How to Replace Door Latch Assembly 89-99 GMC Sierra K1500
Difficulty: Advanced · About 90 min · Gmc Sierra K1500
Replace a door latch assembly on an 1989–99 GMC Sierra K1500, supporting the window while moving the regulator panel and reconnecting lock rods and wiring.
Tools you will need
- Flat blade screwdriver
- Phillips screwdriver
- T30 driver
- 7 mm socket
- 10 mm socket
- Painter's tape
- Trim tool
Parts and supplies
- Door latch assembly
Steps
Remove the door panel
Remove the pull screws and release the panel clips. Disconnect the window switches, courtesy lamp, and tweeter, then lift the panel away from the door.
Remove the inner access panel
Peel the water shield back and lower the window. Remove the accessory panel fasteners, disconnect rods and wiring, then slide the panel and regulator clear of the glass track.
Support the glass and remove the handle
Raise the window fully and tape it securely. Remove the exterior handle fasteners, disconnect its rods, and lift the handle out of the door.
Remove the old latch
Remove the latch bolts and vent fasteners, then slide the latch mechanism down and out. Keep wiring and rods clear so they do not snag.
Install the replacement latch
Guide the new latch into position and secure it. Reinstall the door vent and exterior handle, reconnecting its lock and release rods to their correct clips.
Reinstall the access panel
Reconnect the speaker, window motor, lock actuator, and rods. Return the accessory panel to the window track and secure its fasteners, then reseal the water barrier.
Test and reinstall door trim
Test the lock, inside and outside handles, and window travel before fitting the trim panel. Reconnect switches and lamps, seat the panel clips, and reinstall the screws.
Check your vehicle’s repair manual for exact specifications and fit.