Review on 🚦 GM Genuine Parts D1539J Brake Light Switch: Reliable and Efficient for Enhanced Vehicle Safety by Matthew Evans

This switch has two sets of contacts, one set for brake lights and another set for cruise control off. I had an issue with the cruise control where the display on the steering wheel showed that the cruise control was on, but pressing the buttons to engage (coast) or re-engage (accelerate) didn't cause the cruise control to ratchet. The switch installs easily with a 10mm ratchet combination wrench and a flathead screwdriver. It took about 10 minutes to remove the old switch and install this one. There are some good videos on U-Tube on installation.