You should always check your gauges, seat belt, and mirrors after you start your car.
Even with well-placed mirrors, one should always check for vehicles before changing lanes. However, one can find tips for setting car mirrors on the websites of Car and Driver, Car Talk, and Life Hacker.
Whenever you are adjusting your seat you must check all mirrors in your car. If you don't have a clear view in the mirrors, then you must adjust them before you start driving. Always!
I suggest you to check whenever you have time like when the car in front of you is slow, when you are waiting for traffic lights, or when turning the car.
Any mirrors in a car should be set for the benefit of the driver, not for any passengers.
Any mirrors in a car should be set for the benefit of the driver, not for any passengers.
True
Check your mirrors and signal your intentions.
You should check your mirrors every 8-10 seconds and when entering a road way, changing lanes etc. You should also have your mirrors adjusted properly so you do not have to look over your shoulder to check them. There is no blind spot on a car. Move your mirror out, you'll see more stuff. There is info online about how to adjust your mirror so you don't have a blind spot. Once you do that, scan them often. What is the point of a mirror if you don't use it? edit: The guy that originally posted this is not correct. You should indeed check your mirrors every 8-10 seconds to see everything happening around you but there is no way to adjust the mirrors to eliminate the blind spot. You need special mirrors to eliminate the blind spot.
Once every 10 to 15 seconds
Every 5 to 7 seconds.
A driver always need a mirrors for driving because they can look at back of the car and for turning right or left. constance's answer