Vehicle Identification Number - VIN 
 
The Buick VIN number for 2000 had 17 Characters. 
 
1st = country code Number "1" is for USA. 
2nd = Company code, "G" is for GM 
3rd = What division of GM, "4" is for Buick. 
4th & 5th = Tell what TYPE of car it is (Skylark, Century, Riviera, ect..) 
"CU" = Park Avenue Ultra 
"CW" = Park Avenue 
"HP" = LeSabre Custom 
"HR" = LeSabre Limited 
"WB" = Regal LS 
"WF" = Regal GS 
"WL" = Century 2000 
"WS" = Century Custom 
"WY" = Century Limited 
6th = Tells Body Style 
"1" = Coupe 
"2" = Two-door 
"3" = Convertible 
"5" = 4dr sedan 
"6" = 4dr 
"8" = 4dr Wagon 
7th = Restraint codes  
2-active belts with dual air bags 
4-active belts with dual airbag and side airbag 
5,6,7-active belts wi driver and passenger inflable restraints 
8th = Engine Code 
J - 3.1L V-6 
K - 3.8L V-6 
1 - 3.8L V6 
9th = check digit 
10th = tell what year it is "Y" = 2000 
11th = What Plant the car was Produced 
12th - 17th = Production Sequence numbers
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