STEPS to Eliminate BLIND SPOTS while driving (by adjusting rear-view and side mirrors) -
- Adjust the rear-view mirror to give you a view directly to the rear. Position it so that it best covers your view straight out of the rear window. Don't bother tilting it to one side or the other to assist with your view of traffic to either side of your car. That's what the side mirrors are for.
- Lean your head until it almost touches the driver's side window. Then, adjust your left side mirrors so that you can just barely see the side of your car, and no more than that
- Lean your head to the right towards the middle of the car and adjust the right side mirror so that you can just barely see the right side of your car. You should NOT be able to see the side of your car when your head is perfectly upright.
- Check for blind spots by doing this: While driving along a four-lane road in the right lane, note a vehicle in the left lane coming up to pass you from behind. Without moving your head, glance in the rear-view mirror and follow it as it approaches your car in the left lane. Just before it disappears from your view in the rear-view mirror, glance to the left side mirror. There it is. Now follow that vehicle in the side mirror as it begins to pass you. Then, just before it disappears from the side mirror, you should see it with your peripheral vision. Notice that without even turning your head, you never had a blind-spot. Then try it with the right side mirror. Watch as you pass a vehicle travelling in the right lane go from your peripheral vision, to your right side mirror, to your rear-view mirror. Again, no blind-spot. If there is a blind spot for even a fraction of a second, your side mirror adjustment needs some fine-tuning.
This process should be repeated every time you get into a car in which you have not adjusted the mirrors.
Side mirrors should be used when changing lanes, instead of relying on turning your heads and looking over your shoulder. Make sure they are set or adjusted properly - resulting in eliminating any blind spots.
Benefits:
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With the mirrors adjusted properly, a shoulder check to change lanes becomes more of a "shoulder peek", meaning you don't have to turn your head so far. That means your peripheral vision will still provide a view in front of you - no "blind spot" in front of you either, meaning less chance of rear-ending a vehicle that has suddenly stopped.
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As a side benefit, with the side mirrors tilted out farther, you will no longer have to worry about the bright lights of a vehicle behind you glaring in your eyes.
Precautions:
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It may take a little while to feel comfortable with not being able to see the side of your own car in the side mirrors (if you really need to see it every now and then, just tilt your head a little!).
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Also, it may take a little time to stop relying on the side mirrors for looking to the rear. But once you get used to it, you'll love it. You'll feel much more confident and comfortable in traffic.
Other types of Blind Spots:
Blue car can see Green car (not in blind spot) but not Red car (in blind spot):

Pillar Blind Spots:

Courtsey: Wisc.edu, Wikipedia.org, Gov.on.ca