Hi All. I found this post after reading about the dangers of keyless entry on the BBC News website.
I have a 2010 IS250 and unfortunately the powersave mode doesn't work on the keyfob. So, I just went to Halfords to buy their own-brand RFID secure key pouch and tested it there and then in the car park and it was absolutely rubbish!! I was still able to unlock and lock the car from at least 0.5m away from the driver door so I took it straight back for a refund, which they wouldn't give me without demanding personal information and then telling me I won't get the money back for five days.