2001
Example: 1G1YY12S015123456
1 - Country of Origin (1=U.S.)
2 - Manufacturer (G=General Motors)
3 - Make (1=Chevrolet)
4/5 - Carline/Series (YY=Corvette)
6 - Body Style (1=Two-door coupe, 2=Two-door, 3=Two-door convertible)
7 - Restraint Code (2=Active [manual] belts with Driver and Passenger Inflatable Restraint System [frontal])
8 - Engine Type (G=346 ci/350 hp, S=346 ci/385 hp)
9 - Check Digit (Varies by VIN)
10 - Model Year (1=2001)
11 - Plant (5=Bowling Green, Kentucky)
12-17 - Production Sequence Number (100001 through 135601)

2002
Example: 1G1YY22G725123456
1-3 - World Make Identifier (1G1=Chevrolet)
4/5 - Carline/Series (YY=Corvette)
6 - Body Style (1=Two-door coupe, 2=Two-door, 3=Two-door convertible)
7 - Restraint Code (2=Active [manual] belts with Driver and Passenger Inflatable Restraint System [frontal])
8 - Engine Type (G=346 ci/350 hp, S=346 ci/405 hp)
9 - Check Digit (Varies by VIN)
10 - Model Year (2=2002)
11 - Plant (5=Bowling Green, Kentucky)
12-17 - Production Sequence Number (100001 through 135763)

2003
Example: 1G1YY22G535123456
1-3 - World Make Identifier (1G1=Chevrolet)
4/5 - Carline/Series (YY=Corvette)
6 - Body Style (1=Two-door coupe, 2=Two-door, 3=Two-door convertible)
7 - Restraint Code (2=Active [manual] belts with Driver and Passenger Inflatable Restraint System [frontal])
8 - Engine Type (G=346 ci/350 hp, S=346 ci/405 hp)
9 - Check Digit (Varies by VIN)
10 - Model Year (3=2003)
11 - Plant (5=Bowling Green, Kentucky)
12-17 - Production Sequence Number (100001 through 135469)

2004
Example: 1G1YY22G345123456
1-3 - World Make Identifier (1G1=Chevrolet)
4/5 - Carline/Series (YY=Corvette)
6 - Body Style (1=Two-door coupe, 2=Two-door, 3=Two-door convertible)
7 - Restraint Code (2=Active [manual] belts with Driver and Passenger Inflatable Restraint System [frontal])
8 - Engine Type (G=346 ci/350 hp, S=346 ci/405 hp)
9 - Check Digit (Varies by VIN)
10 - Model Year (4=2004)
11 - Plant (5=Bowling Green, Kentucky)
12-17 - Production Sequence Number (100001 through 134064)