How do you replace a mirror on a 2002 avalanche?

To replace a mirror on a 2002 Chevrolet Avalanche, first, ensure the vehicle is parked and the ignition is off. Carefully remove the interior door panel by unscrewing screws and gently prying it away from the door frame. Disconnect the wiring harness for the mirror, then remove the bolts securing the old mirror to the door. Install the new mirror by reversing the process: secure it with bolts, reconnect the wiring, and reattach the door panel.