Originally Posted by 1Topp
The doors will lock automatically on vehicles with power door locks if all of the following conditions are met:
The manual may say one thing but what actually happens is frequently different.
I've played with seeing what it takes to get the doors to lock. I've sloooowly gotten up to speed, well beyond 15 mph, and they still didn't lock. It seems that if I press on the gas pedal a bit harder it triggers the locks as long as all the other conditions in the above list have been met.