Nope, the E70 in the U.S. now uses direct monitoring of the tire pressure with a sensor inside each wheel. Take a look at the valve caps on your tire stems.

I believe that the E70 for some other markets still uses the indirect, relative-speed-of-rotation method, since it is cheaper. You will see both systems are discussed in the Owner's Manual, but the U.S. models all use direct pressure sensing/RF transmission.

P.S. It starts on page 92 of the Owner's Manual, with the relative-rotation method being called "Flat Tire Monitor (FTM), and the direct-pressure-sensor method being called "Tire Pressure Monitor (TPM). The U.S. gets TPM, primarily as it is difficult to meet newer legal requirements in the U.S. using FTM.