The procedure for exterior handle replacement starts with removing the trim panel followed by pulling back the water deflector depending on the circumstances. You need to detach the lock cylinder rod from its rod clip before removing the nuts on the outside handle and taking out the handle itself. You should disconnect electrical cables and take off the
Door Lock Cylinder while removing the actuator cable. Handle lock cylinder binding requires proper attention while new cylinder lock coding needs correct procedures. You should apply gm p/n 12345120 (Canadian P/N 726548) lubricant inside the lock case and keyway of the cylinder during new lock cylinder installation. To complete the door lock repair you must install the Door Lock Cylinder together with the actuator cable before connecting the electrical connector if present followed by handle assembly installation. Move on to tighten the outside handle mounting nuts to 9 n.m (80 lb in), install the lock cylinder rod within the rod clip and reinstall the required water deflector as well as trim panel.