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1G0 1G1 1G2 1G3 1G4 1G5 1G6 1G7 1G8 1GA 1GB 1GC 1GD 1GE 1GG 1GH 1GJ 1GK 1GM 1GN 1GT 1GY 2C1 2C2 2CG 2CK 2CN 2CT 2G0 2G1 2G2 2G3 2G4 2G5 2G6 2G7 2G8 2GA 2GB 2GC 2GD 2GE 2GH 2GJ 2GK 2GN 2GT 3G0 3G1 3G2 3G3 3G4 3G5 3G7 3GB 3GC 3GD 3GG 3GK 3GM …

General Motors LLC

General Motors LLC holds 108 WMIs in NHTSA's catalog, more than any other holder among 11,625 manufacturers. Its codes decode 19 makes: Acura, BrightDrop, Buick, Cadillac, Chevrolet and 14 others. The rules under its codes name 313 models, the fifth-longest combined list of the 113 makers profiled here. Plants in 11 countries appear in its rules.

Model years covered by each code

One bar per three-character code, grouped by the vehicle type NHTSA lists for it. Bars reaching 2027 include rules with no end year.

Passenger cars 37

  1. 1G01981–2018
  2. 1G11981–2027
  3. 1G21981–2010
  4. 1G31981–2004
  5. 1G41981–2019
  6. 1G61981–2027
  7. 1G71981–2008
  8. 1G81981–2010
  9. 2C11981–2010
  10. 2G11981–2020
  11. 2G21981–2010
  12. 2G31981–2004
  13. 2G41981–2017
  14. 2G71981–1983
  15. 3G31981–1994
  16. 3G11985–2024
  17. 3G21985–2010
  18. 3G41985–2010
  19. 4G11985–2003
  20. JG11985–1996
  21. JG21985–1996
  22. KL21985–2010
  23. 4G21995–2003
  24. 4G31996–2004
  25. 4G51997–2000
  26. 6G22002–2009
  27. 2C22003–2010
  28. KL12004–2013
  29. 2G62006–2019
  30. 5G82006–2016
  31. 5GD2006–2008
  32. LSG2006–2019
  33. 6G12011–2013
  34. 6G32011–2017
  35. KL82012–2022
  36. W0V2017–2019
  37. 5G22020–2025

Multipurpose passenger vehicles 36

  1. 1G51981–2009
  2. 1GK1981–2027
  3. 1GN1981–2027
  4. 2CG1981–2010
  5. 2G81981–1986
  6. 2GK1981–2021
  7. 2GN1981–2023
  8. KL71985–2027
  9. 1GH1989–2021
  10. 1GM1989–2009
  11. 2CK1989–2009
  12. 2CN1989–2014
  13. 2CT1989–2014
  14. 1GY1995–2027
  15. 3GK1995–2027
  16. 3GN1995–2027
  17. 4GD1997–2008
  18. 3GM1999–2008
  19. 3G52000–2008
  20. 3G72000–2009
  21. 5GZ2001–2010
  22. 3GY2002–2027
  23. 4NT2003–2009
  24. 4NU2003–2009
  25. 5GR2003–2011
  26. 5GA2004–2027
  27. 5S32005–2009
  28. 3GS2006–2010
  29. 5GT2006–2011
  30. 3G02011–2021
  31. KL42013–2027
  32. 3GP2024–2027
  33. 4W12024–2027
  34. 4W52024–2027
  35. 5G32024

Trucks 16

  1. 1GC1981–2027
  2. 1GT1981–2027
  3. 2G51981–2025
  4. 2GC1981–2027
  5. 2GT1981–2026
  6. 3GC1981–2027
  7. 3GT1981–2027
  8. JGC1981–1996
  9. JGT1981–1996
  10. 4GT1992–2010
  11. J8C1995–1996
  12. J8T1995–1996
  13. 1GG1996–2009
  14. 5GN2006–2011
  15. 3GG2011–2013
  16. 5G52022–2025

Incomplete vehicles 13

  1. 1GB1981–2027
  2. 1GD1981–2027
  3. 1GE1981–2027
  4. 2GB1981–2019
  5. 2GD1981–2019
  6. 4GL1988–2008
  7. 4KB1989–2009
  8. 4KD1989–2009
  9. 4KL1992–2010
  10. 3GB1995–2027
  11. 3GD1995–2027
  12. 4NS2004
  13. 2GE2006–2019

Buses 6

  1. 1GA1981–2027
  2. 1GJ1981–2027
  3. 2G01981–1986
  4. 2GA1981–1993
  5. 2GH1981–1987
  6. 2GJ1981–1994

Every code, side by side

CodeVehicle typeMakesModel yearsModelsPlant countries
1G0passenger carsOpel1981–201811United States, Canada, Mexico
1G1passenger carsChevrolet1981–open39United States, Canada, Mexico
1G2passenger carsPontiac1981–201030United States, Canada, Mexico
1G3passenger carsOldsmobile1981–200419United States
1G4passenger carsBuick1981–201916United States, Canada, Mexico
1G5multipurpose passenger vehiclesGMC, Pontiac1981–200919United States
1G6passenger carsCadillac1981–open23United States, China, Canada
1G7passenger carsPontiac1981–200821United States, Canada, Japan
1G8passenger carsSaturn1981–201030United States, Canada, Mexico
1GAbusesChevrolet1981–open23United States
1GBincomplete vehicles (chassis)Chevrolet1981–open46United States, Mexico, Canada
1GCtrucksChevrolet1981–open40United States, Mexico, Canada
1GDincomplete vehicles (chassis)GMC1981–open39United States, Mexico, Canada
1GEincomplete vehicles (chassis)Cadillac1981–open17United States
1GGtrucksIsuzu1996–20095United States
1GHmultipurpose passenger vehiclesHolden, Oldsmobile1989–20213United States
1GJbusesGMC1981–open17United States
1GKmultipurpose passenger vehiclesGMC1981–open21United States
1GMmultipurpose passenger vehiclesPontiac1989–20095United States
1GNmultipurpose passenger vehiclesChevrolet1981–open23United States, Canada
1GTtrucksGMC1981–open35United States, Mexico, Canada
1GYmultipurpose passenger vehiclesCadillac1995–open12United States
2C1passenger carsChevrolet, Geo1981–201024Canada, Mexico, United States
2C2passenger carsPontiac2003–20109Canada, Mexico, South Korea
2CGmultipurpose passenger vehiclesPontiac1981–20103Mexico, Canada, United States
2CKmultipurpose passenger vehiclesGMC, Geo, Pontiac1989–20095Canada, Mexico, United States
2CNmultipurpose passenger vehiclesChevrolet, Geo1989–201414Canada, United States, Mexico
2CTmultipurpose passenger vehiclesGMC1989–20145Canada, United States, Mexico
2G0busesGMC1981–19861Japan, South Korea, Canada
2G1passenger carsChevrolet1981–202034Canada, Mexico, United States
2G2passenger carsPontiac1981–201030Canada, Mexico, United States
2G3passenger carsOldsmobile1981–200419Canada, Mexico, United States
2G4passenger carsBuick1981–201716Canada, Mexico, United States
2G5trucksBrightDrop, Chevrolet1981–20255Canada, Japan, South Korea
2G6passenger carsCadillac2006–20191Canada, South Korea, Mexico
2G7passenger carsPontiac1981–198314Canada, United States, Japan
2G8multipurpose passenger vehiclesChevrolet1981–19865Japan, South Korea, Canada
2GAbusesChevrolet1981–19933Japan, South Korea, Canada
2GBincomplete vehicles (chassis)Chevrolet1981–201928Canada, United States, Mexico
2GCtrucksChevrolet1981–open21Canada, United States, Mexico
2GDincomplete vehicles (chassis)GMC1981–201916Canada, United States, Mexico
2GEincomplete vehicles (chassis)Cadillac2006–20193Canada
2GHbusesGMC1981–19872United States, Japan, South Korea
2GJbusesGMC1981–19945Japan, South Korea, Canada
2GKmultipurpose passenger vehiclesGMC1981–20215Canada, Mexico, Japan
2GNmultipurpose passenger vehiclesChevrolet1981–20236Canada, Mexico, United States
2GTtrucksGMC1981–202617Canada, United States, Mexico
3G0multipurpose passenger vehiclesHolden, Saab2011–20212Mexico
3G1passenger carsChevrolet1985–202434Mexico, Canada, United States
3G2passenger carsPontiac1985–201026Mexico, Canada, South Korea
3G3passenger carsOldsmobile1981–199414United States, Japan, Mexico
3G4passenger carsBuick1985–201015Mexico, Canada, South Korea
3G5multipurpose passenger vehiclesBuick2000–20085Mexico, United States, Canada
3G7multipurpose passenger vehiclesPontiac2000–20094Mexico, United States, Canada
3GBincomplete vehicles (chassis)Chevrolet1995–open13Mexico, United States, Canada
3GCtrucksChevrolet1981–open12Mexico, United States, Canada
3GDincomplete vehicles (chassis)GMC, Saab1995–open8Mexico, United States, Canada
3GGtrucksCadillac2011–20132Mexico
3GKmultipurpose passenger vehiclesGMC1995–open7Mexico, Canada, United States
3GMmultipurpose passenger vehiclesChevrolet1999–20083Mexico, Canada, United States
3GNmultipurpose passenger vehiclesChevrolet1995–open16Mexico, Canada, United States
3GPmultipurpose passenger vehiclesHonda2024–open1Mexico
3GSmultipurpose passenger vehiclesSaturn2006–20102Mexico, United States, Japan
3GTtrucksGMC1981–open9Mexico, United States, Canada
3GYmultipurpose passenger vehiclesCadillac2002–open5Mexico, Canada, United States
4G1passenger carsChevrolet1985–200313United States
4G2passenger carsPontiac1995–20038United States
4G3passenger carsChevrolet1996–200418United States
4G5passenger carsGMC1997–20007United States
4GDmultipurpose passenger vehiclesGMC, Opel1997–20085United States
4GLincomplete vehicles (chassis)Buick1988–20087United States
4GTtrucksIsuzu1992–201015Japan, United States
4KBincomplete vehicles (chassis)Chevrolet1989–20095United States, Mexico, Japan
4KDincomplete vehicles (chassis)GMC1989–20095United States, Mexico, Japan
4KLincomplete vehicles (chassis)Isuzu1992–201015Japan, United States
4NSincomplete vehicles (chassis)Oldsmobile20041United States
4NTmultipurpose passenger vehiclesSaturn2003–20092United States
4NUmultipurpose passenger vehiclesIsuzu2003–20091United States
4W1multipurpose passenger vehiclesChevrolet2024–open1United States
4W5multipurpose passenger vehiclesAcura2024–open1United States
5G2passenger carsCruise2020–20251United States
5G3multipurpose passenger vehiclesGMC20241United States
5G5trucksBrightDrop2022–20251United States
5G8passenger carsHolden2006–20161United States, Australia
5GAmultipurpose passenger vehiclesBuick2004–open4United States, Canada, Mexico
5GDpassenger carsDaewoo2006–20081United States
5GNtrucksHummer2006–20113United States
5GRmultipurpose passenger vehiclesHummer2003–20112United States
5GTmultipurpose passenger vehiclesHummer2006–20112United States
5GZmultipurpose passenger vehiclesSaturn2001–20103United States
5S3multipurpose passenger vehiclesSaab2005–20091United States
6G1passenger carsChevrolet2011–201311Australia
6G2passenger carsPontiac2002–200914Australia, Belgium, South Korea
6G3passenger carsChevrolet2011–20172Australia
ADMmultipurpose passenger vehiclesHummer–0–
J8CtrucksIsuzu1995–19960Canada, Japan, United States
J8TtrucksIsuzu1995–19960United States, Japan, Canada
JG1passenger carsChevrolet, Geo1985–199620Mexico, Canada, Japan
JG2passenger carsPontiac1985–199616Mexico, Canada, Japan
JGCtrucksSuzuki1981–19961United States, Japan, Canada
JGTtrucksGMC, Suzuki1981–19961Canada, Japan, United States
KL1passenger carsChevrolet2004–201319South Korea, Canada, Mexico
KL2passenger carsPontiac1985–201026Mexico, South Korea, Canada
KL4multipurpose passenger vehiclesBuick2013–open3South Korea, United States, China
KL7multipurpose passenger vehiclesChevrolet1985–open14South Korea, Mexico, Canada
KL8passenger carsChevrolet2012–20221South Korea, Poland, Canada
LSGpassenger carsCadillac2006–20196China, South Korea, Mexico
W0Vpassenger carsOpel2017–20192United States

Models found under the most codes

Model, model years across all codes, and how many of the codes name it

  • Suburban1981–2027 · 22 codes
  • GMT-4001987–2002 · 17 codes
  • C/K Pickup1981–2006 · 15 codes
  • Equinox2005–2027 · 13 codes
  • S-10 Pickup1982–2005 · 12 codes
  • R Conventional1987–1991 · 12 codes
  • V Conventional1987–1991 · 12 codes
  • Acadia2007–2027 · 12 codes
  • Bonneville1981–2005 · 11 codes
  • Grand Prix1981–2008 · 11 codes
  • Safari1985–2005 · 11 codes
  • Yukon1992–2027 · 11 codes
  • Yukon XL1995–2027 · 11 codes
  • 3 ton2001–2004 · 11 codes
  • Avalanche2002–2013 · 11 codes
  • HHR2006–2011 · 11 codes
  • Camaro1981–2024 · 10 codes
  • Corvette1981–2027 · 10 codes
  • Firebird1981–2002 · 10 codes
  • G-Series1981–1996 · 10 codes
  • Rally1981–1996 · 10 codes
  • Grand AM1985–2005 · 10 codes
  • Sierra1989–2027 · 10 codes
  • Express1997–2027 · 10 codes
  • Silverado1999–2027 · 10 codes
  • Terrain2009–2027 · 10 codes
  • Cavalier1981–2005 · 9 codes
  • Impala1981–2020 · 9 codes
  • Monte Carlo1981–2007 · 9 codes
  • Canyon2004–2027 · 9 codes
  • Matiz2004–2012 · 9 codes
  • 60001981–1991 · 8 codes
  • Blazer1981–2027 · 8 codes
  • Caprice1981–1996 · 8 codes
  • Lemans1981–1993 · 8 codes
  • Malibu1981–2025 · 8 codes
  • Motorhome Chassis1981–1999 · 8 codes
  • Parisienne1981–1989 · 8 codes
  • Beretta1985–1996 · 8 codes
  • Corsica1985–1996 · 8 codes
  • Firefly1985–1995 · 8 codes
  • Sunbird1985–1995 · 8 codes
  • Metro1989–2001 · 8 codes
  • Lumina1990–2001 · 8 codes
  • Tahoe1995–2027 · 8 codes
  • Sunfire1996–2005 · 8 codes
  • Alero1999–2004 · 8 codes
  • Acadian1981–1987 · 7 codes

Codes per make

Number of General Motors codes that decode each make

  1. Chevrolet29
  2. GMC21
  3. Pontiac15
  4. Cadillac8
  5. Buick7
  6. Isuzu6
  7. Oldsmobile5
  8. Saturn4
  9. Geo4
  10. Hummer4
  11. Opel3
  12. Holden3

Source: NHTSA vPIC, October 2026 release (database updated October 17, 2026). How the figures are counted: How the catalog is read.