Manual Windows; Power Windows - GMC 2003 GMT560 T-Series Owner's Manual

Manual Windows

Turn the hand crank on each door to raise or lower the
window.

Power Windows

If your vehicle has this feature, the passenger power
window switches are located on each door.
Driver Side Passenger Side
Push the switch down to lower the passenger power
window and pull the switch up to raise it. The driver's
door also has a LOCK button. When the LOCK button is
pressed down, the passenger's window will not
operate with either switch. Push LOCK again to return
the passenger's power window to normal operation. The
lock button does not affect the driver's manual window
operation.
The passenger's power window will not move unless the
ignition switch has been turned to ON.
The passenger's power window can be operated for up
to 30 seconds after the ignition switch has been
turned to LOCK.
2-5