GM 22666179 Rear Side Door Lock Assembly

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Every three months or three thousand miles, pour a little oil or lock lubricant into the hinges and latch assemblies of the doors, hoods, trunks (or liftgates) and simply let them be. Additionally, to minimize disintegration and enhance smoothness, it is advisable to apply thin layers of grease on door latch strikers. Use graphite spray on the locks of the car for greasing them.

Start by raising the window, then remove the door trim panel and water shield. On the outside of the door, remove the door handle cover carefully to avoid scratching the paint. Next, remove the door outer panel. Remove rivets, disconnect handle linkage, and remove the handle mechanism from the door. On the inside of the door, slide the door handle forward and unlatch the actuating rod from the door handle lever, then pull out and disconnect the front lock rod from the latch mechanism. Unhook the door handle actuating rods from the latch mechanism and remove the bolt from the lower section of the door jamb. Lower the window run channel, remove it from the door, and pull the upper weather strip to create space to raise the window glass. Disconnect electrical connectors from the latch mechanism, remove the latch mounting bolts, and angle the latch mechanism out of the door access hole. Remove the lock cylinder rod if not already removed, remove the clip, and take out the lock cylinder from the door. Installation is the reverse of removal, and it's advisable to replace the lock rod retainers when removed.

They should be lubricated with a thin coat of grease.

Start by raising the window, then remove the door trim panel and water shield. On the outside of the door, remove the door handle cover carefully to avoid scratching the paint. Next, remove the door outer panel. Remove rivets, disconnect handle linkage, and remove the handle mechanism from the door. On the inside of the door, slide the door handle forward and unlatch the actuating rod from the door handle lever, then pull out and disconnect the front lock rod from the latch mechanism. Unhook the door handle actuating rods from the latch mechanism and remove the bolt from the lower section of the door jamb. Lower the window run channel, remove it from the door, and pull the upper weather strip to create space to raise the window glass. Disconnect electrical connectors from the latch mechanism, remove the latch mounting bolts, and angle the latch mechanism out of the door access hole. Remove the lock cylinder rod if not already removed, remove the clip, and take out the lock cylinder from the door. Installation is the reverse of removal, and it's advisable to replace the lock rod retainers when removed.