Entering Car With 12v battery disconnected

2011 Prius IV -- going on several months absence and will disconnect the 12V battery during the trip. It is a real pain to have to crawl over the seats to hook up the battery again. Question: If I leave the car unlocked in the first place when disconnecting the 12V battery, will I be able to open the rear hatch upon my return since it was not locked?

 

I had not thought it possible to power the car by jump starting it with the 12V battery disconnected. I wanted to hook a battery tender/float charger up to the jump start points in the engine compartment to keep the battery charged. But, the Toyota dealer service department told me that wouldn't work. So, I didn't think about jump starting it to get the rear hatch open. Hmmm. I'm hesitant to leave the hatch ajar -- I live in the tropics and I'd imagine geckos, ants, roaches, maybe centipedes would find their way inside the car.

 

I can always back the car into the carport so the front of the car is accessible. Why would I need to have a mechanic or dealer check the trouble codes after re-hooking up the 12v battery?

 

Well, I thought you did, bisco. On each of your posts, immediately below what you wrote is the text "...have the trouble codes checked after checking the 12v health..." It is text that is only in light gray, not sharp black text. It's not important -- sorry to bring it up. Just curious where it comes from and how it got in your message.

 

Thanks for the clarification...now that I know, it won't confuse me again.
When I disconnect the 12v battery, what all will need to be reset when I hook it back up again? radio station presets, for sure, but what else?

 

I would not have thought about the power window switches needing resetting. As for the trip A&B, I reset them to zero every time I get gas in the car. So, no loss for me on that account. Thanks for the idea though.