Hey everyone..ive got a prettty weird thing going on here..
everytime i turn on the A/C the TPMS error comes up on the DIC saying to "service tpms" and the icon flashes on the dash. I went through the DIC and see that I keep losing readings on 2 tires. I dont understand how these two things can be related but it always happens! No other lights on and no codes found while scanning.

 

I had a dealer reflash to fix TPMS issue, dont think it was A/C related, but anythings possible. Its a separate computer for the TPMS and remote locks/starter which is more sensitive to voltage drops. Mine happened after a dead battery.
Or it could be your sensors going, but unlikely two at the exact same time. Mine are still fine, as are the used ones I picked up to put in my summer tires.

 

ya i find it really odd that both went out at the same time as the a/c is turned on..going to check battery tomorrow

 

If the sensors are out, the warning doesn't come up til about half hour of driving.