Learning how to set car mirrors correctly is a fundamental skill for every driver. Properly adjusted mirrors eliminate blind spots and create a seamless view around your vehicle for safer lane changes. Many drivers simply point their mirrors at the side of their own car, but this method leaves dangerous areas you cannot see. This guide will walk you through the correct, safe techniques for adjusting all your mirrors.
You will need to adjust your seating position first. A proper driving posture is the foundation for correct mirror alignment. Take a moment to get comfortable before you start adjusting any glass.
How To Set Car Mirrors
The traditional method of setting mirrors leaves significant blind spots. We will cover the best practice technique that gives you the widest possible field of view. This method requires a slight shift in what you expect to see in your mirrors.
Preparing Your Driving Position
Your mirrors are set relative to your eyes. If your seat is too high, low, far, or close, your mirror adjustments will be off. Follow these steps to ensure you are positioned correctly before touching a single mirror control.
- Sit in the driver’s seat and press the brake pedal fully. Your right leg should have a slight bend at the knee when the pedal is fully depressed.
- Adjust the seat distance so you can comfortably rest your wrists on the top of the steering wheel without your shoulders leaving the seatback.
- Set the seatback angle so you can maintain contact between your back and the seat while holding the wheel at the 9 and 3 o’clock positions.
- Adjust the seat height, if available, to give you a clear view over the steering wheel and hood. You should be able to see the road about 12-15 feet in front of the car.
- Finally, set your headrest so the middle of it aligns with the middle of the back of your head. This is a critical safety step often overlooked.
Adjusting The Rearview Mirror
The interior rearview mirror is your primary tool for seeing directly behind your vehicle. It’s the first mirror you should set, as it helps anchor your perspective for the side mirrors.
- Ensure the mirror is in the day setting, not the night anti-glare setting.
- Look straight ahead through your windshield, then without moving your head, glance up at the mirror.
- Adjust the mirror so the center of the rear windshield fills the entire mirror glass. You should be able to see directly out the middle of your back window with minimal effort.
- The goal is to use only your eyes, not your head, to check this mirror. You should see the horizon line in the center of the mirror for a good reference point.
Common Rearview Mirror Mistakes
- Adjusting it to see the side of your own face or the passenger seat.
- Having it tilted too high, showing mostly the sky, or too low, showing mostly the rear seat.
- Forgetting to flip it back from the night setting after dark has passed.
Setting The Driver Side Mirror
This is where the safe technique diverges from common habit. You should not see the side of your own car in this mirror when it is properly set. This feels strange at first but is much safer.
- Lean your head until it touches the driver’s side window. You can rest your head against the glass.
- While in this position, adjust the driver’s side mirror outward until you can just barely see the rear corner of your own car. This might be just the edge of the rear fender or door handle.
- Now, sit back up in your normal driving position. In this position, you should no longer see the side of your car at all. The mirror will be pointing much farther outward.
- When you check this mirror from your normal posture, you will see the lane next to you. A car passing you will move from your rearview mirror into your side mirror before entering your peripheral vision.
Setting The Passenger Side Mirror
The process for the passenger mirror is similar but requires you to lean the opposite direction. Because this mirror is farther away, its adjustment is crucial for covering the blind spot on that side.
- Lean your head to the right, centering it between the front seats. Try to position your head where it would be if you were in the center console area.
- While leaning, adjust the passenger side mirror outward until, again, you can just barely see the rear corner of your vehicle.
- Return to your normal driving position. The side of your car should now be invisible in this mirror as well.
- Test this by watching a car pass you on the right. It should transition smoothly from the rearview mirror to the passenger side mirror to your peripheral view without disappearing.
Verifying Your Mirror Adjustments
After setting all three mirrors, you need to confirm they work together as a system. This verification step ensures you have truly minimized your blind spots.
- While parked safely, watch a car approach from behind in your rearview mirror.
- As it passes you on the left, it should move from the rearview mirror into the driver’s side mirror.
- As it leaves the driver’s side mirror, you should see it in your peripheral vision out the side window. There should be no gap or “disappearing” moment.
- Repeat this mental exercise for a car passing on the right, moving from rearview to passenger side mirror to peripheral vision.
Special Considerations And Additional Tips
Different vehicles and driving scenarios require slight adjustments to the standard method. Here’s how to adapt for common situations.
Adjusting Mirrors In A Truck Or SUV
Higher seating positions and larger vehicles change sight lines. The basic principles remain the same, but your reference points will differ. You may need to adjust mirrors downward slightly more to see cars that are closer to your bumper. The large size can create bigger blind spots directly behind and along the sides, making proper adjustment even more critical.
Setting Mirrors For Towing
When towing a trailer, your mirrors must be extended to see around it. Many modern trucks have extendable tow mirrors. Adjust them so you can see the entire width of your trailer and a significant portion of the lane beside it. You should always see the rear corners of your trailer in the side mirrors. This ensures you can monitor both the trailer and adjacent traffic.
Using Automatic And Heated Mirrors
Many cars have power mirrors with memory functions. Use the memory settings to save your ideal mirror position, especially if multiple people drive the vehicle. Heated mirrors are excellent for defogging in humid or cold weather, but remember they are for clearing condensation, not thick ice. Always clear ice manually to avoid damaging the heating element.
Night Driving And Glare Reduction
Use the manual night setting on your rearview mirror to dim headlight glare from cars behind you. Most side mirrors do not have this feature, but some are equipped with an auto-dimming function. If glare from a side mirror is a problem, you can slightly adjust its angle temporarily until the bright lights have passed. Just remember to readjust it afterward.
Frequently Asked Questions
How Often Should I Readjust My Car Mirrors?
You should check your mirror settings every time a different driver uses the car, or if your seat has been moved significantly. It’s also a good habit to do a quick verification check once a month, as vibrations from driving can slowly shift mirror positions over time.
What Is The Blind Spot And How Do Mirrors Eliminate It?
A blind spot is an area around your vehicle that you cannot see using your mirrors or by looking forward. The adjustment method described here, often called the “Blind Spot Elimination” or “SAE” method, overlaps the fields of view from your three mirrors to cover these areas, so a car is always visible in at least one mirror as it moves around you.
Can I Still See The Side Of My Car With The Correct Mirror Settings?
No, and that’s the point. When sitting in your normal driving position, you should not see the side of your own car in the side mirrors. If you need to see your car’s side for parking, you can lean your head slightly toward the window. For normal driving, the mirrors are for seeing other traffic, not your own vehicle.
Do Blind Spot Monitoring Systems Replace Proper Mirror Adjustment?
No, they are a supplement, not a replacement. Blind spot monitoring systems are excellent secondary tools that provide a visual or audible alert. However, you should not rely on them solely. They can fail, or they may not detect motorcycles, bicycles, or fast-approaching vehicles. Properly set mirrors are your primary and most reliable defense against blind spot accidents.
How Do I Adjust Manual Mirrors Without A Helper?
Adjusting manual, non-powered mirrors from the driver’s seat can be tricky. The best method is to park next to a familiar object, like a fence line or parking line. Get out and set the mirror to a rough position where you think it should be. Then get back in, check the view, and repeat the process until it’s correct. It takes patience but is certainly doable.
Taking the time to learn how to set car mirrors the right way is one of the simplest and most effective safety upgrades you can make. It costs nothing and takes only a few minutes. The initial feeling of not seeing your own car will fade quickly, replaced by the confidence of knowing what is in the lanes beside and behind you. Make it a part of your regular vehicle check-up routine, and you’ll drive with greater awareness and security on every trip.