My Mom purchased a new 2011 Lexus RX350 last spring. The dealer installed a remote starter at the time of purchase (we live in Alaska). We've had a continuing problem with the battery going dead if the car has not been driven for a period of time (like 4 days). When she does drive it, it is for short trips (3 miles round trip to work). The original battery was replaced in fall with a heavy duty one, but the problem continues. Its been to the Lexas dealer (130 miles away) several times, but they claim everything is within the tolences and "there is no problem". They did note that the remote starter was drawing more than it was suppose to and reinstalled it. Their finding was that she was not driving it enough and recommened a battery tender, which has been installed. That works as long as she plugs it in daily. However, if a plug in is not available (like at the airport, hospital or if she is visiting) the battery goes dead after 4 days (even after it has been driven 100 miles).
This does not sound right to us, but the Lexus service department has no clue and claims there is nothing in the service bulletins about this problem.
We don't beleive this is what to expect from Lexus. We are about ready to give it back and get a different brand. Any idea's?