Not something I have heard of before. You can download the car manual from hondas website. https://www.honda.co.uk/content/honda/en_gb/cars/owners/manuals-and-guides/honda-owners-manuals/_jcr_content/par1/textcolumnwithimagem_2131108407/textColumn/richtextdownload_71a/file.res/20%2c21%202EX%20JSS%2...

I have been packing stuff into my trunk yesterday and left all doors open for about 20mins. Suddenly I realised the car is not responding to both of my keys. All functions regard using the keys are not disabled. At first I though the 12v battery is dead so I connected the battery to a portable power...