Sara T

Thanks for the info. Will be interesting what Lexus come back next week with regarding the Battery & if they will replace under the warranty...... I wont hold my  breathe!!!

Thanks for the advice, it does appear to be more of a problem with the Battery. We spoke to Lexus who are sending a mechanic over to re start it and take it in to investigate. 

Thanks for the info. Our trickle charger is a fast/slow, 6v 12 v DC 4A ,so hopefully it will do the trick once connected. Will follow your advice to release the door via the cabin & report back.

Thanks for the reply. Yes we ve tried via that method but the trickle didn't hold. The AA guy said it must be losing ampage doing it through the front plus the theft alarm set off during the night whilst connected to the trickle charger. He advised connecting to the Battery from the boot space.... but we re unable to unlock the boot without power. 

Looks like another call out for the  AA to re start it before going on a "longer" journey to Lexus to have its annual service! 

Flat Battery on 2020 UX250h.

I cant find a way to open the power back door to enable me to use a trickle charger on the flat Battery. I've looked for the solution in the  car manual on line but cant find the answer. Any suggestions?