Herbie

In a word, no. As I said above, it makes absolutely no difference whatsoever to the electricity whether it goes directly to the negative battery terminal or to a bolt head a few inches away. As long as there is a metallic conductive path, it will get to that negative battery terminal.

These may be of help:

http://lexus.co.uk or http://google.co.uk

Nope, again Linas, that's wrong. The negative battery terminal is clamped directly to the body anyway, so in effect the whole body and every screw, nut and bolt become the negative battery terminal. What possible difference - electrically speaking - can a few inches of steel/aluminium/whatever make? The answer is, none.

Sorry Linas but that's wrong. The only reason for the advice to use any unpainted part of the body/screw/nut is purely for safety reasons, not electrical reasons. A charging/charged battery can release hydrogen gas, which can be explosive if ignited. If the negative battery terminal is used and a spark is created as you take the croc clip off it, it could* cause an explosion - this is the reason to use any nut/bolt/screw - so that it's far enough away from the gas that there's no risk of explosion. It makes not one iota of difference electrically, and it doesn't matter in the slightest where the negative croc clip is connected, from an electrical point of view. *In more than 45 years of spannering, driving, and generally messing around with cars, I have never personally experienced an explosion, nor have any of my friends, family or workmates and when asked, it was discovered that all of us just connect to the negative battery terminal. Not only does there have to be the gas and a spark, but it also has to be present in the correct proportions for an explosion to occur.

All it was, I forgot what I was going to say

U2 are a rock band and they are two songs from The Joshua Tree album. I forgot that not everyone will know who they are

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The alarm has it's own back-up battery but of course, if it's left too long then even that will go flat too.

I just don't get this. What could be more enjoyable than driving it every day? Just drive it until it dies or just gets too tired. That way, you'll have had the enjoyment., not someone else.

It's a car. Just use it as a car is meant to be used. There's only me and the wife here and she doesn't drive, so no need for a second car. Consequently our 2018 RX450h gets used daily for everything; supermarket runs, tip runs, pleasure runs and full-on road trips to Czech Republic, Poland, Hungary and so on. People should be loved and things should be used. Having said that, I do love my RX and I would be sad and upset if it got pranged in a car park or whatever, but I never lose sight of it being just a car, or a tool to do things.

I have a Tacklife T8 that I got from Amazon although they now say it's currently unavailable. I think this model may have been superseded by a later model.

Probably not. You can sort of work it out approximately though. Even in the middle of the night when everyone's asleep there's still a draw on the battery for the clock, alarm, radio presets, memory seats and so on. This is roughly around 50mA or 0.05A. Have a look at the capacity of your battery - it'll be labelled as xxAh. Just as an example, we'll say that it's 50Ah, which means it can supply 50A for one hour, or 25A for two hours and so on. We'll also assume that it's brand new and fully charged (which yours almost certainly won't be). 50Ah / 0.05A = 1,000 hours or 41.66 days, or 5.9 weeks - and that is to go from brand new fully charged to fully discharged. However, remember that for the purposes of starting the car, the battery will be useless for that well before it's fully discharged, so you won't get all 1,000 hours or 5.9 weeks that a 50Ah battery would give you. You may just be lucky but....

Hopefully that'll solve the problem Colin - and don't put any more lube in there

I appreciate the reasons why you don't want to use your phone as a wifi hotspot, but it's worth mentioning an app called MacroDroid. I currently use Sky as my mobile phone provider and any unused data from one month rolls over to use in the next month. I'm not sure if there's any limit on the number of 'rollovers' but I can say that I currently have 60GB of data allowance in my 'data piggybank', which is why I'm using my phone as the wifi hotspot for my Grom Vline. As you'll see from the screenshot below, I created two macros in MacroDroid. The first one detects when my phone connects with the OEM Lexus Bluetooth, which then triggers the phone's wifi hotspot to switch on. The second one detects when I switch the car off and the connection to Lexus Bluetooth drops, which then triggers the wifi hotspot to switch off as well. It works perfectly and MacroDroid is very versatile and can be used to automate lots of things.

Why bother? OK, I know it should have a router and it hasn't so that's not good. But even if it did, it would be locked to one network and you'd be paying well over the odds for a small data allowance, so look at it as a narrow escape On the other hand, you could buy your own router (link just FYI, not actually recommending any) which would be unlocked to any network. You could then get a data only SIM something like this one (again, link only FYI) that currently works out at 10GB data per month for the equivalent of £4.17 per month. Because the router is unlocked, once that SIM expires you can then look around for some other deal, even on a different network.

I think you could be right - or it's just one of those weird coincidences that happen occasionally. P3190 means low engine power and the other two are self-explanatory. The good news is that, despite the dire warning about the hybrid system, it's quite unlikely to be that. I haven't got a service manual for the LS600h but the RX450h manual has about 10 pages of stuff relating to P0172 and P0175, the first one of which is below showing possible problem areas, starting with the most likely. The first thing I'd do would be to clean the mass airflow sensor. It does sound like it may already be sorting itself out so fingers crossed for you mate.

I think you need to go round to each door and use the individual switches to take the window(s) all the way down and hold for a few seconds, then all the way up and hold for a few seconds. If I'm right, you'll then be able to control them all from the drivers door. EDIT - just re-read your post and it may be the 'Master' switch on the drivers door that's been pressed by accident?

Sadly, it doesn't. Mine didn't even reduce by a tenner. I used to do computer repairs/printer setups/broadband setups and so on and I used to think that business cover was to protect my tools and/or any equipment I was transporting. I was completely shocked to find that all business cover does is to cover you for multiple journeys to places of work. Travel to an office or single place of work is under 'Social, Domestic and Pleasure' as it used to be called; travel to, say, three different houses to sort out their computers and that's where business cover comes in. Retirement taking away the need for multiple journeys doesn't bring the premiums down by any appreciable sum at all.

I understand and agree with your engineering statement Phil but I don't think it's the problem. I would imagine that to throw either an engine code or an emissions code, not bring up a hybrid system message. Whatever it is, I hope it's not a very expensive fix for Colin.

I see what you do for a living Linas but I have to take issue with your assessment and leap to the defence of Xiaomi. In our close family we have five Xiaomi phones and never had a problem with doing anything on any of them. All work with the respective banking apps and all work with Android Auto. They are all stable, all audio is clear, they all take great photos and so on. My point is, there really is no need whatsoever to pay huge amounts of money on big name phones these days. The low-mid range phones have really come on in leaps and bounds and I think it's only 'brand snobbery' that keeps the big names at the top. Having said all that, an iPhone is an iPhone and that's it. Given the sheer number of Android makes and models out there, compatibility issues must be an absolute nightmare to solve.

She certainly is very, very nice.

No kids so never used a child lock but I never thought to check; it may still be on from the previous owners. I discovered the flat battery in the morning so it had been parked on the driveway overnight and yes, I always deadlock it (if that's what two presses of the lock button on the fob does).

No, the cigarette lighter is only energised when the ignition is switched on, so there's no path back to the battery if the ignition is off.