (ID) Numbers

Stick-on labels attached to the engine, laser etching, or stampings in the engine block indicate the engine unit number/build date code.

LS1 and LS6 Engine ID Number Label Locations

1. Engine ID Number, Primary Location
2. Engine ID Number, Secondary Location

The engine ID number will be located on the rear of the LH cylinder head (2) or the front part of the LH oil pan rail (1).
(See Figure 4 above)

2003 Corvette 6-Speed Manual Transmission (RPO MM6, RPO MM12) VIN Derivative

Stick-on labels, laser etching, or stampings on the transmission indicate the engine unit number/build date code.

Borg Warner T-56 Manual Transmission VIN Derivative Label Locations

1. 6-Speed Manual Transmission VIN Derivative, Primary Location
2. 6-Speed Manual Transmission VIN Derivative, Secondary Location

The 6-speed manual transmission, the Borg Warner Modified T-56 (RPO MM6), is stamped with a VIN Derivative, which will be located in either the primary or secondary  location, as shown. (See Figure 5 above).

2003 Corvette Automatic Transmission Identification (ID) Number

The 4-speed overdrive automatic transmission, the Hydra-Matic 4L60-E (RPO M30), has an identification number with stick-on labels, laser etching, or stampings. (see Figure 6 below.)

The Automatic transmission ID Number contains the following nine positions

• 3 (First Digit) – Model Year. 3 – 2003
• Y (Second and Third Digit) – Model. Y – Corvette
• D (Fourth Digit) – Transmission Type. D – HYDRA-MATIC 4L60-E
• 3 (Fifth Digit) – Calendar Year. 3 – 2003
• XXX (Sixth thru eighth Digit) – Julian Date (or Day of the Year)
• X (Ninth Digit) – Shift Build

Hydra-Matic 4L60-E Transmission ID Label Location

The transmission identification number (Figure 6) indicates the transmission model type and when the unit was built.

2003 Corvette Automatic Transmission VIN Derivative

Stick-on labels, laser etching, or stampings on the Hydra-Matic 4L60-E automatic transmission indicate the VIN Derivative. (see Figure 7 below).

Hydra-Matic 4L60-E Transmission VIN Derivative Label Locations

1. Automatic Transmission VIN Derivative, Primary Location
2. Automatic Transmission VIN Derivative, Secondary Location
3. Automatic Transmission VIN Derivative, Optional Location
4. Automatic Transmission VIN Derivative, Optional Location

The automatic transmission, the Hydra-Matic 4L60-E (RPO MM30), is stamped with a VIN Derivative, which will be located in either the primary, secondary, or optional locations. (See Figure 7 above.)

Axle Identification

1. GM Part Number
2. Getrag Part Number
3. Serial Number

Label Certification
(Located on the edge of the driver’s door)

1. Name of Manufacturer
2. Gross Vehicle Weight-Rating
3. Gross Axle Weight-Rating, Front, Rear
4. Canadian Safety Mark (w/RPO Z49)
5. Certification Statement
6. Vehicle Class Type (Pass Car, etc.)
7. Vehicle Identification Number
8. Date of Manufacture (Mo/Yr)

Service Parts Identification Label (SPID)
(Located inside the glovebox)

1. Vehicle Identification Number
2. Engineering Model number (Vehicle Division, Vehicle Line and Body Style)
3. Interior Trim and Decor Level
4. Exterior (Paint Color) WA Number
5. Paint Technology
6. Special Order Paint Colors and Numbers
7. Vehicle Option Content

The service parts identification label is used to identify the original equipment options built into the specific vehicle being serviced.