Knebworth01

I've had the car 3 years and it's never missed a beat until this. I've had the battery checked and it's good. The alternator must be ok as the battery doesn't go flat and there would be a warning light for that. Driving me mad as Lexus want £3k for a new unit and I'm of the opinion anything can be fixed!

Hi, I have a problem with the Multimedia system on my GS. I went away for a week and left the GS on the drive. On my return the Nav, Reverse Cam & Radio were all dead - wouldnt turn on I checked all the fuses and all ok. After driving the car for about 45 mins or so it all comes alive and starts working. If you turn the car off then on again all works straight away, but when I park the car overnight it takes a good 45 min drive again the next day to wake up. I have checked the battery and it is good. Does anyone have any ideas as to what this problem could be as its driving me mad! Thanks