How a Driver Side Mirror Assembly Works: Benefits, Cost, Price, Installation, Symptoms, Comparison, Pros and Cons, Best Brands, and Maintenance
The driver's side mirror assembly is an essential component of any vehicle. It allows the driver to have a clear view of the road behind them, increasing safety and reducing blind spots. In this article, we will take an in-depth look at how a driver side mirror assembly works, its benefits, cost and price, installation process, symptoms of a faulty assembly, comparison with other types of mirrors, pros and cons, best brands in the market, and maintenance tips to keep it in top condition.
How a Driver Side Mirror Assembly Works
The driver side mirror assembly is made up of several parts that work together to provide a clear view of the rear of the vehicle. These include the mirror glass, housing, motor, and control switch.
Mirror Glass
The mirror glass is the most visible part of the assembly, and it is responsible for reflecting the image of the road behind the vehicle. It is typically made of glass or plastic and can be either flat or convex. Flat mirrors provide a true representation of the objects behind the vehicle, while convex mirrors provide a wider view but can distort the size and distance of objects.
Housing
The housing is the frame that holds the mirror glass in place. It can be made of plastic, metal, or a combination of both. The housing is designed to be aerodynamic and resistant to weather elements, such as rain and wind, to ensure the mirror glass remains clear and visible at all times.
Motor
The motor is the mechanism that allows the driver to adjust the angle of the mirror glass from inside the vehicle. It is usually controlled by a switch on the driver's side door panel. The motor can be electric or manual, depending on the make and model of the vehicle.

Control Switch
The control switch is the interface between the driver and the mirror assembly. It allows the driver to adjust the angle of the mirror glass to their desired position. It can be a simple joystick or a more advanced control panel with multiple buttons for different mirror adjustments.
When the driver adjusts the control switch, it sends a signal to the motor, which then moves the mirror glass in the desired direction. This allows the driver to have a clear view of the rear of the vehicle without having to physically turn their head or adjust the position of their body.
Benefits of a Driver Side Mirror Assembly
There are several benefits to having a driver side mirror assembly in your vehicle:
- Increased safety: The mirror assembly provides a clear view of the road behind the vehicle, reducing blind spots and increasing safety.
- Better visibility: The mirror assembly can be adjusted to provide a better view of the road behind the vehicle, making it easier to see and anticipate any potential hazards.
- Convenience: The mirror assembly can be adjusted from inside the vehicle, making it more convenient for the driver to have a clear view without having to physically turn their head.
- Legal requirement: In most countries, it is a legal requirement to have a driver side mirror assembly on all vehicles.
Cost and Price of a Driver Side Mirror Assembly
The cost and price of a driver side mirror assembly can vary depending on the make and model of the vehicle and the brand of the assembly. On average, a driver side mirror assembly can cost anywhere from $50 to $500. Some luxury vehicles may even have mirror assemblies that cost upwards of $1000.
The price can also vary depending on whether you are buying an OEM (original equipment manufacturer) or aftermarket mirror assembly. OEM mirror assemblies are made by the same manufacturer as the vehicle and are considered to be of higher quality but come at a higher price. Aftermarket mirror assemblies are made by third-party manufacturers and are often cheaper but may not have the same level of quality as OEM assemblies.
Installation Process
The installation process of a driver side mirror assembly can vary depending on the make and model of the vehicle. In most cases, it involves removing the old assembly and replacing it with the new one. This process may require some tools and basic mechanical knowledge.
If you are not confident in your ability to install a driver side mirror assembly, it is recommended to take your vehicle to a certified mechanic or dealership for professional installation.
Symptoms of a Faulty Driver Side Mirror Assembly
Like any other component of a vehicle, the driver side mirror assembly can develop faults over time. Some common symptoms of a faulty assembly include:
- Cracked or broken mirror glass
- Inability to adjust the mirror angle
- Loose or damaged housing
- Malfunctioning control switch
- Excessive vibration of the mirror while driving
If you notice any of these symptoms, it is important to have your mirror assembly inspected and repaired or replaced if necessary to ensure your safety on the road.
Comparison with Other Types of Mirrors
While the driver side mirror assembly is the most common type of mirror in vehicles, there are other types of mirrors that serve different purposes and have their own benefits and drawbacks.
Rearview Mirror
The rearview mirror is a smaller mirror located on the inside of the windshield, directly above the dashboard. It provides a view of the road behind the vehicle and is often used in conjunction with the driver side mirror assembly to eliminate blind spots.
The benefits of a rearview mirror include its compact size and ability to provide a wide view of the road behind the vehicle. However, it can also be limited in its view and may not provide a clear image in certain lighting conditions.
Blind Spot Mirror
A blind spot mirror is a small, convex mirror that is attached to the driver side mirror assembly. It is designed to provide a wider view of the road and eliminate blind spots.
The benefit of a blind spot mirror is its ability to provide a wider view of the road, increasing safety. However, it can also distort the size and distance of objects, making it less accurate than the driver side mirror assembly.
Backup Camera
A backup camera is a camera located on the rear of the vehicle, typically above the license plate, that provides a live video feed of the area behind the vehicle. It is often used in conjunction with the driver side mirror assembly to improve visibility while reversing.
The benefits of a backup camera include its ability to provide a clear, live view of the area behind the vehicle, eliminating blind spots. However, it can be expensive to install and may not be available on all vehicles.
Pros and Cons of a Driver Side Mirror Assembly
Pros
- Provides a clear view of the road behind the vehicle
- Can be adjusted to improve visibility
- Convenient to use
- Increases safety
- Can be replaced if damaged
Cons
- Can be expensive to replace
- May develop faults over time
- May require professional installation
- Can be a target for theft or vandalism
- May be limited in its view in certain lighting conditions
Best Brands in the Market
When it comes to choosing a driver side mirror assembly, it is important to invest in a reputable brand that offers high-quality products. Some of the best brands in the market include:
- Depo
- Dorman
- TYC
- Kool Vue
- Mirror Glass Plus
It is recommended to do some research and read reviews before purchasing a driver side mirror assembly to ensure you are getting the best product for your money.
Maintenance Tips for a Driver Side Mirror Assembly
To keep your driver side mirror assembly in top condition, it is important to perform regular maintenance. Some tips to help maintain your mirror assembly include:
- Inspect the mirror regularly for any cracks or damage
- Keep the mirror glass clean and free of debris
- Ensure the control switch is working properly
- Replace any damaged or malfunctioning parts
- Protect the mirror from extreme weather conditions
By following these maintenance tips, you can prolong the life of your driver side mirror assembly and ensure it continues to provide a clear view of the road behind your vehicle.