How to service and repair the headlamp dimmer switch on Buick Regal?

Service and repair of the headlamp Dimmer Switch starts with setting the lever to the middle off position while disconnecting the negative Battery Cable. Disabling the sir system enables removal of the Steering Wheel followed by the steering column trim covers. Remove the wire harness straps belonging to the steering column then separate the multifunction and turn signal and hazard switch assembly connector from the sir coil assembly connector. Remove the screws securing the multifunction, turn signal and hazard switch assembly from the steering column tilt head assembly to extract the assembly from the bulkhead connector. Additionally, detach the multifunction and turn signal and hazard switch connectors out of the bulkhead connector and extract the assembly. You should apply a small flat-blade tool against the electrical contact to position the multifunction, turn signal, and hazard switch assembly onto the steering column where the electrical contact rests on the turn signal canceling cam. Order the installation by screwing the assembly to 7 nm (62 inch lbs.) then connect the bulkhead connector to its assembly and finalize the connection with the sir coil assembly. The wire harness assembly needs to be reinstalled to the steering column wire harness straps before checking the lever position is center or off. Then add the Steering Wheel and steering column trim covers. The sir system becomes operational after enabling it along with negative Battery Cable reconnection.

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Buick Turn Signal Switch Part Number: 88964579
$161.21
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Product Specifications
- Other Name: Switch Assembly, Turn Signal & Headlamp Dimmer, Wiper & Washer (W/Lever); Multi Purpose Switch; Combination Switch
- Replaces: 26081120, 26067714, 26085928
Fits the following Buick Models:
- Century | 1997-2004 | Custom, Limited | 6 Cyl 3.1 L GAS
- Regal | 1997-2004 | 25th Anniversary Edition, GS, GSE, LS, LSE | 6 Cyl 3.8 L GAS
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Buick Turn Signal Switch Part Number: 25761901
Product Specifications
- Other Name: Switch, Headlamp/Fog Lamp/Turn Signal; Multi Purpose Switch; Multifunction Switch; Headlamp, Wiper Control, Turn Signal, Dimmer Switch.
Fits the following Buick Models:
- Lucerne | 2006-2011 | CX, CXL, CXL Special Edition, CXS, Super | 6 Cyl 3.8 L GAS, 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS, 8 Cyl 4.6 L GAS
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Buick Turn Signal Switch Part Number: 26057323
Product Specifications
- Other Name: Switch Assembly, Turn Signal & Headlamp Dimmer, Wiper & Washer (W/Lever); Multi Purpose Switch; Signal Switch; Switch, Windshield Wiper Control; Switch, Turn Signal Lamp; Switch, Headlamp Dimmer
Fits the following Buick Models:
- LeSabre | 2000-2002 | Custom, Limited | 6 Cyl 3.8 L GAS
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Buick Dimmer Switch Part Number: 26035567
Product Specifications
- Other Name: Switch, Dimmer; Multi Purpose Switch; Headlamp Switch; Headlamp Dimmer Switch; Switch, Headlamp Dimmer
- Replaces: 26000904
Fits the following Buick Models:
- Electra | 1985-1988 | Limited, Park Avenue, T-Type | 6 Cyl 3.0 L GAS, 6 Cyl 3.8 L GAS, 6 Cyl 4.3 L DIESEL
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Buick Dimmer Switch Part Number: 26035242
Product Specifications
- Other Name: Switch, Dimmer; Multi Purpose Switch; Headlamp Dimmer Switch; Switch, Headlamp Dimmer
Fits the following Buick Models:
- Roadmaster | 1996 | Collector's Edition, Estate Wagon Collector's Edition, Limited Collector's Edition | 8 Cyl 5.7 L GAS
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Buick Turn Signal Switch Part Number: 88965328
$305.21 MSRP: $547.46
You Save: $242.25 (45%)
Product Specifications
- Other Name: Switch Assembly, Turn Signal & Headlamp Dimmer, Wiper & Washer (W/Lever); Multi Purpose Switch; Signal Switch; Switch, Windshield Wiper Control; Switch, Turn Signal Lamp; Switch, Headlamp Dimmer
- Replaces: 26093875
Fits the following Buick Models:
- LeSabre | 2002-2005 | Custom, Limited | 6 Cyl 3.8 L GAS
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Buick Combination Switch Part Number: 26062938
Product Specifications
- Other Name: Switch Assembly, Turn Signal & Headlamp Dimmer, Windshield Wiper & Washer Switch.; Wiper Switch; Turn Signal & Hazard Control; Headlamp Dimmer
- Replaces: 26058478
Fits the following Buick Models:
- Riviera | 1995-1996 | Base | 6 Cyl 3.8 L GAS
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Buick Headlamp Switch Part Number: 15119443
Product Specifications
- Other Name: Switch, Headlamp/Fog Lamp/Turn Signal; Multi Purpose Switch
Fits the following Buick Models:
- Terraza | 2005-2007 | CX, CXL | 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS
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Buick Dimmer Switch Part Number: 10499721
Product Specifications
- Other Name: Switch, Dimmer; Multi Purpose Switch; Headlamp Dimmer Switch; Switch, Headlamp Dimmer
Fits the following Buick Models:
- Century | 1991-1996 | Custom, Limited, Special | 4 Cyl 2.2 L GAS, 4 Cyl 2.5 L GAS, 6 Cyl 3.1 L GAS, 6 Cyl 3.3 L GAS
- Electra | 1988-1990 | Limited, Park Avenue, Park Avenue Ultra, T-Type | 6 Cyl 3.8 L GAS
- LeSabre | 1990-1997 | Base, Custom, Limited | 6 Cyl 3.8 L GAS
- Park Avenue | 1991-1995 | Base, Ultra | 6 Cyl 3.8 L GAS
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Buick Headlamp Dimmer Switch Part Number: 7841239
Product Specifications
- Other Name: Switch, Steering Column Dimmer; Multi Purpose Switch
- Replaced by: 26035244
Fits the following Buick Models:
- Century | 1984-1990 | Custom, Estate Wagon, Limited, T-Type | 4 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.3 L GAS, 6 Cyl 3.8 L GAS, 6 Cyl 4.3 L DIESEL
- LeSabre | 1986-1988 | Base, Custom, Limited, T-Type | 6 Cyl 3.0 L GAS, 6 Cyl 3.8 L GAS
- Skylark | 1984-1985 | Custom, Limited, T-Type | 4 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS
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Buick Dimmer Switch Part Number: 10498759
Product Specifications
- Other Name: Switch, Dimmer; Multi Purpose Switch; Headlamp Dimmer Switch; Switch, Headlamp Dimmer
Fits the following Buick Models:
- Regal | 1988-1993 | Custom, Gran Sport, Limited | 6 Cyl 2.8 L GAS, 6 Cyl 3.1 L GAS, 6 Cyl 3.8 L GAS
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Buick Dimmer Switch Part Number: 10467409
Product Specifications
- Other Name: Switch, Dimmer; Multi Purpose Switch; Headlamp Dimmer Switch; Switch, Headlamp Dimmer
Fits the following Buick Models:
- LeSabre | 1995-1999, 1990 | Base, Custom, Limited | 6 Cyl 3.8 L GAS
- Park Avenue | 1996 | Base, Ultra | 6 Cyl 3.8 L GAS
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Buick Dimmer Switch Part Number: 26014807
Product Specifications
- Other Name: Switch, Headlamp Dimmer; Multi Purpose Switch; Headlamp Dimmer Switch
Fits the following Buick Models:
- Reatta | 1990-1991 | Base | 6 Cyl 3.8 L GAS
- Riviera | 1990-1993 | Luxury | 6 Cyl 3.8 L GAS
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Buick Wiper Switch Part Number: 7840274
Product Specifications
- Other Name: Switch, Dimmer Pivot; Windshield Washer Switch; Multi Purpose Switch; Headlamp Dimmer Switch; Switch Assembly, Windshield Wiper Control; Switch, Headlamp Dimmer
Fits the following Buick Models:
- Skylark | 1984-1985 | Custom, Limited, T-Type | 4 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS
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Buick Headlamp Dimmer Switch Part Number: 7837281
Product Specifications
- Other Name: Switch, Dimmer Pivot; Multi Purpose Switch
Fits the following Buick Models:
- Skylark | 1984-1985 | Custom, Limited, T-Type | 4 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS
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Buick Wiper Switch Part Number: 7835342
Product Specifications
- Other Name: Switch-Pivot & 2 Speed; Windshield Washer Switch; Multi Purpose Switch; Switch Assembly; Switch Assembly, Windshield Wiper Control; Switch, Windshield Wiper Control
Fits the following Buick Models:
- Electra | 1989, 1984-1985 | Estate Wagon, Limited, Park Avenue | 6 Cyl 4.1 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
- LeSabre | 1988-1990, 1984-1985 | Collector's Edition, Custom, Estate Wagon, Limited | 6 Cyl 3.8 L GAS, 6 Cyl 4.1 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
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Buick Wiper Switch Part Number: 7837279
Product Specifications
- Other Name: Windshield Wiper Switch; Windshield Washer Switch; Multi Purpose Switch; Headlamp Dimmer Switch; Switch Assembly
Fits the following Buick Models:
- Electra | 1986-1987
- LeSabre | 1986-1987 | Estate Wagon | 8 Cyl 5.0 L GAS
- Riviera | 1984-1985 | Base, Luxury, T-Type | 6 Cyl 3.8 L GAS, 6 Cyl 4.1 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
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Buick Combination Switch Part Number: 22581550
Product Specifications
- Other Name: Switch, Headlamp Dimmer; Windshield Washer Switch; Multi Purpose Switch; Wiper Switch; Headlamp Dimmer Switch; Switch, Windshield Wiper Control
Fits the following Buick Models:
- Skylark | 1996-1998 | Custom, Gran Sport, Limited, Olympic Gold Edition | 4 Cyl 2.4 L GAS, 6 Cyl 3.1 L GAS
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Buick Headlamp Switch Part Number: 10238350
Product Specifications
- Other Name: Switch, Headlamp/Fog Lamp/Turn Signal; Multi Purpose Switch
Fits the following Buick Models:
- Regal | 1995-1996 | Custom, Gran Sport, Limited, Olympic Gold Edition | 6 Cyl 3.1 L GAS, 6 Cyl 3.8 L GAS
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Buick Headlamp Switch Part Number: 19005022
Product Specifications
- Other Name: Multi Purpose Switch; Combination Switch; Switch, Headlamp/Fog Lamp/Turn Signal; Switch, Headlamp Dimmer
- Replaces: 01995921, 1995985, 01995985, 1995921
Fits the following Buick Models:
- Skylark | 1992-1993 | Custom, Gran Sport, Limited | 4 Cyl 2.3 L GAS, 6 Cyl 3.3 L GAS

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Buick Dimmer Switch

Choose OEM Dimmer Switch, you're making the optimal decision for superior quality and perfect performance. You can feel confident because each component goes through stringent quality checks. Every part is carefully built to comply with Buick's factory specifications. You'll enjoy a smooth, worry-free installation that fits just right. At ChevyPartsDeal.com, you'll find it easy to get top-quality OEM Buick Dimmer Switch. You can shop at highly competitive prices and protect your budget. All our genuine Buick parts include a dependable manufacturer's warranty. You'll also appreciate our straightforward return policy and swift delivery services for extra convenience.

Buick Dimmer Switch Parts and Q&A

Turn Signal Switch
88963625
Q: How to service and repair the headlamp dimmer switch on Buick Regal?
A:
Service and repair of the headlamp Dimmer Switch starts with setting the lever to the middle off position while disconnecting the negative Battery Cable. Disabling the sir system enables removal of the Steering Wheel followed by the steering column trim covers. Remove the wire harness straps belonging to the steering column then separate the multifunction and turn signal and hazard switch assembly connector from the sir coil assembly connector. Remove the screws securing the multifunction, turn signal and hazard switch assembly from the steering column tilt head assembly to extract the assembly from the bulkhead connector. Additionally, detach the multifunction and turn signal and hazard switch connectors out of the bulkhead connector and extract the assembly. You should apply a small flat-blade tool against the electrical contact to position the multifunction, turn signal, and hazard switch assembly onto the steering column where the electrical contact rests on the turn signal canceling cam. Order the installation by screwing the assembly to 7 nm (62 inch lbs.) then connect the bulkhead connector to its assembly and finalize the connection with the sir coil assembly. The wire harness assembly needs to be reinstalled to the steering column wire harness straps before checking the lever position is center or off. Then add the Steering Wheel and steering column trim covers. The sir system becomes operational after enabling it along with negative Battery Cable reconnection.