Power mirrors in modern cars are a convenient feature that allows drivers to adjust side mirrors electronically. However, these mirrors can sometimes malfunction, causing frustration for drivers. Whether the mirror doesn’t adjust, responds slowly, or has stopped working altogether, it’s important to understand how to fix power mirrors in your car without the need for costly mechanic visits. In this guide, we’ll walk you through common problems and solutions, helping you restore the function of your car’s power mirrors with ease.
2. Understanding the Common Issues with Power Mirrors

Power mirrors can experience various issues due to wear and tear, electrical faults, or even environmental damage. Before you begin the repair process, it’s crucial to diagnose the exact problem. Some common issues include:
- The mirror doesn’t move at all when pressing the adjustment switch.
- The mirror moves in one direction but not the other.
- The mirror motor makes noise but doesn’t move the mirror.
- The mirror vibrates excessively while driving.
Once you’ve identified the issue, you can move forward with the appropriate fix.
3. Diagnosing the Power Mirror Problem
The first step in fixing a malfunctioning power mirror is diagnosing the problem. Start by checking the following components:
- Mirror Switch: The switch used to adjust the mirror could be faulty or disconnected.
- Mirror Motor: If the motor that powers the mirror is malfunctioning, it won’t respond to the controls.
- Wiring and Fuses: Loose connections or blown fuses can prevent the mirror from working correctly.
- Mirror Glass: Sometimes, the glass can become loose or dislodged, affecting the mirror’s function.
Performing a quick inspection of these areas can help you identify what needs to be repaired.
4. How to Fix Power Mirrors in Your Car
Once you have diagnosed the problem, follow these steps to fix your car’s power mirrors:
Fixing a Faulty Power Mirror Switch
If the mirror switch is the problem, it may be worn out or have dirty contacts. Here’s how to clean or replace the switch:

- Tools needed: Screwdriver, electrical contact cleaner, replacement switch (if necessary).
- Steps:
- Remove the switch panel by prying it off with a screwdriver.
- Disconnect the switch from the wiring harness.
- Use an electrical contact cleaner to clean any debris or dirt from the switch connections.
- Reconnect the switch and test the mirror.
- If cleaning doesn’t work, replace the switch with a new one and test the mirror again.
Replacing a Malfunctioning Mirror Motor
If the mirror motor is making noise but not moving, it may need to be replaced. Here’s how to replace it:
- Tools needed: Screwdriver, replacement mirror motor.
- Steps:
- Remove the mirror housing cover by unscrewing the panel.
- Locate the mirror motor inside the housing.
- Disconnect the old motor and replace it with the new one.
- Reattach the mirror housing cover and test the mirror.
Fixing Loose Wiring or Blown Fuses
If the wiring or fuses are the issue, follow these steps:
- Tools needed: Fuse puller, multimeter, replacement fuses.
- Steps:
- Check your car’s manual to locate the fuse box and identify the mirror fuse.
- Use a fuse puller to remove the fuse and inspect it for damage.
- If the fuse is blown, replace it with one of the same amperage.
- If the wiring is loose, locate the mirror’s electrical wiring behind the door panel and reconnect any loose wires.
- Test the mirror to ensure it works.
Adjusting or Replacing the Mirror Glass

If the mirror glass is loose or broken, it can impact visibility and mirror adjustment. Here’s how to fix it:
- Tools needed: Adhesive, replacement mirror glass.
- Steps:
- If the glass is loose, apply a strong adhesive to secure it in place.
- If the glass is broken, remove the old glass and attach a new one using adhesive.
- Allow the adhesive to set before adjusting the mirror.
5. Maintaining Your Power Mirrors
Regular maintenance can prevent future issues with your car’s power mirrors. Here are a few tips:
- Clean the mirror switch and contacts regularly to prevent dust buildup.
- Ensure the mirror glass is securely attached and not loose.
- Avoid using excessive force when adjusting the mirrors manually, as this can damage the motor.
- Check the wiring and fuses periodically to ensure they are in good condition.
6. When to Seek Professional Help
While most power mirror issues can be fixed at home, there are times when professional help is necessary. If you’ve tried troubleshooting the problem and your mirrors still aren’t working, it’s possible there’s a deeper electrical issue or a problem with the mirror’s control module. In these cases, it’s best to consult a mechanic.
Conclusion
Fixing power mirrors in your car may seem like a daunting task, but with the right tools and instructions, it’s a manageable process. Whether you’re dealing with a faulty switch, a damaged motor, or loose wiring, understanding how to diagnose and repair common issues will save you time and money. Keeping your mirrors in good working order ensures optimal visibility, contributing to safer driving experiences.