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Hello, thanks for posting
Have you checked the 12 volt auxiliary battery in the trunk? it may discharged below 12 volts. try to jump start with another car and if it starts replace the 12 volt battery with one that is made for hybrid applications.
It can be jump started from under the hood, there is an access point in the fuse box, it has a red cover on it with a plus sign, attach the positive cable there.
The 12 volt battery is in the trunk on the right side in the fender well, the access point under the hood is directly connected to the battery, it's easier to jump the battery under the hood than to remove the spare tire cover and tool tray in the trunk.