How to Service and Repair the Turn Signal Flasher on Buick Century?

You need to remove three parts in order to replace the hazard and turn signal flasher: take out the left instrument panel insulator, detach the steering column filler panel and the I/P driver knee bolster bracket. Press the hazard and turn signal flasher to the side until it escapes from the BCM bracket tracks before unplugging the electrical connector. First connect the electrical connector to the hazard and signal flasher, place the flasher unit on the BCM bracket, and push it to the left until flasher tabs fit the holding slots. Reinstall the I/P driver knee bolster bracket plus the steering column filler panel and left I/P insulator in their original positions.

How to service the turn signal flasher on Buick Regal?

Start service of the turn signal flasher by removing both the LH instrument panel insulator and steering column tiller panel. Press the signal turn hazard button while moving it to the right. This free the flasher tabs from slots on BCM bracket while disconnecting its electrical connector. Place the hazard and turn signal flasher electricity plug into place and push the flasher to the BCM bracket. Swing the flasher to the left until the tabs insert into their slots for secure installation. Reinsert the steering column filler panel as you add back the LH IP insulator.

OEM Buick Turn Signal Flasher

Turn Signal Indicator Flasher

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Part Number: 19116962
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Product Specifications
- Other Name: Relay, Air Conditioner Electrical; Multi Purpose Relay; Fog Light Relay; Fan Relay; Horn Relay; Compressor Relay; Relay
- Replaced by: 13500113
Fits the following Buick Models:
- Enclave | 2008-2024 | Avenir, Base, Convenience, CX, CXL, Essence, Leather, Preferred, Premium | 6 Cyl 3.6 L GAS
- Envision | 2021-2023 | Avenir, Essence, Preferred | 4 Cyl 2.0 L GAS
- Lucerne | 2008-2011 | 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 Flasher
Part Number: 12450054
$12.23 MSRP: $17.09
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Product Specifications
- Other Name: Flasher; Hazard Flasher; Flasher, Chassis/Body Marker/Hazard; Flasher, Turn Signal Lamp
Fits the following Buick Models:
- Century | 1997-2005 | Custom, Limited, Special Edition | 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 Fuel Pump Relay
Part Number: 12088594
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Product Specifications
- Other Name: Relay, Electronic Brake Control; Multi Purpose Relay; Cooling Fan Relay; Fog Light Relay; ABS Relay; A/C Relay, relays for fan, control, power, compressor, motor, lighting & fuel
- Replaces: 12034544, 15210866, 15591178, 22555387, 25609047, 12088596, 22570060
Fits the following Buick Models:
- LeSabre | 1992-1999 | Custom, Limited | 6 Cyl 3.8 L GAS
- Reatta | 1988-1991 | Base | 6 Cyl 3.8 L GAS
- Riviera | 1988 | Luxury, T-Type | 6 Cyl 3.8 L GAS
- Roadmaster | 1991-1993 | Base, Estate Wagon, Limited | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
- Skyhawk | 1988-1989 | Custom, SE | 4 Cyl 2.0 L GAS
- Skylark | 1988-1997 | Base, Custom, Gran Sport, Limited, Luxury Edition, Olympic Gold Edition | 4 Cyl 2.3 L GAS, 4 Cyl 2.4 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
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Buick Flasher Relay
Part Number: 19209674
$15.50 MSRP: $25.52
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Product Specifications
- Other Name: Flasher Assembly, Chassis/Body Marker/Hazard; Multi Purpose Relay; Turn Signal Flasher; Hazard Flasher Unit; Relay; Chassis/Body Marker Flasher; Turn Signal Lamp Flasher.
- Replaces: 00491391, 10178780, 10041073, 10039390, 15648653, 491391, 11515735
Fits the following Buick Models:
- 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
- Electra | 1984-1990 | Estate Wagon, Limited, Park Avenue, Park Avenue Ultra, 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
- LeSabre | 1992-1999, 1984-1990 | Base, Collector's Edition, Custom, Estate Wagon, Limited, T-Type | 6 Cyl 3.0 L GAS, 6 Cyl 3.8 L GAS, 6 Cyl 4.1 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
- Park Avenue | 1991-1996 | Base, Ultra | 6 Cyl 3.8 L GAS
- Reatta | 1988-1991 | Base | 6 Cyl 3.8 L GAS
- Regal | 1984-1996 | Base, Custom, GNX, Gran Sport, Grand National, Limited, Olympic Gold Edition, T-Type | 6 Cyl 2.8 L GAS, 6 Cyl 3.1 L GAS, 6 Cyl 3.8 L GAS, 6 Cyl 4.1 L GAS, 6 Cyl 4.3 L DIESEL, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
- Riviera | 1995-1999, 1984-1993 | 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
- 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
- Skyhawk | 1984-1989 | Custom, Limited, SE, Sport, T-Type | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS
- Skylark | 1984-1995 | Base, Custom, Gran Sport, Limited, Luxury Edition, T-Type | 4 Cyl 2.3 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
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Buick Flasher
Part Number: 25684395
$71.16 MSRP: $126.52
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Product Specifications
- Other Name: Flasher,Opera And Hazard Flasher; Flasher, Turn Signal Lamp
- Replaces: 25631333
Fits the following Buick Models:
- Park Avenue | 1997-2005 | Base, Ultra | 6 Cyl 3.8 L GAS
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Buick Flasher
Part Number: 15231201
$43.85 MSRP: $85.84
You Save: $41.99 (49%)
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Product Specifications
- Other Name: Flasher, Hazard Lamp & Turn Signal Lamp; Flasher, Chassis/Body Marker/Hazard; Flasher, Turn Signal Lamp
- Replaces: 12450284, 15101912
Fits the following Buick Models:
- Rainier | 2004-2007 | CXL, CXL Plus | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
- Rendezvous | 2002-2007 | CX, CX Plus, CXL, CXL Plus, Ultra | 6 Cyl 3.4 L GAS, 6 Cyl 3.5 L GAS, 6 Cyl 3.6 L GAS
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Part Number: 25654870
Product Specifications
- Other Name: Flasher,Opera And Hazard Flasher; Flasher, Turn Signal Lamp
Fits the following Buick Models:
- LeSabre | 2000-2005 | Custom, Limited | 6 Cyl 3.8 L GAS
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Buick Turn Signal Flasher
Part Number: 10041074
Product Specifications
- Other Name: Flasher, Turn Signal Lamp
Fits the following Buick Models:
- Century | 1984-1988 | Custom, Estate, Estate Wagon, Limited, Olympia Limited, T-Type | 4 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.8 L GAS, 6 Cyl 4.3 L DIESEL
- Electra | 1988-1989 | Limited, Park Avenue, Park Avenue Ultra, T-Type | 6 Cyl 3.8 L GAS
- LeSabre | 1989-1999 | Base, Custom, Limited | 6 Cyl 3.8 L GAS
- Regal | 1984 | Base, Grand National, Limited, T-Type | 6 Cyl 3.8 L GAS, 6 Cyl 4.1 L GAS, 6 Cyl 4.3 L DIESEL
- Skyhawk | 1984-1989 | Custom, Limited, SE, Sport, T-Type | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS
- Skylark | 1984-1991 | Base, Custom, Gran Sport, Limited, Luxury Edition, T-Type | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.3 L GAS
- Somerset | 1986-1987 | Custom, Limited, T-Type | 4 Cyl 2.5 L GAS, 6 Cyl 3.0 L GAS
- Somerset Regal | 1985 | Base, Limited | 4 Cyl 2.5 L GAS, 6 Cyl 3.0 L GAS
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Buick Turn Signal Flasher
Part Number: 12450019
Product Specifications
- Other Name: Flasher; Hazard Flasher; Flasher, Chassis/Body Marker/Hazard; Flasher, Turn Signal Lamp
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

Buick Turn Signal Flasher Parts Questions & Experts Answers

Turn Signal Flasher
12450054
Q: How to Service and Repair the Turn Signal Flasher on Buick Century?
A: You need to remove three parts in order to replace the hazard and turn signal flasher: take out the left instrument panel insulator, detach the steering column filler panel and the I/P driver knee bolster bracket. Press the hazard and turn signal flasher to the side until it escapes from the BCM bracket tracks before unplugging the electrical connector. First connect the electrical connector to the hazard and signal flasher, place the flasher unit on the BCM bracket, and push it to the left until flasher tabs fit the holding slots. Reinstall the I/P driver knee bolster bracket plus the steering column filler panel and left I/P insulator in their original positions.
Turn Signal Flasher
12450054
Q: How to service the turn signal flasher on Buick Regal?
A: Start service of the turn signal flasher by removing both the LH instrument panel insulator and steering column tiller panel. Press the signal turn hazard button while moving it to the right. This free the flasher tabs from slots on BCM bracket while disconnecting its electrical connector. Place the hazard and turn signal flasher electricity plug into place and push the flasher to the BCM bracket. Swing the flasher to the left until the tabs insert into their slots for secure installation. Reinsert the steering column filler panel as you add back the LH IP insulator.