🔧 Prius - Side View Mirror Replacement

Replacing the side mirror on your Prius is mostly a door-panel removal job. Once the inner trim is off, the mirror is held on by three nuts and one electrical connector.

Difficulty Level: Intermediate | Estimated Time: 1.0-2.0 hours

---

⚠️ Safety & Precautions

• ⚠️ Turn the car OFF and keep the key fob 10+ feet away.
• ⚠️ Disconnect the 12V battery negative terminal to avoid warning lights and accidental window/mirror movement.
• ⚠️ Support the mirror with your hand while removing the last nut so it doesn’t fall and chip paint.
• ⚠️ Use trim tools (plastic) to avoid scratching the door panel.

---

🔧 Required Tools

You'll need the following tools for this repair:

• Safety glasses
• Nitrile gloves
• Plastic trim removal tool set
• 10mm socket
• 1/4" drive ratchet
• 6" socket extension
• Torque wrench (inch-pound or low-range Nm)
• Phillips screwdriver
• Small flat screwdriver
• Needle-nose pliers
• Painter’s tape

---

🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Side view mirror assembly (left or right, correct options) - Qty: 1
• Door trim panel clips - Qty: 5-10
• Mirror mounting gasket (if not included with mirror) - Qty: 1

---

📋 Before You Begin

• Park on level ground and open the window on the side you’re working on.
• Use painter’s tape along the mirror base/door edge to protect paint.
• Disconnect the 12V battery: use a 10mm socket to remove the negative cable and tuck it aside so it can’t spring back. (The 12V battery is the small battery that powers computers and accessories.)

---

🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the small inner “sail” trim panel

• At the top front corner of the door (inside), pry off the small triangular trim using a plastic trim removal tool set.
• If it has a tweeter speaker, disconnect it by releasing the connector tab with a small flat screwdriver.

Step 2: Remove the window switch panel

• Pry up the window switch panel using a plastic trim removal tool set.
• Disconnect the electrical connectors by pressing the lock tabs (help gently with a small flat screwdriver if needed).

Step 3: Remove the door panel fasteners

• Remove the Phillips screw(s) in the inner door pull/armrest area using a Phillips screwdriver.
• If there is a small cover hiding a screw, pop the cover with a small flat screwdriver, then remove the screw with a Phillips screwdriver.

Step 4: Remove the door panel

• Starting at the bottom edge, pop the door panel clips loose using a plastic trim removal tool set.
• Lift the panel straight up to unhook it from the window ledge.
• Disconnect any remaining connectors. If there’s a cable for the inside handle, unclip it carefully using needle-nose pliers. Go slow—plastic clips break easily.

Step 5: Peel back the vapor barrier (water shield) near the mirror area

• Carefully peel the plastic sheet back just enough to reach the mirror mounting area.
• Avoid ripping it; keep the sticky butyl adhesive clean.

Step 6: Unplug the mirror connector

• Find the mirror wiring connector near the mirror mounting area and unplug it by pressing the lock tab.
• Note: some mirrors have more than one function (power adjust, heater, turn signal, blind spot). If your replacement mirror has fewer/more features, the connector may not match.

Step 7: Remove the mirror mounting nuts

• Support the mirror from the outside with one hand.
• Use a 10mm socket, 6" socket extension, and 1/4" drive ratchet to remove the three mounting nuts.
• Remove the mirror from the door and feed the harness out through the hole.

Step 8: Install the new mirror

• Make sure the mirror mounting gasket is seated flat against the mirror base.
• Feed the wiring through the door opening and set the mirror in place.
• Start all three nuts by hand (prevents cross-threading).
• Tighten the nuts with a torque wrench: Torque to 7.5 Nm (66 in-lbs).

Step 9: Reconnect wiring and reassemble the door

• Plug in the mirror connector until it clicks.
• Re-stick the vapor barrier firmly to keep water out.
• Reconnect door handle cable/connectors, then hang the door panel on the top edge and press the clips back in.
• Reinstall screws using a Phillips screwdriver.
• Snap the window switch panel back in, reconnecting connectors first.
• Reinstall the sail trim panel by pressing it into place.

Step 10: Reconnect the 12V battery

• Reconnect the negative terminal using a 10mm socket.

---

✅ After Repair

• Turn the car on and test mirror adjustment in all directions.
• If equipped, test turn signal in mirror, mirror heater/defrost, and blind spot indicator.
• Check the mirror housing for wobble and recheck the three nuts if needed.
• Confirm the window and door lock switches work.

---

💰 DIY vs Shop Cost

Shop Cost: $250-$650 (parts + labor)

DIY Cost: $90-$450 (parts only)

You Save: $160-$200+ by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.0-1.5 hours.

---

🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.