| 4th & 5th digits - platform & series |
|---|
| AF | Saturn ION |
| AG | Saturn ION |
| AJ | Saturn ION |
| AK | Saturn ION |
| AL | Saturn ION |
| AM | Saturn ION |
| AN | Saturn ION |
| AV | Saturn ION |
| AW | Saturn ION |
| AZ | Saturn ION |
| CB | Cadillac Fleetwood |
| CD | Cadillac DeVille |
| CG | Cadillac Sixty Special |
| CT | Cadillac DeVille |
| CU | Buick Park Avenue Ultra |
| CW | Buick Park Avenue |
| DG | Cadillac CTS |
| DM | Cadillac CTS |
| DR | Cadillac CTS |
| DU | Cadillac CTS |
| DW | Cadillac Brougham |
| EL | Cadillac Eldorado |
| FP | Camaro
Sport Coupe / Z28 |
| FS | Camaro Berlinetta
Firebird |
| FT | Esprit |
| FV | Formula |
| FW | Trans Am |
| FX | Trans Am Special Edition |
| GR | Oldsmobile Aurora |
| GS | Oldsmobile Aurora |
| HP | Buick Le Sabre Custom |
| HR | Buick Le Sabre Limited |
| HX | Pontiac Bonneville SE |
| HY | Pontiac Bonneville SLE |
| HZ | Pontiac Bonneville SSEi |
| JB | Pontiac Sunfire |
| JC | Chevrolet Cavalier |
| JF | Chevrolet Cavalier |
| JH | Chevrolet Cavalier Z24 |
| JT | Saturn L200 |
| JU | Saturn L200 |
| JW | Saturn L300 |
| KD | Cadillac DeVille |
| KE | Cadillac DeVille |
| KF | Cadillac DeVille |
| KS | Cadillac Seville
Cadillac SLS |
| KY | Cadillac Seville
Cadillac STS |
| ND | Chevrolet Malibu |
| NE | Chevrolet Malibu LS
Pontiac Grand Am SE |
| NF | Pontiac Grand Am SE1
Oldsmobile Alero GLS |
| NG | Pontiac Grand Am SE2 |
| NK | Oldsmobile Alero Level I |
| NL | Oldsmobile Alero Level II |
| NV | Pontiac Grand Am GT1 |
| NW | Pontiac Grand Am GT |
| SL | Pontiac Vibe |
| SM | Pontiac Vibe AWD |
| SN | Pontiac Vibe GT |
| VR | Cadillac Allanté
Cadillac Catera |
| VS | Cadillac Allanté coupe |
| WB | Buick Regal LS |
| WF | Chevrolet Impala
Buick Regal GS |
| WH | Chevrolet Impala LS |
| WJ | Pontiac Grand Prix SE |
| WK | Pontiac Grand Prix SE1 |
| WP | Pontiac Grand Prix GT |
| WR | Pontiac Grand Prix GTP |
| WS | Buick Century Custom |
| WW | Chevrolet Monte Carlo LS |
| WX | Chevrolet Monte Carlo SS |
| WY | Buick Century Limited |
| YV | Cadillac XLR |
| YY | Chevrolet Corvette |
|
| 6th digit - body type |
|---|
| 1 | two-door coupe |
| 2 | two-door |
| 3 | two-door convertible |
| 5 | four-door sedan |
| 6 | four-door sedan |
| 8 | four-door wagon |
| 9 | four-door wagon |
| —– | |
|
| 11th digit - assembly plant |
|---|
| United States |
| A | Lakewood, Georgia | Lakewood Assembly |
| B | Baltimore, Maryland | Baltimore Assembly |
| B | Lansing, Michigan | Lansing Craft Centre |
| C | Lansing, Michigan | Lansing C |
| D | Doraville, Georgia | Doraville Assembly |
| E | Linden, New Jersey | Linden Assembly |
| E | Pontiac, Michigan | Pontiac Assembly Center |
| F | Fairfax, Kansas | Fairfax II |
| F | Flint, Michigan | Flint Truck Assembly |
| G | Framingham, Massachusetts | Framingham Assembly |
| H | Flint, Michigan | Buick City |
| J | Janesville, Wisconsin | Janesville Assembly |
| K | Leeds, Missouri | Leeds Assembly |
| L | Van Nuys, California | Van Nuys Assembly |
| M | Lansing, Michigan | Lansing Car Chassis Assembly |
| N | Norwood, Ohio | Norwood Assembly |
| O | Lansing, Michigan | Lansing O |
| P | Pontiac, Michigan | Pontiac Assembly |
| Q | Detroit, Michigan | Detroit Assembly |
| R | Arlington, Texas | Arlington Assembly |
| S | St. Louis, Missouri | St. Louis Truck Assembly |
| T | Tarrytown, New York | Tarrytown Truck Assembly |
| U | Hamtramck, Michigan | Detroit/Hamtramck Assembly |
| V | Pontiac, Michigan | Pontiac Assembly Center |
| W | Willow Run, Michigan | Willow Run Assembly |
| X | Fairfax, Kansas | Fairfax Assembly |
| Y | Wilmington, Delaware | Wilmington Assembly |
| Z | Fort Wayne, Indiana | Fort Wayne Assembly |
| Z | Fremont, California | Fremont Assembly |
| Z | Spring Hill, Tennessee | Spring Hill Manufacturing |
| 0 | Pontiac, Michigan | Pontiac Assembly Center |
| 1 | Wentzville, Missouri | Wentzville Assembly |
| 2 | Moraine, Ohio | Moraine Assembly |
| 3 | Detroit, Michigan | Detroit Truck Assembly |
| 4 | Orion, Michigan | Orion Assembly |
| 5 | Bowling Green, Kentucky | Bowling Green Assembly Plant |
| 6 | Oklahoma City, Oklahoma | Oklahoma City Assembly |
| 7 | Lordstown, Ohio | Lordstown Assembly |
| 8 | Shreveport, Louisiana | Shreveport Operations |
| 9 | Detroit, Michigan | Detroit Cadillac |
rest of the world |
| B | Bupyong, Korea | Bupyong |
| K | Kosai, Japan | Kosai Assembly |
| S | Ramos Arizpe, Mexico | Ramos Arizpe |
| W | Iwata, Japan | Iwata |
| 1 | Oshawa, Ontario | Oshawa Car Assembly |
| 2 | Saint Therese, Quebec | Saint Therese Assembly |
| 3 | Kawasaki, Japan | Kawasaki |
| 3 | St-Eustache, Québec | St-Eustache |
| 4 | Scarborough, Ontario | Scarborough |
| 5 | London, Ontario | London |
| 6 | Ingersoll, Ontario | Ingersoll Assembly |
| 7 | Fujisawa, Japan | Fujisawa |
| 9 | Tillsonburg, Ontario | Tillonsburg Assembly |
|
