GM 15110511
Lock Assembly

To replace the tailgate left upper latch, first, swing open the tailgate and take out the tailgate trim panel, then tailgate inner reinforcement panel. Next, take off the two screws holding the latch assembly to the tailgate and disconnect the electrical connector from the latch assembly before you take off the latch from the tailgate. As for installation, install the latch to the tailgate and join the electrical connector to the latch assembly. Make sure to install the screws that hold the latch assembly to the tailgate with a torque of 10 N.m (89 lb in). Lastly, fit the tailgate inner reinforcement panel and the tailgate trim panel.

You must dismantle the liftgate window garnish and trim panel before substituting the liftgate latch. Unclip both components: the handle rod from the bellcrank and the bellcrank rod from the latch assembly. Unscrew the bellcrank screws attached to the latch/lock before removing the bellcrank piece. Remove the electrical connector from its position on the latch assembly plus disconnect the lock cylinder bellcrank rod from its mounting on the latch assembly. Take out the latch/lock assembly by unscrewing it from its mounting position on the liftgate. Position the latch/lock assembly onto the liftgate then install the screws while tightening them to 89 lb in according to the prescribed torque. Join the electrical and lock cylinder bellcrank rod to the latch/lock hardware unit. Place the bellcrank onto the latch/lock assembly structure then thread screws before tightening them to 0.7 newton meter (6 pound inch). Link the button to the handle setup through the bellcrank mechanism while also attaching the door handle rod to the bellcrank. Finish by putting back the trim panel and door window decoration.

The process starts with tailgate swinging open and removing the tailgate trim panel then proceeding to remove the tailgate inner reinforcement panel. Start by removing screws that hold the latch assembly to the tailgate followed by disconnecting the electrical connector from the latch until you can remove it from the tailgate. Position the latch so it fits onto the tailgate before connecting its electrical connector to the latch assembly. Add screws that retain the latch assembly to the tailgate while tightening them to 10 N.m (89 lb in). The tailgate trim panel together with the tailgate inner reinforcement panel need to be reinstalled.

You must begin the process of replacing the rear side Door Lock Actuator by taking away the door trim panel. Begin by removing the water deflector after taking out the Door Latch Assembly. You need to remove the 2 screws which hold the actuator in place on the lock. Then you must raise and turn the actuator in opposition to the latch direction to take off the rubber Bumper. Reinstall the rubber Bumper onto the latch then position the actuator toward the latch to reach full engagement of the rubber Bumper. The very first gear tooth of the actuator's apparatus should connect properly with its matching tooth on the latch component. Place the actuator at the top of the latch before using the two retaining screws to secure it to the lock with 0.75 nm torque (6 lb in). Follow the above steps to replace the lock to the door then add the water deflector and fit back the door trim panel.

Starting the tailgate left lower latch replacement requires tailgate swinging open followed by tailgate trim panel removal before removing the tailgate inner reinforcement panel. After disconnecting the electrical connector from the latch assembly start by removing the screws that secure the latch assembly to the tailgate. First position the latch onto the tailgate after which connect its electrical connector to the latch assembly. The latch assembly requires 10 N.m (89 lb in) torque when screw installation is complete to secure it to the tailgate. Reinstall the tailgate trim panel along with the tailgate inner reinforcement panel.

First remove the door trim panel and then the water deflector together with the Door Latch Assembly to access the rear side Door Lock Actuator. There are two screws which maintain the actuator in place to the lock. Lift the actuator away from the latch simultaneous to its rotation which disengages the rubber Bumper from the latch before removing the actuator from the post. First install the rubber Bumper on the latch then direct the actuator in the direction of the latch while fully engaging the rubber Bumper. The installation requires that the primary gear tooth of the actuator should lock into position with the equivalent tooth on the latch system. The top portion of the latch accepts the actuator for mounting before you fasten it with two screws which need to be tightened to 0.75 n.m (6 lb in). The lock installation ends with fitting the door, then adding back the water deflector and the door trim panel.

Attach the latch assembly to the latch bracket, ensuring to follow the Fastener Notice in Service Precautions.

Take out the 2 screws that secure the actuator to the lock.

Reinstall the liftgate trim panel and the liftgate window garnish molding.

The lock to the door, the water deflector, and the door trim panel.

Install the 2 screws that secure the actuator to the lock, tightening them to 0.75 N.m (6 lb in).

Remove the latch from the endgate.

The water deflector and the door latch assembly.

Install the latch bracket assembly back onto the endgate and secure it with bolts, tightening them to 25 N.m (18 lb ft).

Reinstall the lock to the door, followed by the water deflector and the door trim panel.

Slide the support cable forward off the endgate striker bolt head, then remove the bolts that secure the latch/support cable assembly to the endgate and take out the latch assembly.

Next, take out the water deflector and then the door latch assembly.

Begin by removing the door trim panel.