Hi there,
There is a revised computer program for the PCM, which controls this diagnostic.
You can reset it yourself, if you wish.
Basically, clear your DIC, and then while holding the #4 button, push #1 button 5 times, and then release.
You will see /manual diagnostics/ displayed on the DIC. Then, 10-PCM will appear, with a number of codes. When you see this, push and hold reset, until you see no codes.
This should put you back on track.
As for the warranty, yes, the recalibration should take care of the condition from reoccuring.
Allthebest, c4c5