Originally Posted by tmoore

Dear Larserso,
I had never noticed any battery problems. The mechanic said he found several "low voltage faults" when he checked what I assume is some computer-generated list of errors that the car's diagnostics identify. And it was the original battery, about 6 years old, so I thought it was worthwhile to replace if could have been part of the key problem.

But it wasn't. Replacing the battery and the diversity antenna only solved my remote locking problem for about two days. Then the system failed again. My car is back in the shop right now for another try at finding the problem. I'll post another message when I know more.