Lately I've had the issue where my remote doesn't unlock the deck lid and passenger door - and occasionally, doesn't even unlock the driver's door. I swear I can see it trying, but it just doesn't seem to have quite enough "oomph" to get the lock up. After I get in and start the car, everything goes back to normal...

Have I read somewhere that the locks are manipulated by air pressure...?

If so, I'm guessing there is a leaky hose or storage tank somewhere. Any sage advice for me?