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  3. CADILLAC 1999391

CADILLAC 1999391 Sts Turn Signal Combination Switch 3.6L

fits make: Cadillac. year: 2005–2011.

1999391 Cadillac Oem 2005-2011 Sts 3.6l Turn Signal Combination Switch

( Manufacturer Part Number: 1999391 ), ( Part Type: Turn Switch Signal ), ( To Control: Headlight, Turn Signal ), ( Year: 2005 2006 2007 2008 2009 2010 2011 ), ( Color: Black ), ( Country/region Of Manufacture: United States ), ( Placement On Vehicle: Steering Column )

Review CADILLAC 1999 391 Oem Sts 3.6l Turn Signal Combination Switch fits 2005–2011

Cadillac 1999391 Turn Signal Combination Switch for 2005-2011 STS 3.6L

The Cadillac 1999391 Turn Signal Combination Switch is an essential component of the electrical system in your 2005-2011 Cadillac STS 3.6L vehicle. This switch plays a crucial role in activating your vehicle's turn signals and other related functions.

This switch is specifically designed for use in Cadillac STS models manufactured between 2005 and 2011, equipped with the 3.6L engine. The switch housing is engineered from high-quality materials, ensuring durability and resistance to wear and tear.

The Cadillac 1999391 Turn Signal Combination Switch features integrated turn signal indicators that illuminate when the corresponding turn signal is activated. These indicators are placed strategically to ensure they are easily visible to other drivers, enhancing safety on the road.

Additionally, this switch incorporates a hazard warning function. When activated, the hazard warning lights on the front and rear of the vehicle will flash rapidly, alerting other drivers of potential danger or an emergency situation.

Installation of the Cadillac 1999391 Turn Signal Combination Switch is relatively straightforward, making it an excellent choice for DIY enthusiasts. However, if you prefer to have a professional handle the installation, your local Cadillac dealership or a certified mechanic can assist you.

This Cadillac turn signal switch is a genuine OEM (Original Equipment Manufacturer) part, ensuring a perfect fit and function. By using a genuine OEM part, you can maintain the integrity and performance of your vehicle's electrical system.

In conclusion, the Cadillac 1999391 Turn Signal Combination Switch is an essential component for your 2005-2011 Cadillac STS 3.6L. Its durable construction, integrated turn signal indicators, hazard warning function, and easy installation make it an excellent choice for maintaining the safety and functionality of your vehicle.

Pros and Cons of Buying a Cadillac STS 3.6L Turn Signal Combination Switch (1999-2005)

1. Pros:

a. Original Equipment: This part is an original equipment (OE) replacement, ensuring a perfect fit and function for your Cadillac STS.

b. Improved Performance: A faulty turn signal switch can cause erratic blinking or failure of the turn signals. Replacing it with a new one can restore the expected performance.

c. Enhanced Safety: Properly functioning turn signals are crucial for your safety and the safety of other road users.

d. Cost-Effective: Despite being an OE part, the cost of a turn signal combination switch is relatively affordable compared to other repairs or parts.

2. Cons:

a. Availability: These parts may not be readily available at local auto parts stores and might require ordering online or contacting a dealership.

b. Installation Complexity: Installing the turn signal switch may require some mechanical knowledge and skill, especially if you're not comfortable working with electrical components.

c. Cost of Labor: If you choose to have the part installed at a professional shop, the labor costs could add to the overall price.

Conclusion:

The decision to buy a Cadillac STS 3.6L Turn Signal Combination Switch (1999-2005) depends on your personal preferences, skills, and resources. If you're comfortable performing the installation yourself or you have a trusted mechanic, purchasing the part could save you time and money in the long run. However, if you lack the necessary skills or resources, it might be worth considering the cost of professional installation and labor. Ultimately, investing in a replacement part can restore the functionality and safety of your vehicle's turn signals, making it a worthwhile investment for your Cadillac STS.

Details:

Part May have light marks or scratches-Please view all photos carefully. Stock: 250711. Buyer to check all parts for fitment their vehicle before purchasing. Vehicle Info.

Engine: 3.6L. Tell us how we did. TESTED OEM Part is in good visual and working condition. All parts are tested when pulled from the vehicles.

Make: Cadillac. Mileage: 106,596. Vehicle Color: Crystal Red.

part #: 1999391 prices

  • $17.50-$45.00

specifications inswico:

  • for makes: Cadillac
  • for years: 2005-2011
  • mpn: 1999391
  • part type: Turn Switch Signal
  • to control: Headlight, Turn Signal
  • year: 2005 2006 2007 2008 2009 2010 2011
  • color: Black
  • country/region of manufacture: United States
  • placement on vehicle: Steering Column

payments inswico:

  • wallet: Apple-pay
  • credit card: Visa
  • other

general inswico:

  • condition: Used
  • Car Truck Parts Accessories > Interior Parts Accessories > Switches Controls

seller inswico:

  • city: Kansas City, Missouri
  • # reviews: 3377
  • rating: 99.2%

offer inswico:

  • availability: In Stock
  • sold: 0
  • quantity: 1
  • started: July 25, 2025
  • options: Ship-to-home

shipping inswico:

  • cost: $6.95
  • transit: 4-8 Days
  • class: Standard
  • service: Standard
  • type: Fixed

returns inswico:

  • policy: Returns Accepted
  • time: 30 Days
  • paid by: Seller
for makes: cadillac, for years: 2005-2011, part type: turn switch signal, to control: headlight, turn signal, year: 2005 2006 2007 2008 2009 2010 2011, country/region of manufacture: united states, placement on vehicle: steering column,
category: auto parts > car truck parts accessories > interior parts accessories > switches controls, color: black, sku: 16767500043365791,
Cadillac 1999391 Is Similar To:
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5 offers $17.50–$45.00 USD
  • Used. Offer #1 priced at $30.00 + $0.00 shipping estimate = $30.00* total. MANUFACTURED DATE: 06/2005. MODEL: Cadillac XLR.FREE SHIPPING
  • Used. Offer #2 priced at $17.50 + $11.35 shipping estimate = $28.85* total. Works fine Parting out the 07 Cadillac Sts it came from due to a bad engine more parts available pms open.+$11.35 shipping
  • Used. Offer #3 priced at $45.00 + $0.00 shipping estimate = $45.00* total. FREE SHIPPING
  • Used. Offer #4 priced at $28.00 + $0.00 shipping estimate = $28.00* total. All of the parts are tested either before or after removal from the vehicle As a result of itbeing a used part, the item may show light scuffs, scratches, or other imperfections.FREE SHIPPING
  • New. Offer #5 priced at $59.99 + $0.00 shipping estimate = $59.99* total. FREE SHIPPING

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