2017 electrical issues

Good morning. We joined this group because our Tundra has some electrical issues that Toyota couldn’t fix or even acknowledge there is an issue. We were towing a 2017 cargo trailer and all of a sudden the tow lights load indicator light started cutting out all spastic like and we cannot fix it. We thought we fixed it and again as we were towing the panel starting going haywire. We haven’t towed in a year and just last week it happened again…just backing out of driveway not towing anything. Truck has 45,000 miles and we already had to replace alternator last month! Probably caused by the electrical issue. Any ideas of fixing problem would be greatly appreciated.

 

First, Welcome from LA (Lower Alabama)!

This question would likely get a lot more response from the techs in the Ask the Toyota Mechanic forum:
https://www.tundras.com/threads/ask-the-toyota-mechanic.2404/

 

Thank you. I will look into that now.

 

Welcome from NY.

 

Thank you from Washington State