Had Walmart install 5 Hankook Dynapros on my Jeep last Thursday on different rims. 2 of the 5 sensors broke when transferring them to the new rims. They put in 2 new sensors. The "Low Pressure" warning and TPMS light was on when I picked it up, but it was almost 8:00 and I just wanted to get home, and I figured it would self learn, as I thought Jeeps did, if you drove 35MPH plus for 10+ mins. Took it on a drive about 80 miles each way, at a sustained 75-80 MPH and the low pressure warning and TPMS light is still on. For what it's worth, about a month ago I had the batteries tested in all the TPMS sensors and they all tested fine. No light was on prior to the new tires. I'm planning on taking it in first thing tomorrow, but wanted to arm myself with some ideas. Thanks!