1500 - Rear Window Regulator Replacement 🔧

On your 2015 1500 Crew Cab, the rear window regulator is the mechanism inside the rear door that moves the glass up and down. I’ll walk you through replacing one rear door regulator (left or right) — the steps are almost the same for both.

Quick check: Is your problem on the left rear door, right rear door, or both? And is the glass still up, or has it fallen down into the door?

If you answer later, you can still follow the guide below — just work on the door that’s bad.

Tools & Parts You’ll Need 🧰

• 🛠️ Replacement rear window regulator (for your 1500 rear left or rear right; with or without motor depending on what you bought)
• 🛠️ Socket set:
  • 10 mm socket (regulator and glass bolts)
  • 8 mm socket (some trim/door module screws, if equipped)
  • Ratchet and short extension
• 🛠️ T20 Torx screwdriver/bit (Torx = star-shaped screw head)
• 🛠️ Phillips screwdriver (cross-shaped tip)
• 🛠️ Trim removal tool (plastic pry tool to pop clips without scratching paint)
• 🛠️ Flat plastic pry tool or old plastic card (to gently pry covers)
• 🛠️ Needle-nose pliers (for clips and cable ends if needed)
• 🛠️ Painter’s tape or masking tape (to hold the glass up)
• 🛠️ Work light or flashlight
• 🛠️ Optional: Panel clip pliers (tool that grabs door clips to remove them cleanly)

Safety First ⚠️

• ⚠️ Disconnect the battery negative cable (10 mm at the battery) before unplugging window motors. This prevents accidental movement and avoids short circuits.
• ⚠️ Support the glass with tape or a helper hand before loosening the glass bolts. Loose glass can drop and crack.
• ⚠️ Work with the truck in PARK, engine off, and key out.

1500 - Rear Door Panel Removal 🚪

Steps are the same for left and right rear doors.

• 🧩 1. Disconnect the battery
  • Open the hood.
  • Use a 10 mm socket to loosen the negative (-) battery terminal.
  • Lift the cable off and tuck it aside so it can’t spring back.
• 🧩 2. Move the rear seat if needed
  • Fold or slide the rear seat to give yourself room at the door you’re working on.
• 🧩 3. Remove trim covers hiding screws
  • At the inside door handle bezel (the silver/black piece around the handle), look for a small plastic cover or slot. Use a plastic pry tool to pop the cover off and expose a screw.
  • In the armrest pull handle (where you grab to pull the door closed), there is usually a small trim cover at the bottom. Pry it up gently to reveal another screw.
  • Check near the bottom front of the door panel for any visible screws (some trucks have an extra one there).
• 🧩 4. Remove door panel screws
  • Use a T20 Torx or Phillips (depending on what you see) to remove:
    • 1 screw behind the inside handle bezel.
    • 1–2 screws in the armrest pull handle.
    • Any visible lower screws (often Phillips).
• 🧩 5. Pop the door panel clips
  • Starting at the bottom edge of the door panel, slide a trim removal tool between the panel and metal door.
  • Gently pry outward to pop the plastic clips. You’ll feel them release one by one.
  • Work your way around the sides and bottom. Leave the top edge (by the window) for last.
• 🧩 6. Lift the door panel off
  • Once all clips are loose, lift the panel straight up to unhook it from the top edge by the glass.
  • Support the panel with one hand; don’t yank it away yet.
• 🧩 7. Unplug wiring and handle cable
  • Unplug the window switch connector and any other connectors (door speaker, courtesy light) by pressing the tab and pulling straight out.
  • At the inside handle, you’ll see a cable:
    • Pop the plastic cable housing out of its bracket.
    • Rotate and unhook the cable end from the handle lever.
  • Set the door panel aside somewhere safe.

1500 - Accessing the Regulator 🪟

• 🧩 8. Remove the water shield
  • Behind the panel is a plastic or foam water barrier stuck with butyl (sticky black sealant).
  • Carefully peel it back from the side where the regulator is, just enough to access the large openings in the door.
  • Try not to tear it; you’ll reuse it to keep water out.
• 🧩 9. Secure the glass in the up position
  • If the glass is already up, use painter’s tape on the outside:
    • Run 2–3 long strips from the glass over the top of the door frame and down the outside.
  • If the glass has dropped:
    • Manually slide it up by hand from inside the door opening.
    • Hold it in place and tape it as above.
• 🧩 10. Locate the glass-to-regulator bolts
  • Look through the large access holes in the door inner metal.
  • You’ll see the window glass clamp or bracket with a 10 mm bolt (sometimes two) that clamps the glass to the regulator.
• 🧩 11. Loosen the glass clamp bolts
  • Use a 10 mm socket to loosen (do not fully remove) the clamp bolts until the glass is free from the regulator.
  • Make sure the glass is still held by tape and not resting on the regulator.

1500 - Removing the Old Regulator ⚙️

• 🧩 12. Unplug the window motor
  • Find the window motor (round or oval unit with a connector).
  • Press the locking tab and unplug the electrical connector.
• 🧩 13. Remove regulator and motor bolts
  • Use a 10 mm socket to remove:
    • 3 bolts holding the window motor to the door.
    • 3–4 bolts holding the regulator tracks to the door (vertical rails or scissor arms, depending on style).
• 🧩 14. Remove the regulator assembly
  • Support the regulator with one hand.
  • Carefully maneuver the regulator and motor out through the largest opening in the door inner panel.
  • Note the orientation so you can install the new one the same way.
• 🧩 15. Swap motor (if your new part is regulator-only)
  • If your new part does not include a motor:
    • Remove the motor from the old regulator (usually 3 x 10 mm bolts).
    • Install the motor onto the new regulator in the same position and tighten the bolts snugly.

1500 - Installing the New Regulator ✅

• 🧩 16. Position the new regulator in the door
  • Feed the new regulator and motor into the door through the large opening.
  • Align the mounting holes in the regulator and motor with the holes in the door.
• 🧩 17. Install regulator and motor bolts
  • Install all 10 mm bolts finger-tight first:
    • 3 bolts for the motor.
    • 3–4 bolts for the regulator tracks.
  • Then snug them with the ratchet.
  • Torque spec (typical Ram door hardware): about 8–10 N·m (70–90 in-lb) — firm but not “gorilla tight.”
• 🧩 18. Reconnect the motor temporarily
  • Plug the motor connector back in so you can move the regulator to line up with the glass.
• 🧩 19. Reconnect battery and position the regulator
  • Reconnect the negative battery cable (10 mm) just for this step.
  • Turn the key to RUN (engine off).
  • Use the rear window switch to move the regulator up/down until the glass clamp lines up with the glass edge (visible through the access hole).
  • Turn key off again.
  • Leave the glass taped in place while you align it.
• 🧩 20. Attach the glass to the regulator
  • With the regulator clamp aligned to the glass:
    • Gently lower the glass by hand (remove or loosen tape as needed) until it sits in the clamp.
    • Make sure the glass is fully seated and straight in the channel.
    • Tighten the 10 mm clamp bolts to about 8–10 N·m.
  • Remove the tape from the glass.
• 🧩 21. Test the window
  • With the door still open and panel off:
    • Turn key to RUN.
    • Run the window all the way down and all the way up several times.
    • Watch for smooth movement, no binding, and no strange noises.
  • If it binds or tilts:
    • Loosen the glass clamp slightly, straighten the glass, and retighten.

1500 - Reassembly 🧱

• 🧩 22. Reinstall the water shield
  • Press the plastic/foam barrier back into place, sealing it all the way around.
  • This keeps water from getting into the cabin.
• 🧩 23. Reconnect door wiring and cable
  • Reconnect:
    • Window switch connector
    • Speaker connector and any courtesy light connector
  • Reattach the door handle cable:
    • Hook the cable end into the handle lever.
    • Snap the cable housing back into its bracket.
• 🧩 24. Reinstall the door panel
  • Hang the top of the panel on the window ledge first.
  • Once it’s seated at the top, push the panel straight in so the plastic clips line up with their holes.
  • Firmly smack around the edges with the heel of your hand to seat all clips.
• 🧩 25. Reinstall screws and trim covers
  • Reinstall:
    • Screw(s) behind the inside handle bezel.
    • Screw(s) in the armrest pull handle.
    • Any lower screws you removed.
  • Snap the plastic covers back over the screw heads.
• 🧩 26. Final test
  • Make sure the battery is connected.
  • Test:
    • Rear window switch on that door.
    • Rear window control from the driver’s master switch.
  • Check door lock and inside handle operation before calling it done.

Tips & Tricks 💡

• 💡 Keep all screws and clips in a small tray or cup so nothing gets lost.
• 💡 If a plastic clip stays in the door instead of the panel, use needle-nose pliers to pull it out and snap it back onto the panel before reinstalling.
• 💡 If the window auto function (one-touch) acts weird afterward, cycle the window fully up and hold the switch for 3–5 seconds, then fully down and hold for 3–5 seconds to “relearn” the limits.

HowToo makes it easy: below this answer you’ll see the correct rear window regulator(s) for your 1500, plus trim tools and socket sets. You can add them to your cart right from the parts section for fast shipping.

If you tell me which side (left/right or both) and whether your new regulator includes the motor, I can tailor the steps and torque specs even tighter to your exact setup.