What happens when a side mirror breaks, and what your options are

A side view mirror can break in several ways: the glass cracks or shatters, the mirror housing gets dented or cracked, the mirror motor stops working (on power mirrors), or the mirror arm bends. The repair path depends on what part failed and whether you want to fix it yourself or have a shop do it.

For a cracked mirror glass only, you can often replace just the glass panel without replacing the whole mirror assembly — this is the cheapest option. If the housing is damaged, the motor is broken, or the arm is bent, you'll need to replace the entire mirror unit. Some repairs take 30 minutes at home; others require a shop visit and can take a few hours.

Key Takeaways

  • Mirror glass alone costs $15 to $50 and takes 10 to 20 minutes to replace if you're comfortable prying plastic clips; a full mirror assembly costs $150 to $400 depending on your vehicle.
  • Power mirror motors can fail independently of the glass or housing, and replacing just the motor costs less than replacing the whole assembly if your shop can source the part separately.
  • A bent mirror arm usually means replacing the entire mirror unit, because straightening it risks cracking the glass or breaking the motor.
  • Dealership parts and labor are typically 30 to 50 percent more expensive than independent repair shops or aftermarket parts.
  • Insurance may cover mirror damage under collision or comprehensive coverage, though your deductible might make a claim not worth filing for a single mirror.

Replacing just the mirror glass

If only the glass is cracked or shattered, you can buy a replacement glass panel for $15 to $50 depending on your vehicle make and model. The glass slides or clips into the mirror housing from the back or side. You'll need to pry off the mirror housing cover (usually plastic clips that pop out), slide the old glass out, and slide the new one in, then snap the cover back on.

The exact steps vary by vehicle — some mirrors have the glass held by a single clip, others by three or four. Search your vehicle's year, make, and model plus "side mirror glass replacement" on YouTube to see the specific clips and how much force they need. Most people can do this in 10 to 20 minutes without tools beyond a plastic pry tool or old credit card to avoid scratching the housing.

Aftermarket glass panels are cheaper than OEM (original equipment manufacturer) glass from the dealership, and they fit the same way. The trade-off is that aftermarket glass may not have the exact same tint or reflective properties, though most people don't notice the difference.

Replacing the entire mirror assembly

If the mirror housing is cracked, the motor is dead, or the arm is bent, you need to replace the whole mirror unit. A new assembly costs $150 to $400 for an aftermarket part, or $250 to $600 for an OEM part from the dealership, depending on whether it's a manual or power mirror and what features it has (heating, turn signal, blind-spot camera, etc.).

The mirror bolts to the door frame from inside the door or from the door panel. You'll need to remove the door panel (or access panel if it's inside the door), unplug any electrical connectors for power mirrors or heated mirrors, unbolt the mirror, and bolt the new one on. This takes 30 minutes to an hour if you're comfortable with basic tools and removing panels. If you're not, a shop will charge $100 to $200 in labor on top of the part cost.

Dealership shops will install only OEM parts, while independent shops usually offer both OEM and aftermarket options. Aftermarket mirrors are made by third-party manufacturers and fit your vehicle the same way, but they may have slightly different build quality or warranty coverage. Most aftermarket mirrors come with a one-year warranty; OEM parts usually come with the dealership's warranty.

Power mirror motor failure

On power mirrors, the motor can fail while the glass and housing are fine. The mirror won't move when you press the adjustment buttons, even though you hear the motor trying to work (or you hear nothing at all). Some repair shops can replace just the motor without replacing the whole assembly, which costs $80 to $150 in parts plus labor.

However, not all shops stock individual motors — many will tell you that you have to replace the whole mirror. If you want to try the motor-only route, call ahead and ask whether they can source a replacement motor for your specific vehicle. Independent shops are more likely to do this than dealerships, because they work with multiple parts suppliers.

Before paying for a motor replacement, check whether the mirror adjustment switch itself is broken. If the switch is stuck or damaged, the motor is fine but the signal never reaches it. A new switch costs $20 to $60 and takes 15 minutes to replace.

Bent mirror arm or housing damage

A bent arm — the metal or plastic piece that holds the mirror away from the door — usually can't be straightened without risk. Bending it back can crack the glass, break the motor, or damage the electrical connectors. The safer and more reliable option is to replace the entire mirror assembly.

If the housing is cracked but the glass and motor still work, you can sometimes buy just a replacement housing shell for $40 to $80 and transfer the glass and motor into it. This works if the cracks are cosmetic and not affecting the motor or glass seal. Again, search your vehicle's year, make, and model plus "mirror housing" to see whether this part is sold separately for your car.

Doing the repair yourself versus using a shop

Replacing mirror glass is a good DIY job if you're comfortable prying plastic clips without breaking them. Replacing the entire mirror assembly requires removing the door panel and working with bolts and electrical connectors, which is more involved but still doable for someone with basic mechanical confidence. If you've never removed a door panel before, a shop is the safer choice.

A shop will charge $100 to $300 in labor depending on the repair complexity and your location. Independent shops typically charge less than dealerships. If you buy the part yourself and bring it to a shop, some will install it for a flat labor fee (usually $75 to $150); others require you to buy the part from them. Always ask about labor cost before you commit.

If you do the work yourself, you'll save the labor cost but you'll spend time and risk damaging something if you slip with a tool or force a clip too hard. Weigh the money saved against the time and risk for your situation.

Insurance and when to file a claim

Mirror damage is usually covered under collision coverage (if another vehicle hit you) or comprehensive coverage (if weather, vandalism, or an object hit you). Your deductible applies — if your deductible is $500 and a mirror repair costs $250, filing a claim won't pay out anything. If the repair costs $600, you'd get $100 after your deductible.

Filing a claim also raises your insurance rates for three to five years, even if it's not your fault. For a single mirror, the cost of the rate increase often exceeds what you'd save by using insurance. Call your insurance company and ask what the repair would cost you out-of-pocket, then compare that to the deductible and the estimated rate increase. Many people find it cheaper to pay for a mirror repair themselves.

If another person's vehicle hit your mirror and you have their insurance information, you can file a claim with their insurance instead of yours. Their insurance pays, and your rates don't go up.

Frequently Asked Questions

Can I drive with a broken side mirror?

Most states require both side mirrors to be present and functional, so driving with a missing or severely damaged mirror is illegal. A cracked mirror glass that still reflects is usually legal, but check your state's specific rules. A broken power mirror that won't adjust is also typically legal as long as the glass is intact.

How long does a mirror repair take at a shop?

Glass-only replacement takes 30 minutes to an hour. Full mirror assembly replacement takes one to two hours, depending on whether the shop has the part in stock and how straightforward the door panel is to remove on your vehicle. Call ahead to ask whether they have your specific mirror in stock; if they don't, add a day or two for ordering.

Is an aftermarket mirror as good as an OEM mirror?

Aftermarket mirrors fit and function the same way as OEM mirrors. The difference is usually in build quality and warranty length. OEM mirrors are made by the vehicle manufacturer and typically have longer warranties. Aftermarket mirrors are made by third parties and may have shorter warranties, but they're also significantly cheaper. Most people don't notice a difference in everyday use.

What if my mirror is stuck and won't adjust?

Check whether the adjustment switch is working by listening for a clicking sound when you press it. If you hear nothing, the switch may be broken. If you hear clicking but the mirror doesn't move, the motor is likely broken. A broken switch costs $20 to $60 to replace; a broken motor costs $80 to $150 in parts.

Do I need to replace both mirrors if one breaks?

No. You only need to replace the mirror that's damaged. Replacing both is unnecessary unless you want them to match exactly (for example, if one is older and has a slightly different tint). Most people replace only the broken one.