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What You Need to Know About Semi-Truck Blind Spots

Posted on February 28, 2022 in

Due to their size, semi-trucks have many blind spots that are significantly larger than passenger vehicles. Also referred to as “No Zones,” these blind spots extend to the front, back, and both sides of the truck. As a result, truck drivers and other road users must take great care to avoid a blind spot accident.

semi truck blind spots

The 4 Major Semi-Truck Blind Spots

There are four significant blind spots on semi-trucks:

Left Side Under Mirror and Extending Back

Visibility is challenging from the driver’s door toward the back of the truck. Any vehicle in the left lane behind the driver’s door is not visible.

Right Side Under Mirror and Extending Back

Similar to the left side, from the right side of the semi’s cab, towards the back is a large blind spot. Vehicles traveling in one or two lanes over from the right of the truck and behind the cab may not be visible in the driver’s side mirror. 

Front of Truck (20+ Feet)

Keep in mind when driving ahead of a semi-truck that the driver cannot see vehicles within the 20 feet zone immediately in front of the vehicle. Since trucks need more time to slow down and stop, driving directly in front of it can be dangerous.

Behind the Truck (30+ Feet)

There is a significant blind spot of 30 or more feet behind the truck. Be careful driving too close. As a good rule of thumb, if you cannot see the truck driver in their side mirror, they cannot see you either.

One significant factor in why semi-trucks have larger blind spots than passenger vehicles is their lack of rearview mirrors. Without them, they are not able to see their surroundings as well as cars do. Other factors include their height and length. The longer the truck, the larger the blind spot. 

Side-View Assist

Some modern trucking companies have integrated technology, such camera systems, to assist with visibility but not all. For example, backup cameras and side-mirror cameras can offer trucks greater control and reduce the risk of a collision.

How to Share the Road Safely

Here are some safety tips to help you avoid a blind spot accident:

  • Be patient and keep in mind that trucks can only move so fast.
  • Keep your distance as trucks need extra space to make turns.
  • If you can’t see a truck’s mirrors, the driver can’t see you.
  • Always use your signals when passing a truck to allow the driver to see your intentions and adjust accordingly.
  • Before passing, make sure you can see the truck driver in their side mirror and try to pass on the left while maintaining your speed. It is easier for the driver to see you on the left side.
  • Avoid distractions that take your focus off of where the semi-truck is on the roadway.
  • Lower your vehicle’s high beams anytime you see an oncoming truck approaching you on the road. The bright light can impair the truck driver’s visibility.

If you or a loved one has been involved in a truck accident and need help with your case, speak to a skilled Mount Juliet truck accident lawyer today. We offer free consultations; call (615) 622-6060 or send us a request online.