Hi, I just bought a brand new 2009 L570. The battery went dead the first week I got the car. It was replaced and then the second battery went dead. The dealer had it flat bedded into the dealership and did testing. They say I am not driving it enough. I use the car at least five times a week but Lexus is telling me that I am not driving it far enough for the alternator to charge the battery. Also, If I let the car sit for three days, the battery goes dead. The dealer has put on a plug in trickle charger for me to plug in my car every night but this sounds odd for a car that costs so much money to be 'plugged in'
Is anyone else having this problem? I checked the RX350 forum site and they are having problems with the batteries going dead also.