GM Genuine Parts D1556J Brake Light Switch (20913529) | OE Replacement

Overview

GM Genuine Parts D1556J Brake Light Switch is designed to integrate with your vehicle’s electrical system, ensuring the brake lights illuminate when you apply the brakes. As a true GM OE part, it reflects the same standards used during original production and vehicle validation, offering a dependable signal path in everyday driving.

Key Benefits

• Engineered to work with vehicle electronics to help optimize signaling and electrical performance
• GM-recommended replacement for your GM vehicle’s original factory component
• Quality, reliability, and durability associated with GM OE parts
• Manufactured to GM OE specification for precise fit, form, and function

Real-World Use

In daily use, the switch activates the brake lamps as soon as you press the pedal, contributing to clear signaling on the road. Built to withstand routine road conditions, it supports consistent brake-light operation and avoids intermittent signals that can distract other drivers.

What to Expect

Designed as an OE replacement, this part aligns with the original GM component and is backed by General Motors. It’s helpful for those who value a straightforward, reliable signal path from the brake system. For best results, verify compatibility with your vehicle model and production year.

Compatibility and Fit

GM Genuine Parts are the vetted choice for many GM vehicles, with part number 20913529 commonly referenced for compatibility. Always cross-check with your vehicle’s service data or GM parts catalog to confirm fitment before purchase.

At-a-Glance

• OE-grade reliability and durability
• Seamless electrical integration with brake signaling
• Supported by GM engineering and validation processes