Still true 14 years later.
My saga is, I always used the alarm fobs for entry and locking, and had discovered that the original keys only worked in the driver door and ignition.
About 8 years ago, I was working on the trailer wiring and discovered a magnetic hide-a-key containing a copy key attached to the receiver hitch stuff. I thought of a more clever hiding place, stuck it there, and promptly forgot where that was.
A couple years ago i misplaced the fob that worked better and one of the original keys.
The TVSS got progressively less stable and the fob i could find got less reliable.
Couple months ago i found that i couldn't open the driver door with the original key, After applying some WD40, i could unlock but not lock the driver door with the original key, but not the liftgate or passenger door. Figured out how to bypass the TVSS and figured that was a reasonable place to be.
Then the other night i had a moment of lucidity and remembered where i hid the spare.
Found it. It's a copy of a much less worn original key, with some more WD40 it unlocks and locks driver and passenger.
Then yesterday i realized that the thing about a liftgate lock barrel is that it's the one you can reorient so that gravity works in your favor, flipped it up and soaked it with wd40, and that's working now too.
All four barrels accepting this old copy leads me to believe that i probably have the original locks all around, so i am gonna see about getting keys cut to the code rather than copying the old copy.