I was just in the dealership to have my window seals replaced (long story but this was my second visit for the same issue). I'm just noticing now that they also did a recall -- K433 -- Heated Oxygen Sensors replacement.

The part numbers noted on the work order are:

2 x T2R10752 Sensor -- Oxygen

I've done some searches on this forum (and others). I see that some had issues with fault codes coming up on the 2014-15 models related to oxygen sensors but nothing about this particular TSB.

Curious of others have had this K433 TSB performed and what replacing these sensors would have achieved?

 

just appeared within the past couple weeks on topix.

 

I had two different oxygen sensor campaigns done. No noticeable difference with either.

 

The K signifies it was a recall. Must have been a batch of O2 sensors possibly having some performance issues or manufacturing issue. The recall means that it will be VIN range specific, so only certain VIN's are affected. If a recall comes out, the next time your vehicle goes in for service, the Service Advisor checks this so the recall can be performed. Since I am in NZ now, some recalls I'm not able to see, but we had one down here with K309 which was just a software update of the PCM in regards to the 02 sensors. Others may have had fault codes, but didn't fall in the VIN range for the Recall. I have seen a few of the 02 sensors come up, its usually the 3rd one, furthest from engine as these engines have 6 02 sensors.