My 2010 Honda Civic quit starting today. For the past week I have heard it starting up slower than usual. What would usually be an instant startup took 2-3 seconds. Today when I attempted to start it up, I hear it turn over but it won't fully start. Other than the issue starting up, I haven't had any noticeable problems driving.
I suspect it may be a dead/dying battery. I can leave it in Start (II) and see lights on the dash, and the A/C powers on, but I noticed the radio says "Enter Code". Since the radio was working 2 days ago, I assume it ran out of power at some point. When I go to Ignition (III) I can hear it cranking but it gets noticeably weaker the longer I let it turn over. I stopped attempting to start it after a couple of tries.
Is it most likely a battery problem? Can I get a jump and take it to a shop?