Locking gas cap

I have a 2015 Tacoma V6 4x4 TRD sport with tow package. I tried to locate a locking gas cap for this but could not find one listed for the 2015. So I bought a Stant one that was listed for the 2014 same model. After having it on for a couple of days, I had the check engine light come on. After checking with the dealer, they suggested putting the original cap back on. After a couple of days, the error code went away. Does anyone know where I can get a locking gas cap that won't make my check engine light come on? With every new car having a locking gas lid, Toyota dropped the ball on this one, regardless of having anti-siphon features.

 

I had one CEL for my Stant cap in 6 years and it was because the gas cap wasn't turned 3 clicks