Yaris Hybrid not starting

[Ashey]

My wifes Yaris Hybid 2015 model occasionally wont start, doors open ok but when you press the power button nothing happens, just like a complete flat Battery, however if you keep trying it eventually starts, the touchscreen display shows what looks like a screen and along the bottom is a line that looks like its rebooting itself any ideas thanks d

[FROSTYBALLS]

Topic title modified to reflect subject.

[flash22]

That is the radio fully rebooting, the 12v Battery under the back seat needs replacing as it's on the borderline and has lost its capacity, It is an AGM type around £120-130 from the dealers (ask for a discount) Replace it with the correct Battery don't cheap out

Info from a previous thread

Quote

Toyota Part number

28800-21181 (Yuasa S34B20R) R is right-hand negative

Just double-checked this in the EPC 04/2012 - 07/2020

Alternate Part Number 28800-YZZPC