CADILLAC 20790381 Brake Light Avoidance Lamp Sts 3RD

( Manufacturer Part Number: 20790381 ), ( Type: Third Brake Light Assembly ), ( Features: Oe-certified ), ( Id: Ac79dd85-dde1-4778-80cc-b77e28b71c3f )

Review CADILLAC 3rd Brake Light Avoidance Lamp Sts fits 2011

The **Cadillac 20790381 3rd Brake Light Avoidance Lamp (STS)** is a precision-engineered, high-performance automotive lighting component designed exclusively for Cadillac vehicles, specifically tailored to the **STS model** for optimal functionality and aesthetic integration. This third brake light assembly is crafted with durability and reliability in mind, ensuring seamless operation while enhancing visibility and safety on the road. Engineered from high-quality, long-lasting materials, this brake light features a robust housing that resists environmental factors such as moisture, dust, and temperature fluctuations, guaranteeing consistent performance even in demanding conditions. The lamp incorporates a **clear polycarbonate lens**, which is both scratch-resistant and optically optimized to maximize light output, ensuring that your brake signal is clearly visible to following drivers in all lighting conditions. The mounting bracket is precision-machined to fit securely within the STS s rear panel, providing a snug, vibration-dampening installation that prevents rattling or misalignment over time. Whether navigating city traffic or cruising on the highway, this brake light maintains its clarity and effectiveness, contributing to a safer driving experience. Additionally, its sleek, factory-style design ensures a seamless blend with the vehicle s original trim, preserving the STS s refined appearance without compromising on performance. Ideal for both original equipment replacement and aftermarket upgrades, this brake light is a testament to Cadillac s commitment to quality and driver confidence.

### Pros and Cons of buying a Cadillac 20790381 3rd Brake Light Avoidance Lamp (STS)

1. **Compatibility** This part is specifically designed for the Cadillac STS, ensuring a proper fit without modifications. It is engineered to replace the factory third brake light, which helps maintain the vehicle s original appearance and functionality.

2. **Improved Visibility** The third brake light (often called a "tail brake light" or "rear center brake light") enhances visibility for drivers behind your vehicle, especially in heavy traffic or when braking hard. This can reduce the risk of rear-end collisions.

3. **OEM Quality** As an original equipment manufacturer (OEM) or high-quality aftermarket part, it is built to meet Cadillac s standards, ensuring durability and reliability. This minimizes the risk of early failure compared to low-quality generic replacements.

4. **Easy Installation** The part is designed for straightforward installation, typically requiring only basic tools. Many drivers or even inexperienced mechanics can replace it without professional help, saving labor costs.

5. **Avoidance of Common Issues** The original third brake light on some Cadillac STS models has been known to fail or flicker intermittently. Replacing it with this part can resolve these problems, ensuring consistent brake signal functionality.

6. **Maintenance of Resale Value** Keeping the vehicle s original components (or high-quality replacements) helps maintain its resale value, as buyers often prefer vehicles with complete, unmodified parts.

7. **Compatibility with Modern Systems** The part is likely designed to work seamlessly with the STS s electronic brake lighting system, including features like brake assist or adaptive cruise control, which rely on proper brake light signaling.

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1. **Cost** OEM or high-quality aftermarket parts like this one can be more expensive than generic or no-name alternatives. The price may range from $50 to $150 or more, depending on the source and whether labor is included.

2. **Potential for Counterfeit Parts** If purchasing from an untrusted seller (e.g., online marketplaces without verification), there is a risk of receiving a counterfeit or low-quality part that fails prematurely. Always buy from reputable dealers or authorized sellers.

3. **Limited Availability** Depending on the region, this specific part may not be readily available at local auto parts stores. Online retailers (e.g., RockAuto, Amazon, or Cadillac dealerships) may be the only reliable sources, which could add shipping time or costs.

4. **Installation Challenges** While the part is designed for easy installation, some drivers may encounter difficulties if they lack mechanical experience. Improper installation (e.g., loose wiring or misalignment) could lead to electrical issues or poor functionality.

5. **Warranty Considerations** If the vehicle is still under warranty, replacing the third brake light with an aftermarket part may void certain warranty coverage, depending on the manufacturer s policies. Always check with Cadillac or the dealership before proceeding.

6. **Aesthetic Concerns** Some owners may prefer aftermarket brake lights that offer additional features (e.g., LED technology, custom colors, or smart lighting). While this part maintains the original look, it does not provide those upgrades.

7. **Environmental Factors** Like any exterior light, the third brake light is exposed to weather, road debris, and UV damage. Over time, it may still require cleaning or eventual replacement, though this part is likely more durable than the original.

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The Cadillac 20790381 3rd Brake Light Avoidance Lamp (STS) is a practical and reliable replacement part for owners looking to restore or maintain their vehicle s brake lighting system. Its primary benefits compatibility, improved safety, and OEM-quality construction outweigh the minor drawbacks, such as cost and potential availability issues. For most drivers, the investment is justified by the part s role in enhancing visibility and preventing accidents.

However, if budget is a concern, it may be worth exploring high-quality aftermarket alternatives (e.g., from brands like Hella, Bosch, or ACDelco) that offer similar performance at a lower price. Always prioritize purchasing from trusted sources to avoid counterfeit parts.

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- You need an OEM-quality replacement for your Cadillac STS s third brake light.

- You value safety and want to ensure reliable brake signaling.

- You are comfortable with a straightforward installation or have access to professional help.

- You want to maintain the vehicle s original appearance and resale value.

- You are on a tight budget and can find a high-quality aftermarket part (e.g., LED or smart brake lights) that fits your needs.

- You are unsure about the part s authenticity and prefer to buy from a dealership or authorized seller.

- You are not confident in installing it yourself and need to factor in labor costs.

**Final Verdict:** For most Cadillac STS owners experiencing issues with their third brake light, this part is a sound choice. It balances quality, functionality, and compatibility, making it a recommended purchase for those prioritizing safety and reliability. Always verify the part s authenticity and compatibility before buying.

Details:

Vehicle Stock #: 0426012. Part Stock #. Airbag Notification. Search for more parts for CADILLAC STS.

Model: CADILLAC STS.

part #: 20790381 prices

• $75.99-$115.00

specifications lightinglam:

• for makes: Cadillac
• for years: 2011
• mpn: 20790381
• type: Third Brake Light Assembly
• features: Oe-certified
• id: Ac79dd85-dde1-4778-80cc-b77e28b71c3f

seller lightinglam:

• rating: 99.9%
• city: Stroudsburg, Pennsylvania
• # reviews: 2773

general lightinglam:

• Car Truck Parts Accessories > Lighting Lamps > Third Brake Light Assemblies
• condition: Used

payments lightinglam:

• credit card: Mastercard
• wallet: Paypal
• other

returns lightinglam:

• time: 30 Days
• paid by: Buyer
• policy: Returns Accepted

shipping lightinglam:

• service: Standard
• transit: 3-7 Days
• type: Fixed
• class: Standard
• cost: $0.00

offer lightinglam:

• quantity: 1
• best offers: True
• options: Ship-to-home
• sold: 0
• availability: In Stock
• started: April 14, 2026

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