GM Service Manual Online
For 1990-2009 cars only

To operate this feature, press the desired window switch fully and the window will lower automatically. To stop the window, pull or press on the switch momentarily. Press the switch partway to lower the window a small amount.

Anytime battery power is lost or the rear zone module is replaced, the express-down feature will need to be relearned. To relearn the express-down feature, follow these steps:

  1. Turn the ignition to the ON position.
  2. Run all windows to the full up position.
  3. Hold each power window switch on the driver door to the full up position for 5 seconds.
  4. Turn OFF the ignition and remove the key.
  5. Lock the doors with the FOB.
  6. Unlock the doors with the FOB.
  7. Verify that the express-down feature is working by holding the unlock button on the FOB, all door windows should go down.