auto door locks

first problem with my 07 NBS Silverado:
 
As I was pulling out of my driveway this morning, I hit a very slight bump in the road. All of the door locks "jumped" to the unlock position. I can lock them with the doorlock button on the door panel, but they will no longer "auto lock". The remote entry still works also. I have tried resetting using the dash computer settings, but it will still not work.
 
I tried doing a search on this forum, but noone else seems to have experienced this problem. In fact, it seems like several people are actually looking for a way to turn the "auto lock" feature off.
 
One more thing...the door locks will still "auto unlock" when the transmission is shifted into park.
 
Is there something I could try, or is it back to the dealership? The truck is still fairly new, as I only have about 700 miles on it.
 
Thanks,
-HT

HT,
This is not a common problem, have the dealer look at it on your next service visit, it most likely can be remedied by reprogramming the Driver and Passenger Door Modules.

Thanks for the reply.
 
I'll take it by the dealership in the morning, and have them take a look. If I can get them to tell me what happened, I'll try and post it on the forum.