I just bought a 2006 Lexus RX400h with 55,000 miles. I've noticed that when I start it the battery starts to run it but almost immediately the internal combustion motor takes over as I leave the garage. I tried slowly driving around our neighborhood at low speed--20 MPH--on battery alone but the internal combustion motor always takes over even at a continuous low speed. Recall BLD re the power module hasn't been done yet and I plan to take it to the dealer ASAP. This recall doesn't appear to be directly related to my problem. I'm concerned whether this problem is covered by the 80,000 or 96,000 hybrid component warranty. I'd appreciate any thoughts.