You can replace a side view mirror yourself in 15 to 30 minutes with basic tools
A broken or damaged side view mirror is a safety issue and often illegal to drive with, depending on your state. The good news is that replacing one is straightforward enough for a homeowner with no mechanical experience. You'll need the new mirror assembly (which you order by your car's year, make, and model), a screwdriver or socket set, and sometimes a trim removal tool. The job involves removing the interior door panel or trim, unbolting the old mirror, disconnecting the wiring if it has power adjustment, and bolting the new one in place.
The exact steps vary slightly depending on whether your mirror is manual or power-operated, and whether your car has the mirror controls on the door panel or the dashboard. This guide walks you through both scenarios so you know what to expect before you start.
Key Takeaways
- Order the correct replacement mirror by your car's year, make, model, and whether it's the driver or passenger side—the wrong one will not fit.
- You will need to remove interior trim or the door panel to access the bolts holding the mirror, which usually takes longer than the actual mirror swap.
- Power mirrors have an electrical connector you must unplug before removing the old mirror and plug into the new one.
- Manual mirrors have no wiring and bolt straight in, making them the faster option if your car has them.
- If the mirror glass is cracked but the frame is intact, you can often replace just the glass insert instead of the whole assembly.
Gather the right mirror and tools before you start
Order your replacement mirror from an auto parts retailer, your car's dealership, or an online supplier. You need the exact year, make, and model of your vehicle, plus whether it's the driver or passenger side. Mirrors are not interchangeable between sides on most cars—the driver's side and passenger's side have different shapes and mounting angles. If you order the wrong one, you'll have to return it and start over.
Check whether your mirror is manual (you move it by hand) or power-operated (it has a motor and adjusts from a switch). Power mirrors cost more but are easier to identify—look for a small switch on your door panel with arrows pointing in four directions. Manual mirrors have no switch at all.
Gather these tools: a screwdriver set (Phillips and flathead), a socket set with a ratchet (usually 8mm, 10mm, or 13mm bolts, depending on your car), a trim removal tool or old credit card, and a flashlight. If your mirror is power-operated, you may also need a panel removal tool to avoid cracking the plastic trim around the door.
Remove the interior door panel or trim to access the mirror bolts
The mirror bolts are on the inside of the door, behind the interior panel or trim. On most cars, you'll need to remove at least part of the door panel to reach them. Some vehicles have a removable trim piece just around the mirror; others require you to take off the entire panel.
Start by rolling down the window and looking for screws or bolts around the edges of the door panel—usually along the bottom, the side near the window, and sometimes near the handle. Use your screwdriver or socket set to remove these fasteners. Once the visible bolts are out, gently pry the panel away from the door using a trim removal tool or old credit card, working from the bottom up. Clips hold the panel in place, and they will pop free with steady, gentle pressure. Do not yank—you can crack the plastic.
Once the panel is loose, disconnect any wiring harnesses plugged into it (usually for power windows or locks). Set the panel aside in a safe place. You should now see the back of the mirror assembly and the bolts holding it to the door frame.
Unbolt the old mirror and disconnect the wiring if it's power-operated
Look at the back of the mirror. You will see three or four bolts (usually 10mm or 13mm) holding it to the door frame. Use your socket set or wrench to remove these bolts. Keep them in a small container so you don't lose them—you'll use the same bolts for the new mirror.
If your mirror is power-operated, you'll see an electrical connector plugged into the back of the mirror assembly. Gently pull this connector straight out before you remove the mirror completely. Do not force it; if it doesn't come free easily, look for a small clip or tab you need to press first.
Once the bolts are out and the wiring is disconnected (if applicable), carefully pull the old mirror away from the door. It may stick slightly due to weatherstripping or sealant, so work it gently side to side as you pull.
Install the new mirror and reconnect the wiring
Position the new mirror against the door frame, aligning the bolt holes. If your mirror is power-operated, plug the electrical connector into the back of the new mirror first—this is easier to do before the mirror is fully bolted in place. Push the connector straight in until you hear or feel a click.
Insert the bolts through the door frame and into the threaded holes on the back of the mirror. Tighten them in a cross pattern (like tightening a car wheel) so the mirror sits evenly. Do not over-tighten; snug is enough. If you have a power mirror, test the adjustment switch before you reinstall the door panel to make sure the motor works.
Check that the mirror is positioned correctly and that the glass sits flush with the door. If it's slightly crooked, loosen the bolts slightly, adjust the mirror, and retighten.
Reinstall the door panel and test the mirror
Reconnect any wiring harnesses you unplugged from the door panel. Line up the panel with the door frame and press it firmly back into place, working from the top down. You should hear the clips snap back into their slots. Once the panel is seated, reinstall all the screws and bolts you removed at the start.
Roll down the window and check that the mirror glass is clean and positioned where you need it. If your mirror is power-operated, test all four directions of the adjustment switch to confirm the motor is working. Check that the mirror does not rattle or move when you tap it gently.
If the mirror glass is fogged or has condensation inside, this is a manufacturing defect in the seal, not something you caused. Contact the supplier for a replacement assembly.
When to replace just the mirror glass instead of the whole assembly
If only the glass is cracked or missing but the frame and mounting hardware are fine, you can often buy a replacement glass insert instead of a whole new mirror. These are cheaper and faster to install—you straightforward pop out the old glass and snap in the new one, usually without removing the door panel.
Check your parts supplier's website or call them with your car's year, make, and model to see if a glass-only replacement is available. Some mirrors have the glass glued in, which makes replacement harder; others have it held in by clips or a frame you can pop out by hand. If you're not sure, ask the supplier before you order.
Frequently Asked Questions
Do I need to remove the entire door panel to replace the mirror?
Not always. Some cars have a removable trim piece just around the mirror that gives you access to the bolts without taking off the whole panel. Check your car's manual or search online for your specific year and model to see which applies to you. If you do need to remove the panel, the job takes longer but is still straightforward.
What if the bolts are stuck or won't come out?
explore penetrating oil (like WD-40) around the bolt heads and let it soak for 15 to 20 minutes. Try again with your socket set, turning slowly and steadily. If a bolt still won't budge, do not force it—you can strip the threads. Stop and consider having a mechanic remove it, especially if the bolt is rusted.
Can I replace a power mirror with a manual one to save money?
Not without extra work. Power and manual mirrors have different mounting brackets and wiring, so you would need to modify the door panel and possibly the electrical system. It's simpler and cheaper to replace a power mirror with another power mirror of the same type.
How do I know if my new mirror is the correct one before I install it?
Compare the bolt hole pattern on the back of the new mirror to the bolt holes on your door frame. They should line up exactly. Also check that the glass is on the correct side (driver or passenger) and that any power adjustment connectors match the wiring in your door.
What if the mirror rattles after I reinstall it?
The bolts may not be tight enough. Remove the door panel again, check that all bolts are snug, and retighten if needed. If it still rattles after that, the bolt holes in the door frame may be stripped, which requires a mechanic to repair.