rickm wrote:
what is auto-unlock? How does that work?
First auto-lock has to be enabled.
Then auto-unlock has to be enabled.
When you drive 15mph or more the doors auto-lock.
In a rig with an automatic trany;
When you come to a stop, put your rig in park and open the drivers door. All the doors and back hatch unlock. I have also heard of the doors unlocking when the key is turned off and removed.
In a rig with a Manual trany;
When you come to a stop, open the drivers door. All the doors and back hatch unlock.
From the manual:
Automatic Door Locks Programming
The Automatic Door Locks feature can be enabled or disabled as follows:
For vehicles equipped with a Electronic Vehicle Information Center (EVIC), refer to “Personal Settings (Customer Programmable Features)” under “Electronic Vehicle Information Center (EVIC)” in Section 4 of this manual for details.
For vehicles not equipped with the EVIC, perform the following procedure:
1. Close all doors and place the key in the ignition.
2. Cycle the ignition switch between LOCK and ON and then back to LOCK 4 times ending up in the LOCK position.
3. Depress the power door lock switch to lock the doors.
4. A single chime will indicate the completion of the programming.
5. Repeat these steps if you want to return this feature to its previous setting.
NOTE: Use the Automatic Door Locks feature in accordance with local laws.
Automatic Unlock Doors on Exit
The doors will unlock automatically on vehicles with power door locks if:
1. The Automatic Unlock Doors On Exit feature is enabled.
2. The transmission was in gear and the vehicle speed returned to 0 mph (0 km/h).
3. The transmission is in N (Neutral) or P (Park).
4. The driver door is opened.
5. The doors were not previously unlocked.
6. The vehicle speed is 0 mph (0 km/h).
Automatic Unlock Doors on Exit Programming
The Automatic Unlock Doors On Exit feature can be enabled or disabled as follows:
For vehicles equipped with a Electronic Vehicle Information Center (EVIC), refer to “Personal Settings (Customer Programmable Features)” under “Electronic Vehicle Information Center (EVIC)” in Section 4 of this manual for details.
For vehicles not equipped with the EVIC, perform the following procedure:
1. Close all doors and place the key in the ignition.
2. Cycle the ignition switch between LOCK and ON and then back to LOCK 4 times ending up in the LOCK position.
3. Depress the power door unlock switch to unlock the doors.
4. A single chime will indicate the completion of the programming.
5. Repeat these steps if you want to return this feature to its previous setting.
NOTE: Use the Automatic Unlock Doors On Exit feature in accordance with local laws.