A GM Oshawa komplexum közel 10 millió négyzetméteres, működését 1908-ban kezdte meg. Az alábbi márkákat, illetve típusokat gyártották:
1908-2011 McLaughlin Car Company of Canada Limited/with Buick motor1915-2011 Chevrolet1918 General Motors of Canada Limited was the name after the merge in Canada and later with the Corporation1919-2010 Chevrolet Trucks1920-1969 Oldsmobile1920-1921 Sampson Truck
1923 GMC
1923-1936 Cadillac
1927-1935 LaSalle
1926-2007 Pontiac
1929-1930 Marquette
1940-1958 Pontiac Trucks
1961-1969 Acadian
2005–2008 Buick LaCrosse/Allure
1995–2007 Chevrolet Monte Carlo
2004–2007 Pontiac Grand Prix
1988–2004 Buick Regal
1982–2005 Buick Century
1982–1990 Chevrolet Celebrity
1990–2001 Chevrolet Lumina
1982–1988 Pontiac 6000
Chevrolet Caprice Classic
1978–1981 Chevrolet Malibu
1976–1981 Chevrolet Bel Air
1973–1975 Chevrolet Biscayne
Chevrolet Kingswood Estate (Chevrolet Caprice)
Chevrolet Kingswood (Chevrolet Impala)
Chevrolet Townsman (Chevrolet Bel Air)
1969–1972 Chevrolet Brookwood (Chevrolet Biscayne) station wagons
Pontiac Strato Chief
Pontiac Laurentian
1958–1986 Pontiac Parisienne
Pontiac Grande Parisienne
Pontiac Catalina
Pontiac Bonneville
Pontiac LeMans
Chevrolet Monte Carlo