Will Trailer Connector Adapter w/ Lamp-Out Sensor Bypass Work With 2025 GMC Sierra 3500 Ultimate

Published 03/02/2025

Question:

I have a 2025 GMC Sierra 3500 ultimate and was wondering if the adapter 20142 will work on my truck, the description says it is for foreign vehicles Thanks

asked by: Jerry

Expert Reply:

Hello again Jerry; yes, the Trailer Connector Adapter w/ Lamp-Out Sensor Bypass # 20142 will work with your truck. It works with any vehicle that has a 7-way. Historically, European vehicles were the ones that had sensor issues with LED trailer lights. Computers and sensors on trucks like your Sierra have become more complex, and more trailers have LED lights, so it is more common to see an adapter like this used on domestic vehicles as well now.

expert reply by: Robin H