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Hi welcome, good to see a new face. just for our edification, would you tell us the garage you bought your new Lexus from so that we can avoid in the future .......... heavens, if they can't be bothered to do a simple pdi check .................... and tell you they have, well, that's just BAD Malc

agreed, you just are unlikely to get a Lexus dealer to attempt a battery pack repair - they will just want to replace the complete unit. They should be able to perform a recalibration though on the understanding that they cannot guarantee the outcome will be successful.

There is a TSB about it, the "battery pack deterioration" is NOT the same of battery total failure, and it happens only on some GS450h, caused but a normal ageing of battery pack; the solution in TSB is to reprogram the HV charging mode with an updated software. In my opinion the problem could be solved also by a total recalibration of battery cells that after some years of working could be at different charge levels, unluckily the machinery to make this are rare to find (at least here in Italy), and the procedure to recalibration needs at least 24 hours. The software update is made trought a .cuw calibration file and techstream program, but unluckily I have not succeded till now to find the file, as I have not access to Toyota-Lexus technical site (have to pay for it). The DTC is P0A7F -123 Hybrid battery pack deterioration, search in Google and you will find ;-) At the moment, I (hoping not temporarily) solved the problem resetting many parameters with techstream and making some cycles of charge-discharge up and downhill trying to rebalance the charge in cells on my GS450h my 2008. In pdf the TSB 575ed3e9.pdf

I totally agree with Malc. In fact, it might be an idea to get your man in Hove to give the car a really good inspection. The low oil worries me a bit. I find that, between services, I only need to put very small amounts of oil in.........3 litres of oil is an awful lot to add. What is the service history like?

Hi Guys i cant get over how many of you have already replied. I was a memeber of a couple of Lexus Soarer forums but never got this type of response. I have booked the car to go to a ex Lexus mechanic next week who can check out this fault and hopefully resolve...not nice to buy a new car with an error showing on the dash....funny thing is i didnt notice it on the test drive....i think i was so smitten with the car i didnt bother to look at the dashboard!. To be fair the garage did ask me to return the car but as i live in Hove and they are based in Harlow i asked if it was ok to see a local guy.... What disappointed me most with the car (dealership) is that it also had low oil/low washer fluid errors appearing on my journey back to Sussex. I was told the car had a pre delivery check and one would have thought the fluid levels would be the first thing to check!. When i eventually found a garage i couldnt get the oil cap off which again wasnt a good sign!. I asked a burly lorry driver to help and he eventually managed to undo cap. When i checked oil dip stick there was about a millimetre of oil showing....i added 2 lites and since have had another added and well as topped coolent fluids. 3 or the 5 tyre pressure were low and the spare was 20 PSI! I will be send the dealership a bill for the oil and the garage bill today....also they have agreed to pay the cost of the garage visit next week!. Not a great start with life with new car but hoping everything else will be ok.... Sorry to bore you, but thanks again for taking your time to respond and your interest..... Bob

Hope you get interest. You need to post in each mark forum to hit the full crowd as a lot of people only check their particular car forums. Stu