Prius beeps and slowly dies

Hello! I am another newbie to Prius chat. I own a 2009 Prius and have had occasional issues with the car not starting in cold weather and have had to jump start it a few times. Fortunately that was successful. Today I noticed a new problem. In the past we have had problems with the car making a beeping noise, and the car with key symbol would blink. I have ignored that issue as it only lasted a short time. Today the car was beeping and when pushing the start button the car turned on but the dash lit up with the red triangle and exclamation point. We have had this happen before and would press the parking brake, then release it, push power button and it would shut off and we would restart without problems. Today the right headlamp went out followed by the left one about 30 seconds later. The fuel indicator began blinking as well as the drive/park indicator on the far left of the dash. The car eventually went dead although had very little light for overhead and glove box lights. The brake lights also worked. We have 125,000 miles on it with the original battery. Does this mean the battery finally went. If so how will we be able get the car out of the garage? Hope I can get some help. Love the gas money this car has saved us.

 

I have a volt meter, but old, that does not have a 12 v option. Don't know if that would still work? See photo. How do I access the diagnostic screen if the display screen does not light up? Is there a brand of 12v battery that is recommended? From previous posts looks like I should be able to buy one from local auto parts store.

 

Yes. See reply to Wil