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How to Replace Door Lock Actuator 88-00 GMC K1500

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  1. step : Removing the Door Panel (0:42)
    • Remove the two Phillips head screws from the door pull
    • Pry off the door handle bezel with a trim tool
    • Pry off the mirror base panel with a trim tool
    • Pry off the power window switch panel with a trim tool
    • Disconnect the tweeter electrical connector
    • Disconnect the window switch electrical connectors
    • Pry out the door light with a trim tool
    • Disconnect the door light electrical connector
    • Pry out the bottom of the door panel with a trim tool
    • Pry out the clip at the top front corner of the door panel
    • Lift the door panel up and off the door
  2. step : Removing the Interior Accessory Panel (3:16)
    • Carefully peel off the inner water shield
    • Roll the window all the way down
    • Remove the ten 7mm screws around the panel
    • Remove the one 10mm screw near the speaker
    • Pull the panel forward
    • Pry off the latch and remove the handle rod
    • Pop the handle rod out of its retainer
    • Pry off the latch and remove the lock rod
    • Pop the lock rod out of its retainer
    • Pull the lock rod out of the actuator
    • Pop out the tab for the courtesy light
    • Disconnect the door lock actuator connector
    • Pop the retainer through the door
    • Pop out the rest of the retaining clips
    • Disconnect the window motor
    • Disconnect the door speaker
    • Pull the harness through the door
    • Slide the accessory panel forward until the window roller is out of the channel
    • Slide the guide out the back and remove the panel
  3. step : Removing the Door Lock Actuator (6:19)
    • Remove the four 1/4" screws from the actuator
    • Remove the actuator
  4. step : Reinstalling the Door Lock Actuator (7:27)
    • Insert the actuator into the door
    • Tighten the four Phillips screws to the actuator
  5. step : Reinstalling the Accessory Panel (7:38)
    • Reinstall the door speaker connector
    • Connect the window motor connector
    • Slide the panel and regulator into the window track
    • Slide the panel forward
    • Install the front part of the regulator's wheel into its slot
    • Reconnect the door lock rod to the interior handle
    • Reconnect the door handle rod to the interior handle
    • Engage the lock actuator
    • Snap both rods into their guides
    • Lift the accessory panel into place
    • Clip the wiring harnesses into place
    • Run the harness through and reconnect the door actuator
    • Tighten the ten 7mm screws to the panel
    • Tighten the one 10mm screw
    • Carefully press on the water shield
  6. step : Installing the Door Panel (10:05)
    • Lift the door panel into place
    • Pull the wiring harnesses through the window switch opening
    • Push in the door panel clips
    • Clip on the door handle bezel
    • Connect the door light electrical connector
    • Clip on the mirror base trim panel
    • Insert the two Phillips screws into the door pull
    • Connect the electrical connector to the tweeter
    • Connect the two electrical connectors to the window switch
    • Push the switch panel into the door

Hi, I'm Mike from 1AAuto. We've been selling auto parts for over 30 years! We're dedicated to delivering quality auto parts, expert customer service, and fast and free shipping, all backed by our 100% satisfaction guarantee. So visit us at 1AAuto.com, your trusted source for quality auto parts.

In this video we'll be working with our 1996 GMC Sierra. We're going to show you how to remove and replace your power door lock actuator. We're doing this on the passenger side, but the driver's side will be the same. If you like this video, please click subscribe. We have a ton more information on this and many other vehicles. If you need this part or your truck, you can follow the link down in the description over the 1AAuto.com.

Here are the items you'll need for this repair.

Remove the two Phillips head screws inside of the armrest on the door. Do this with a Phillips head screwdriver. To remove the bezel around the interior door handle, you need to kind of get in there with a trim tool or a flat blade screwdriver, and push down on the tab to release it. There are three: one at the top, one at the bottom, and one on the side.

Remove the extension at the top of the door panel by prying out with a trim tool. Using your trim tool, pry up at the back of the power window switch. Lift it up and pull back to release the hook at the front. Disconnect the connector for your tweeter. Pop up the tab on this two pin connector at the front of the window switch, and pop the connector out, and then push down on the tab for the main connector and remove that from the switch. I'm using a pick here. You could also use a small flat blade screwdriver or a trim tool if you had to, really whatever works best for you.

Using the trim tool, pop out on the door reflector and remote the connector. This is another one of the ones we'll have to lift up on the tab with a pick. Using a trim tool, pry out the bottom of the door. You may need to work it a little bit to figure out where the tabs are. You'll also need to pop out this pin at the top on the front of the door. Once all the tabs are out, lift the panel up and remove it from the door.

Peel off the inner water shield on the door. There's also a small piece over in the corner. Make sure your window is rolled all the way down. There are ten 7 millimeter screws around the perimeter of the inner panel. One under the speaker here that's a little tricky to see, and a 10 millimeter at the front. We'll need to remove all of those with a socket and ratchet. Pull the panel forward. Pull out the handle rod. It may help to have a tool to help you get some leverage on it. You'll also want to pop that out of its guide clip. Same thing with the lock rod down here. We'll also need to pop this out of its guide rod and pull it out of the lock actuator as well. Pop out the tab for the courtesy light in the door. Lift up on the cover for the door lock actuator, and remove that connector. You need to fish it out and around. Pop that retainer through, and then pop out all the rest of the retaining clips to remove the harness from the door.

You'll also need to unplug the window motor and the door speaker and pull the harness through the door. Slide the door panel forward until the window roller is out of its channel, then slide the guide out of the back and remove the assembly from your vehicle.

Remove the four 1/4 inch screws from the bottom of the door lock actuator. Ours is missing one, but you're remove them the exact same way. Remove the actuator.

So here we have our old door lock actuator that we removed from our truck and our new part from 1AAuto.com. If you remove this rubber sheathing on the old part, you'll see that they're exactly the same. We have the same two-pin connector at the back, the same body and the same actuator arm on both pieces. We also have four new screws that come with this. We'll need to remove those with a Phillips head screwdriver and install it onto our door panel just like our original equipment.

Install your new lock actuator and the new Phillips head screws, as well as your lock washers and nuts included with your new part. Using a 9/16th wrench and a Phillips head screwdriver, tighten down the four new screws for your door lock actuator.

Reconnect your door speaker and your window motor, and send the rest of your wiring harness back through the door. Slide the back half of your window regulator back into the window track. Once the back is in, slide forward and install the front part of the regulator into the glass as well. Reconnect the door lock as well as the door handle. Don't forget to engage the lock actuator, and snap both rods back into their guides.

Realign your door panel. Reinstall your wiring harness. Make sure that all the tabs and retainers go back in their appropriate places. Make sure you run the harness through, and reconnect the door actuator as well. Lock the clasp in for your reflector, courtesy light, and reinstall the ten 7 millimeter screws around the perimeter, as well as the one 10 millimeter. Reinstall the water shield. Sometimes this adhesive doesn't really want to stick a second time, if that's the case, it's all right to put some tape on there to secure the edges.

Pull your wire harness back through the door and lay the top edge into the door frame. Line up the plastic containers and push them all back into place. Reinstall the inner door handle bezel by lining it up and snapping it in. Reinstall your reflector. Place the upper door extension into place. Reinstall the two Phillips head screws in the armrest.

Reconnect your door speaker as well as the two electrical connections on the power window switch. Slide the front hook into the door panel. Snap the back into place, and you're good to go.

Thanks for watching. Visit us at 1AAuto.com for quality auto parts, fast and free shipping, and the best customer service in the industry.

Tools needed for replacement:

    Materials, Fluids, and Supplies

  • Painter's Tape

  • Ratchets & Related

  • Ratchet
  • Socket Extensions

  • Screwdrivers & Related

  • Phillips Head Screwdriver
  • Flat Blade Screwdriver

  • Sockets - Metric

  • 7mm Socket
  • 10mm Socket

  • Sockets - SAE

  • 1/4 Inch Socket

  • Specialty Tools

  • Trim Tool Set

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1987 - 1991  GMC  Suburban V1500
1987 - 1991  GMC  Suburban R2500
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1977 - 1986  GMC  Suburban C2500
1977 - 1986  GMC  Suburban K2500
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1992 - 1999  GMC  Suburban K1500
1992 - 1999  GMC  Suburban C2500
1992 - 1999  GMC  Suburban K2500
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1978 - 1991  Chevrolet  G30
1978 - 1978  GMC  G35
1979 - 1991  GMC  G2500
1978 - 1978  GMC  G25
1979 - 1991  GMC  G1500
1979 - 1991  GMC  G3500
1978 - 1978  GMC  G15
1988 - 1989  Oldsmobile  Cutlass Supreme
1983 - 1991  GMC  Jimmy S-15
1992 - 1994  GMC  Jimmy
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1982 - 1987  Chevrolet  Monte Carlo
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1985 - 2005  GMC  Safari
1990 - 2005  GMC  Safari
1977 - 1990  Cadillac  Deville
1982 - 1990  Oldsmobile  Custom Cruiser
1977 - 1990  Oldsmobile  98
1977 - 1990  Oldsmobile  98-Regency
1977 - 1988  Oldsmobile  Cutlass Supreme
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1986 - 1989  Pontiac  Bonneville
1977 - 1992  Buick  Regal
1990 - 1990  Buick  LeSabre
1977 - 1990  Buick  Electra
1977 - 1990  Cadillac  Brougham
1977 - 1990  Cadillac  Fleetwood
1989 - 1991  Chevrolet  Suburban V2500
1982 - 1983  Chevrolet  Citation
1978 - 1982  Chevrolet  Corvette
1984 - 1984  Chevrolet  Corvette
1985 - 1987  Buick  Somerset
1978 - 1987  Oldsmobile  Calais
1988 - 2000  Chevrolet  C2500 Truck
1988 - 1999  GMC  C1500 Truck
1988 - 1999  GMC  K1500 Truck
1982 - 1989  Chevrolet  Caprice
1985 - 1995  Chevrolet  G10
1985 - 1995  Chevrolet  G20
1996 - 1996  Chevrolet  G30
1985 - 1995  Chevrolet  G30
1985 - 1995  GMC  G3500
1985 - 1995  GMC  G2500
1985 - 1995  GMC  G1500
1996 - 1996  GMC  G3500
1988 - 1998  GMC  C1500 Truck

Door Lock Actuator

Door Lock Actuator Dorman 746-014

This part replaces:

  • OE # 22020256
  • Dorman 746-014

Part Details

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