There are multiple reports of issues where it appears to be overdrawing power, which causes the BCM to temporarily shut off the overdrawn lighting functions. And no, BLIS sensors in the bumper don't magically change the OEM tail lights. The drivetrain doesn't magically change the tail light wattage either, but OPT7 thinks so.
There is also a huge (~1s) delay between the tail lights and the LED bar for turn and brake shown here.
I installed this light using the easy connect harness from opt7. The light never consistently worked right, so i returned it. The installation was relatively simple and I'm confident I installed everything correctly. It's a cool product, so I'm bummed it never worked out.