For your 2015 Chevy SS with tire size 275/35-19 there's only one tire chain set we offer I would recommend due to the limited clearances your vehicle is going to have and the fact you'll most likely want to keep our wheels as nice as possible. For that you'd want the Konig K-Summit Chains part # TH02230K44 which due to how they install basically do not require any clearance since they do not drape over the inner sidewall. These also won't contact your wheels either so there wouldn't be... view full answer...
The Rhino Rack Roof Rack part numbers # RRVA126B-2, # RRRLKVA and # DK134 is a confirmed fit for the roof of your 2014 Chevy SS. It will work great for carrying 2 kayaks. Then for a rack for each of your kayaks we have the part # TH834 which would work well. view full answer...
The Curt Class I Trailer Hitch Receiver # C11138 mentioned in your question is a confirmed fit for the 2017 Chevrolet SS. This Class I, 1-1/4" x 1-1/4" receiver has a tongue weight capacity of 200 pounds and gross trailer weight capacity of 2,000 pounds. No drilling will be required for installation but keep in mind that the exhaust will need to be temporarily lowered.
I have attached the installation details for your review.
I have also included a couple of links that take you to our... view full answer...
Try unplugging and replugging in the connector on the right side. Sounds like an intermittent connection there that's preventing consistent contact and function. Next thing is try cleaning the pins of your trailer wiring connector. A lot of time corrosion there will cause an intermittent connection/function as well. I attached a help article on troubleshooting trailer wiring for you to check out as well. view full answer...