Ok...so I have a question on this. My wife just got a 2020 Blazer that has this functionality. But I'm wondering if it's working correctly. If I'm on the level and just cruising with s slight push on the accelerator, it goes into V4 mode. But if I take my foot off the gas and coast, like going downhill, it switches back to V6. Is this right? It would seem to me that if you're not putting any demand on the engine (while coasting) you should be in V4 mode.