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Genuine GM 

20589218

Door Jamb Switch

Part Description SWITCH, Courtesy Lamp and Door Ajar
Part Notes
All Models; Pontiac; Front Door; Oldsmobile, Pontiac; Rear; Double Pole; One Circuit; All; Single Contact; Right; Single pole; w/o Diagnostic System; Front; Rear Door; Buick, Oldsmobile; Left; Single Pole; 2 DOOR; 4 DOOR; Beretta, Corsica; Chevrolet; Buick, Chevrolet; Buick; w/Single Pole
Brand GM
Warranty Genuine GM parts are backed by GM's factory warranty which are high-quality vehicle-specific with the right fit the first time.
Manufacturer's Notes

This part is discontinued. It is no longer available for purchase.

Vehicle Specific

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Select Your Vehicle

Discontinued Part

Part Fitment for 20589218

Make Model Year
  • Trim
  • Engine

Buick Century

1984-1996

  • Custom, Estate, Estate Wagon, Limited, Olympia Limited, Special, T-Type

  • 4 Cyl 2.2 L GAS, 4 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.1 L GAS, 6 Cyl 3.3 L GAS, 6 Cyl 3.8 L GAS, 6 Cyl 4.3 L DIESEL

Buick Commercial Chassis

1991-1996

  • Base

  • 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS

Buick Electra

1985-1990

  • Limited, Park Avenue, Park Avenue Ultra, T-Type

  • 6 Cyl 3.0 L GAS, 6 Cyl 3.8 L GAS, 6 Cyl 4.3 L DIESEL

Buick LeSabre

1986-1991

  • Base, Custom, Limited, T-Type

  • 6 Cyl 3.0 L GAS, 6 Cyl 3.8 L GAS

Buick Park Avenue

1991

  • Base, Ultra

  • 6 Cyl 3.8 L GAS

Buick Regal

1988-1996

  • Custom, Gran Sport, Limited, Olympic Gold Edition

  • 6 Cyl 2.8 L GAS, 6 Cyl 3.1 L GAS, 6 Cyl 3.8 L GAS

Buick Roadmaster

1991-1996

  • Base, Collector's Edition, Estate Wagon, Estate Wagon Collector's Edition, Limited, Limited Collector's Edition

  • 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS

Buick Skyhawk

1984-1989

  • Custom, Limited, SE, Sport, T-Type

  • 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS

Buick Skylark

1986-1995

  • Base, Custom, Gran Sport, Limited, Luxury Edition

  • 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.1 L GAS, 6 Cyl 3.3 L GAS

Buick Somerset

1986-1987

  • Custom, Limited, T-Type

  • 4 Cyl 2.5 L GAS, 6 Cyl 3.0 L GAS

View More

California Residents

Warning: Cancer and reproductive harm - www.P65Warnings.ca.gov

Genuine GM 20589218 at GM Parts Prime, Your Right Choice

This GM part # 20589218 is a Door Jamb Switch and carries a factory warranty. It is sometimes referred to as Door Jamb Switch. We offer the best online prices with fast shipping on any order placed with us. This part fits Buick LeSabre, Park Avenue, Regal. It fits Cadillac Brougham, DeVille, Fleetwood. It also fits Chevrolet Camaro, Cavalier, Impala. This also fits Pontiac Bonneville, Firebird, Grand Prix. All our GM parts and accessories are shipped directly from authorized GM dealers and backed by the manufacturer's warranty.
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This part contains hazardous material.

This part is a packaged part and contains multiple quantities of: (Pack Qty: 4)

This part is a packaged part and contains multiple quantities of the same item. In an effort to simplify packaging GM will sometimes include multiple parts in a package.