I 've raised it with my dealer and he replied saying for cars built after March 2021 it should no longer be a problem, I'm going to query this but does anyone know if anything new happened in March that changed the position? Like a design change or availability of new firmware. My initial query was to do with reports from the US regarding problems with 12v Battery being drained which I thought would probably also be valid in the UK as it's basically the same car, albeit Japanese built rather than US. Thanks for everyones comments, very useful. You need the 'tiniest' amount of charge to restore the battery to a level sufficient to get into Ready mode and then the traction battery can sort out the rest. If you are laying the car up for a while, put it on trickle charge if you can if you are going to abandon the car in a long stay car park for six weeks, invest in the smallest available jump-start pack. If you run the car for around 1 hour a week you'll never notice a problem if you leave the car unattended and idle for over a month you may well find that it won't start when you get back to it.ĭuring lockdown folk didn't get out much and encountered issues that, in their normal lives, they wouldn't have. Being small, it doesn't hold a massive amount of charge, but there again, it doesn't have that much to do. off) - in Ready mode the auxiliary Battery is charged via the traction Battery. The hybrid system incorporates a small 12v auxiliary Battery that keeps necessary electronic systems alive while the car is not in Ready mode (i.e. It's a minor issue rather than a real problem, but something to be aware of. I also understand it can happen on a more random basis not just after a long period of inactivity. I’d appreciate it if anyone can tell he how serious a problem this is and whether Toyota have cured it and if not why. In normal times ,which I hope will return soon ,we travel to see our children overseas and the last thing I want is to get back to the airport car park after a long flight to find the car battery flat. I’ve been concerned over the past days as I’ve found a lot of examples of problems with the 12v battery going flat. I’ve ordered an Excel FWD and expecting delivery in October.
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