Recommended Adapter to Trick the Vehicle Computer Into Thinking a Trailer is Connected
Updated 01/02/2026 | Published 12/25/2025
Products Featured in This Question
Question:
Looking for a dummy 7 pin trailer connector that tricks my 2026 Silverado 1500 into thinking a trailer is connected to be able to view side camera when a turn signal is activated... or a similar solution.
asked by: Jerry W
Expert Reply:
Hey Jerry, congrats on the new truck. That sounds like a similar situation to what we have to do with European cars to get the collision alarms to stop going off when using a bike rack. The 7-Way to 4-Way/5-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs item # C35FR is what's recommended for these situations.
The Curt Adapter item # C35FR provides just enough of a return signal to trick the sensors into thinking a trailer is actually connected. It'll plug directly into your factory 7-way and if you ever need a 5-way adapter you'll have one.
If you have any additional questions, go ahead and click on the box that says Reply to Jerred H and I'll be happy to answer them.
(click to enlarge)
Rkm
1/1/2026
We got the 7 way to 7 way because we were having multiple warnings pop up on our 2024 F350 when pulling our 5th wheel, including "NO TRAILER BRAKES" when the brakes would clearly engage, among many other warnings... this has eliminated all of these issues. Hope this helps
Jim M.
1/2/2026
I have a 2024 GMC Sierra 3500 HD DRW. This connector works perfectly with my DRV fifth wheel. The turn signal would flash way too quickly without it. I recommend this if you have similar problems.
Product Page this Question was Asked From
Trailer Connector Adapter w/ Lamp-Out Sensor Bypass - 7-Way RV to 7-Way RV - Vehicle End
- Custom Fit Vehicle Wiring
- Wiring Adapters
- Universal Fit
- 7 Blade to 7 Blade
- Plug Only
- Tow Ready
more information >
Continue Researching
- Shop: Trailer Wiring
- Article: Trailer Wiring Diagrams
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: Holiday 2025 | Staff Picks for Real-Life Adventures
- Q&A: How Many Load Resistors Do I Need To Install Towing LED Boat Trailer With 2024 GMC 3500?
- Q&A: Troubleshooting Hyper Flashing Trailer Lights on Mercedes-Benz Sprinter Van
- Q&A: Troubleshooting LED Trailer Lights Causing Error Code On 2021 GMC Sierra Denali 2500
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: How to Make an Adapter to Go from Semi Truck 7-Way Round to RV Style 7-Way Blade on Trailer
- Q&A: Load Resistor For 2023 Ford F150 Tremor Towing Trailer With LED Lights
- Article: 5 Things to Know About Weight Distribution Hitches
- Q&A: Will The Roadmaster Universal Braking Monitor Allow Me To Monitor My Invisibrake System?
- Article: 2005-Current Volkswagen Touareg, Audi, or Porsche Cayenne
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Article: How to Install E-Track in 3 Easy Steps
Mike A.
12/30/2025
This worked for me for awhile. Best guess is a resistor inside burned out. I was towing a mini-cooper with a camoper and wound up getting rooftop incandescents en route. Bear in mind this was a 75 day 10,000 mile trip. I could not predict how it will work in the instant application because there's no load on it. For the money its worth a shot-- good luck!