How to Replace the Side View Mirror on a 2018-2022 GMC Canyon
Step-by-step door panel removal, wiring, installation, torque specs, and safety tips for 2018, 2019, 2020, 2021, 2022
How to Replace the Side View Mirror on a 2018-2022 GMC Canyon
Step-by-step door panel removal, wiring, installation, torque specs, and safety tips for 2018, 2019, 2020, 2021, 2022
🔧 Canyon - Side View Mirror Replacement
Replace the complete mirror by removing the interior door panel, disconnecting its wiring, and removing three mounting nuts. The mechanical work is straightforward, but the replacement must match the original mirror’s side, connector, heat, signal, adjustment, and folding features.
Assumption: These instructions cover one complete factory-style power mirror assembly. The available Eagle Eyes Premium Right Heated Door Mirror fits the passenger side only and requires confirmation of the listed second-design configuration.
Difficulty Level: Beginner | Estimated Time: 1-1.5 hours per side
⚠️ Safety & Precautions
- ⚠️ Lower the window before starting so you can steady the mirror from outside.
- 🧤 Wear gloves because the door panel edges and broken mirror glass can be sharp.
- 🔋 Disconnect the negative battery cable before unplugging door wiring.
- 🚫 Do not switch the ignition on while door connectors are unplugged.
- 🪟 Support the mirror before removing its final mounting nut. Otherwise, it can fall against the paint.
- 🔌 Never pull a connector apart by its wires. Release its locking tab first.
🔧 Required Tools
You'll need the following tools for this repair:
- 7mm socket
- 10mm socket
- 1/4-inch drive ratchet
- 3-inch socket extension
- Inch-pound torque wrench
- Plastic interior trim removal tool set
- Small flat-blade screwdriver
- Nylon panel-clip pliers
- Painter’s masking tape
- Mechanic’s gloves
- Safety glasses
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Complete side view mirror assembly matching the original features - Qty: 1
- Interior door-panel clips - Qty: As needed
- Mirror mounting nuts - Qty: 3, only if damaged or missing
The passenger-side Eagle Eyes Premium Right Heated Door Mirror shown in the parts list is a possible replacement only when your original is the second-design, heated, manual-folding version. Mirror connectors love looking almost identical while being electrically different, which is classic parts-counter mischief.
📋 Before You Begin
- Park your Canyon on level ground, shift into Park, and apply the parking brake.
- Lower the window completely and switch the ignition off.
- Compare the new and old mirrors before disassembly. Match the mounting studs, electrical connector, number of connector pins, heat, turn signal, power adjustment, and folding operation.
- Use painter’s masking tape around the exterior mirror base to protect the door paint.
- Open the hood and disconnect the negative battery cable with a 10mm socket. Wait at least two minutes before unplugging door wiring.
- No infotainment service mode or scan-tool command is normally required for a standard mirror assembly replacement.
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Remove the interior handle trim
- Use a plastic interior trim removal tool to carefully lift the small trim cover behind the interior door-release handle.
- Work from the provided notch and avoid twisting the tool against the visible surface.
- Place the trim piece somewhere safe.
Step 2: Remove the door-pull trim
- Use a plastic interior trim removal tool to lift the trim insert inside the door pull or armrest.
- Release each retaining tab gradually instead of pulling one end upward sharply.
- Remove the exposed screws with a 7mm socket and 1/4-inch drive ratchet.
Step 3: Remove the remaining door-panel fasteners
- Inspect the lower edge and handle area for additional exposed fasteners.
- Remove the door-panel screws with a 7mm socket and 3-inch socket extension.
- Keep the screws arranged by location because their lengths may differ.
Step 4: Release the door-panel clips
- Insert a plastic interior trim removal tool between the lower rear edge of the panel and the metal door.
- Twist the tool gently until the first retaining clip releases.
- Continue along the bottom and both sides, releasing one clip at a time.
- Use nylon panel-clip pliers for any clip that remains stuck in the metal door.
- Pull near each clip, not between clips.
Step 5: Lift and disconnect the door panel
- Hold the panel with both hands and lift it straight upward to unhook it from the window ledge.
- Support the loose panel rather than letting it hang from the wiring.
- Use a small flat-blade screwdriver to release stubborn electrical-connector locks without pulling on the wires.
- Disconnect the window-switch connector, courtesy-light connector, and any other attached electrical plugs.
- Release the interior handle cable by rotating its plastic retainer and lifting the cable end from the handle.
- Set the panel on a clean padded surface.
Step 6: Access the mirror mounting area
- Use a plastic interior trim removal tool to remove the triangular interior sail panel at the upper front corner of the door, if it did not come away with the panel.
- Carefully peel back only the front upper portion of the moisture barrier.
- Do not tear or cut the barrier. It keeps rainwater away from the interior trim and electrical connections.
Step 7: Disconnect the mirror wiring
- Locate the mirror electrical connector inside the door.
- Use a small flat-blade screwdriver only if needed to depress its locking tab.
- Disconnect the plug and release the mirror harness from its routing clips.
- Note the harness routing so the replacement cannot interfere with the window glass or regulator.
Step 8: Remove the original mirror
- Support the mirror from outside with one hand.
- Use a 10mm socket, 3-inch socket extension, and 1/4-inch drive ratchet to remove the three mirror mounting nuts.
- Keep each nut from falling into the door cavity.
- Pull the mirror straight away from the door while guiding its connector and harness through the opening.
- Clean the mounting surface without disturbing the paint.
Step 9: Compare the replacement mirror
- Place the old and new mirrors side by side.
- Confirm that the connector shape, pin arrangement, studs, gasket, and wiring length match.
- Confirm that the replacement has every original function. A heated mirror does not automatically include an integrated turn signal or powered folding.
- Stop installation if the connector or mounting pattern differs.
Step 10: Install the replacement mirror
- Feed the new wiring connector through the door opening.
- Seat the mirror gasket evenly against the exterior door surface.
- Install all three mounting nuts by hand to prevent cross-threading.
- Use an inch-pound torque wrench with a 10mm socket to tighten the nuts evenly to 9 Nm (80 in-lbs).
- Do not overtighten the nuts. Excess force can distort the mirror base or damage its studs.
Step 11: Route and connect the wiring
- Route the mirror harness through the original clips and guides.
- Keep the wiring clear of the window glass, regulator tracks, and sharp metal edges.
- Push the electrical connector together until its lock clicks.
- Reattach the moisture barrier and press its adhesive edge firmly against the door.
Step 12: Test the mirror before closing the door
- Keep the door panel safely supported and reconnect the necessary window-switch connector.
- Reconnect the negative battery cable with a 10mm socket.
- Switch the ignition to accessory mode.
- Test mirror movement in all four directions.
- Test heat, turn signal, power folding, and memory operation if those features were originally equipped.
- Switch the ignition off and disconnect the negative battery cable again before finishing reassembly.
Step 13: Reinstall the door panel
- Reconnect the interior handle cable and every electrical connector.
- Hang the upper edge of the door panel over the window ledge.
- Align each retaining clip with its corresponding hole.
- Press directly over each clip with your palm until it snaps into place.
- Replace any broken clips instead of forcing the panel to sit flat.
Step 14: Install the screws and trim pieces
- Install the door-panel screws by hand first.
- Use a 7mm socket and inch-pound torque wrench to tighten the panel screws to 2 Nm (18 in-lbs).
- Do not overtighten them because the plastic mounting points can crack.
- Press the door-pull and interior-handle trim covers into place by hand.
- Remove the painter’s masking tape from the exterior door.
Step 15: Reconnect the battery
- Use a 10mm socket to reconnect and secure the negative battery cable.
- Confirm that the terminal cannot rotate by hand.
- Reset the clock or stored preferences if they were lost.
✅ After Repair
- ✅ Test every mirror function again with the engine running.
- 🔄 Move the glass fully up, down, left, and right while listening for binding or clicking.
- 💡 Verify the mirror turn signal and puddle lamp if equipped.
- 🔥 Test mirror heat with the rear-window defogger switched on. Heat may take several minutes to become noticeable.
- 🪟 Operate the window fully to confirm the mirror harness is not contacting the glass or regulator.
- 🚪 Lock and unlock the Canyon, then check mirror memory or folding operation if equipped.
- 👀 Adjust the mirror before driving and confirm that the image remains stable over bumps.
💰 DIY vs Shop Cost
Shop Cost: $250-$650 per side (parts + labor)
DIY Cost: $80-$400 per side (parts only)
You Save: $170-$250 by doing it yourself!
Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.8-1.2 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.










