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Buick 12450066 Turn Signal Switch

2004-2007 Buick Rainier

Customer Questions & Expert Answers (3)
12450066 GM Turn Signal Switch Product Photo 1 of 4
  • Part Description
    Switch Assembly, Turn Signal & Headlamp Dimmer Windshield Wiper Washer
  • Manufacturer
    General Motors
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  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Buick
    Manufacturer Part Number12450066
    Part DescriptionTurn Signal Switch; Switch Assembly, Turn Signal & Headlamp Dimmer Windshield Wiper Washer
    Item Dimensions10.8 x 5.7 x 5.2 inches
    Item Weight4.20 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12450066
    WarrantyThis genuine GM part is guaranteed by GM's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    2004-2007 Buick Rainier6 Cyl 4.2L, 8 Cyl 5.3L4 DOOR
  • Customer Questions & Expert Answers

    Q:
    I'm wondering if this is complete and correct part for my vehicle.
    A:
    You can Select Your Vehicle to check if 12450066 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    How do you remove the Turn Signal Switch and hazard flasher multi-function switch for the 2007 GMC Sierra? Posted by Hasani R.
    A:
    Start by removing the steering wheel and upper and lower steering column covers. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Henry / Nov 15, 2025
    Q:
    How do you remove the Turn Signal Switch and hazard flasher multi-function switch for the 2007 Chevrolet Silverado? Posted by Gerhard W.
    A:
    Start by removing the steering wheel and upper and lower steering column covers. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jose / Nov 09, 2022

Genuine GM Part 12450066, the Right Choice

To ensure reliability, purchase GM part # 12450066 Turn Signal Switch. It is sometimes referred to as Buick Dimmer Switch, Buick Headlight Switch, Buick Turn Signal Switch, Buick Wiper Switch. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific Buick Rainier models.

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