Make sure this part fits

Cadillac 20998955 Switch Assembly, Turn Signal & Headlamp Dimmer

2008-2015 Cadillac CTS

Customer Questions & Expert Answers (3)
20998955 GM Switch Assembly, Turn Signal & Headlamp Dimmer Product Photo 1 of 2
  • Part Description
    SWITCH, Headlamp Dimmer
  • Replaces
    15917907, 25952113, 25993190
  • Manufacturer
    General Motors
Make sure this part fits
$41.93 MSRP: $61.30
You Save: $19.37 (32%)
Currently Unavailable

Due to manufacturer supply shortage, this item isn't currently available for ordering.

  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Cadillac
    Manufacturer Part Number20998955
    Part DescriptionSWITCH, Headlamp Dimmer
    Item Dimensions9.5 x 3.2 x 3.0 inches
    Item Weight1.30 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces15917907, 25952113, 25993190
    ManufacturerGeneral Motors
    SKU20998955
    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
    2008-2015 Cadillac CTS6 Cyl 3.0L, 6 Cyl 3.6L, 8 Cyl 6.2L2 DOOR COUPE, 4 DOOR, 4 DOOR (RHD), 4 DOOR RHD, 4 DOOR SEDAN, 4 DOOR STATION WAGON, 4 DOOR WAGON, V 2 DOOR COUPE, V 4 DOOR, V 4 DOOR SEDAN, V 4 DOOR WAGON
  • Customer Questions & Expert Answers

    Q:
    I would like to confirm if this is the correct part number for my vehicle. Please advise. Thank you.
    A:
    You can Select Your Vehicle to check if 20998955 fits your vehicle.
    Posted and answered by GM Parts Specialist Henry
    Q:
    How is the hazard flasher switch different from the Dimmer Switch in the 2014 Cadillac CTS? Posted by Tsyden D.
    A:
    In 2008 and later models, the hazard flasher is part of the radio control assembly and must be replaced as an assembly. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Fernando / Dec 01, 2025
    Q:
    How do you remove the headlight/Turn Signal Switch on the 2008 Cadillac CTS? Posted by Reggie L.
    A:
    Remove the retaining screws from the top and side of the switch, then take it out of the switch housing. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Raul / Aug 20, 2022

Genuine GM Part 20998955, the Right Choice

To ensure reliability, purchase GM part # 20998955 Switch Assembly, Turn Signal & Headlamp Dimmer. It is sometimes referred to as Cadillac Dimmer Switch, Cadillac Headlight Switch, Cadillac Turn Signal Switch, Cadillac 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 Cadillac CTS models.

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