Was the Extended Dry option selected?

If the door is not automatically opening at the end of the cycle, ensure the option was selected. 

Was it turned off in the settings? 

The door-opening system can be turned on or off in the sub-menu (on certain models).  To access the sub-menu:

1. Press and hold the “Hi Temp” button for 5 seconds until “Hi Temp” and “Dry” lights turn on.
2. Press the “Start/Resume” button within 2 seconds. If you do not press Start within 2 seconds, the display will turn off, and you will need to start over at step 1. 
   1. For Models with a Display, an “A” will show in the display to indicate Rinse Aid Level.
   2. For Non-display models, the “Tough or Cookware” light will turn on to indicate Rinse Aid Level.
3. Press the “Cycle” button or “Normal” button (depending on model) to move to the Door category.
4. Press the “Start/Resume” button to select the feature and enter the sub-menu. The display will change to show the current setting of the feature.  
5. Press the “Cycle” button or the “Normal” button (depending on the model) to change the value of the feature setting.  If "o1" is displayed, the feature is turned on; if "o0" is displayed, the feature is turned off. 
6. Press the “Start/Resume” button to confirm the new selection. The feature setting will not be changed until the “Start/Resume” button is pressed. The dishwasher will return to the Off state when the Start button is pressed.