How do you replace a actuator door motor gmc serria?

To replace the actuator door motor in a GMC Sierra, first disconnect the vehicle's battery to ensure safety. Remove the door panel by unscrewing any fasteners and gently prying it off to access the actuator. Disconnect the wiring harness from the old actuator, unbolt it, and replace it with the new motor. Finally, reassemble the door panel and reconnect the battery before testing the new actuator.