Surfbum

Hello Phil, I updated my map software last year on the Toyota link,I am now using map version 02-18-51 (2018-06-11)..Map update ID 1103-1610-1208-2259.I guess I have the premium version as I use the remote menu button on the center console to acces the Nav screen.

Yeh Geoff, This is the link..https://toyotamaps.online/map-updates >>current price is $79..(Current exchange rates mean its a bit more than the £55 that I paid) ..its all legit.Map updates are done twice a year so the new updates for 2019 were issued in October.Its all explained on the site what you need to do..

Yeh Geoff, This is the link..https://toyotamaps.online/map-updates >>current price is $79..(Current exchange rates mean its a bit more than the £55 that I paid) ..its all legit.Map updates are done twice a year so the new updates for 2019 were issued in October.Its all explained on the site what you need to do..

Hi Geoff, What does that firmware update relate to?.When I did my map update last year it included a firmware update as well but maybe that was just for the map section.I was not aware there was a firmware update for anything other than the nav system.Perhaps that update is only on the NX models and not the RX 450H.My rx has been serviced every year since new and I have never been quoted if I wanted the firmware updated.I did ask about the map update and Lexus Plymouth wanted about £280,so I did it myself from the Toyota site for £55.

check out www.toyotamaps.online for latest firmware updates on Toyota/Lexus vehicles

Hi Dan; Time to move on from the 400H...got an excellent trade in price plus protection pack thrown in from Lexus.Got to say I have really enjoyed owning the 400H apart from the battery issue; although for the last 4 yrs the solar charger has done its job and have not had any dead battery problems. Even when the battery is dead one can still open the doors using the key and not remote blipper..initially I was using a booster pack to fire up the engine when the battery was dead so carried that around under the drivers seat.Then started using the solar charger and never had to use the booster power pack again.

Hi Ja, You obviously haven't read all the other posts regarding the dead battery issues on the RX400H.Its a common fault due to the small battery and the drain down caused by the electronics security when the car security alarms are activated and the car not run for a week or two.Lexus are aware of it but do not have a fix other than to keep one happy by changing the batteries every time they get a call out.They cured the problem by installing a bigger battery on the RX450H. I have finally decided to change my '57 plate 400H in for a new 450H Advance this Saturday...no more solar charger sitting on the dashboard.....YES!!!

I had the same dead battery prob on my 2007 400H,I got lexus to permanently power up the socket on the floor and bought a £28 solar charger and leave it plugged into the socket when my car is parked up for vacations and have never had any more dead batteries.

Try Hastings Direct....I got fully comp,NCD protected,Legal cover etc,,,,£173..

Check www.cheaptoyotaparts.co.uk for the price on latest sat nav disks for RX400H

Phil, I have a 2007 400H and had the same battery dying problem right from brand new.Each time it happened I called Lexus and they changed the battery.Its a manufacturing fault and Lexus knew about it but had no 'fix' for it.I work away and my car was left for many days with-out being used and I would always find the battery dead on return to the uk. I finally got round the problem by getting my Plymouth lexus dealer to permantley live wire the power socket on the floor and plugging a solar power charger(Solar cells layed on top of dash) into it when the car was not being used.It continually trickle charges the battery. I have not had a dead battery since doing this. Its a poor excuse for a car with all the extras I ordered that cost over 50K at the time to keep the battery running but it works. I understand that on the new 450H they put a larger battery in thus getting round this problem. I hope they do the same with the new baby RX due out next year,,,lessons learned I hope. Derek

Its a SUNSEI SOLAR CHAGER 135..it has a built in diode to prevent reverse current.The Lexus electrician who installed mine to the floor socket by permanent wiring it,its safe as long as an inline fuse is installed also.You can purchase from www.sunseisolar.com..not expensive. Surfbum

Which kind of portable solar panel did you use? any brands or examples, or any specific Volts/Currents required for the RX400H? Surfbum

Have you tried a Lexus dealer?