Truck Blind Spot Accidents

Understanding No-Zones: The Danger Areas Around Commercial Trucks

Every commercial truck on Michigan's highways carries with it four large areas where the driver cannot see other vehicles. The Federal Highway Administration calls these areas "no-zones," and they are responsible for thousands of serious crashes across the country each year. A fully loaded semi-truck can measure 70 to 80 feet in length, stand over 13 feet tall, and weigh up to 80,000 pounds. Unlike passenger vehicles, these trucks have no rearview mirror providing a clear line of sight behind the cab. The result is a set of blind spots that dwarf anything a typical car driver would experience.

The four no-zones around a commercial truck are:

• Front no-zone: Extends approximately 20 feet ahead of the truck's cab. Because of the elevated driving position and the length of the hood, a truck driver cannot see vehicles that cut in too closely after passing.
• Rear no-zone: Extends roughly 30 feet behind the trailer. With no rearview mirror and a solid trailer wall blocking any view, a truck driver is completely blind to vehicles tailgating directly behind.
• Left-side no-zone: Runs along the driver's side from the cab rearward, extending approximately one lane width. Though smaller than the right-side blind spot, it remains a significant hazard during lane changes.
• Right-side no-zone: The largest and most dangerous blind spot, extending outward approximately two full lanes from the truck's right side and running the entire length of the trailer. This zone is where the majority of fatal blind spot crashes occur.

Why Trucks Have Such Massive Blind Spots

The sheer physical dimensions of a commercial truck create blind spots that are fundamentally different from those in passenger cars. A sedan driver can glance at a rearview mirror and see what is directly behind them. A truck driver has no such option. The trailer blocks any rearward view entirely, leaving the driver dependent on side mirrors alone. The elevated cab position means the driver sits eight to ten feet off the ground, creating a steep downward angle that makes nearby, lower-riding vehicles invisible. The length of the trailer means that even properly adjusted side mirrors cannot capture every vehicle traveling alongside.

Driver Responsibility: Blind Spots Do Not Excuse Negligence

The existence of blind spots does not relieve a truck driver of the duty to operate their vehicle safely. Every holder of a Commercial Driver's License (CDL) receives extensive training on blind spot awareness and mirror usage. CDL training programs specifically require drivers to develop systematic mirror-checking habits before every lane change, turn, or merge. Federal Motor Carrier Safety Administration (FMCSA) regulations mandate that all commercial vehicles be equipped with two exterior mirrors on each side, positioned to provide the maximum possible field of view.

A professional truck driver is expected to:

• Check all mirrors every five to eight seconds while driving
• Perform a complete mirror check before initiating any lane change
• Signal lane changes well in advance to alert surrounding traffic
• Avoid changing lanes in intersections, construction zones, or other high-risk areas
• Account for vehicles that may have entered a blind spot since the last mirror check

When a truck driver fails to follow these protocols, the blind spot becomes a contributing factor to the crash rather than an excuse for causing one.

Modern Technology and the Duty to Equip

Today's trucking industry has access to technology that can substantially reduce blind spot risks. Radar-based blind spot detection systems alert the driver when a vehicle enters a no-zone. Side-mounted cameras feed live video to in-cab monitors, giving drivers visibility that mirrors alone cannot provide. Automatic lane departure warning systems can detect when a truck begins drifting without a turn signal activated. Cross-traffic alert systems warn of vehicles approaching from the sides during turns or merges.

Trucking companies have a legal duty to maintain their vehicles in a reasonably safe condition. When affordable, proven safety technology exists and a carrier chooses not to install it, that decision can become evidence of negligence. A fleet operator who saves a few hundred dollars per truck by skipping blind spot cameras may face significant liability when that choice contributes to a preventable crash.

Common Blind Spot Crash Scenarios

Blind spot accidents tend to follow recognizable patterns:

• Lane change into an occupied lane: The truck driver initiates a lane change without detecting a vehicle already traveling alongside. The car is struck and pushed sideways, often into another lane of traffic or off the road entirely.
• Right-turn squeeze: A truck initiates a wide right turn, and a smaller vehicle positioned alongside the truck's right side is caught between the turning trailer and the curb. These crashes can result in the car being crushed or pulled underneath the trailer.
• Merge without checking: A truck enters a highway from an on-ramp or merges from a lane ending without verifying the target lane is clear, forcing other vehicles into evasive maneuvers or direct contact.
• Drifting within a lane: A truck gradually moves toward the lane line, sideswiping a vehicle traveling in the adjacent lane that the driver never saw.

Blind Spot Dangers on Michigan's Interstates

Michigan's highway system carries an enormous volume of commercial truck traffic. Interstate 94 serves as a primary freight corridor connecting Detroit to Chicago, with heavy semi-truck traffic throughout Oakland, Washtenaw, and Wayne counties. Interstate 696, which runs through Southfield and connects I-96 to I-94, funnels commercial vehicles through densely populated suburban areas where lane changes are frequent and traffic congestion forces cars and trucks into close proximity. Interstate 275, linking I-75 to I-94 through western Wayne and Monroe counties, carries steady streams of freight traffic that create constant blind spot exposure for commuters.

The high traffic density on these corridors means that a truck driver who fails to check mirrors before a lane change is almost certainly going to encounter another vehicle in the space they are moving into.

Michigan's Comparative Fault System and Blind Spot Cases

Michigan follows a modified comparative fault standard under MCL 600.2959. This means that an injured person's compensation is reduced by their percentage of fault, and if they are found more than 50 percent at fault, they recover nothing for non-economic damages. In blind spot cases, the trucking company's insurance carrier will almost always argue that the injured driver was comparatively at fault for positioning their vehicle in the truck's blind spot or for failing to pass quickly enough.

However, simply being located in a truck's blind spot does not constitute negligence. Drivers on Michigan's highways have every right to travel in any lane, and the responsibility to change lanes safely always rests with the driver initiating the maneuver. A truck driver who moves into an occupied lane bears the fault for that decision, regardless of whether the other vehicle was in a no-zone at the time.

Proving Fault in a Blind Spot Crash

Establishing liability in a truck blind spot case often depends on the following evidence:

• Dashcam footage: Video from the injured driver's vehicle or from nearby cars can show the truck changing lanes without signaling or checking mirrors.
• Witness testimony: Other drivers who observed the truck's behavior before the crash can confirm whether the truck signaled, drifted gradually, or moved suddenly.
• Turn signal data: The truck's electronic control module (ECM) may record whether the turn signal was activated before the lane change.
• Mirror adjustment records: Pre-trip inspection logs should document that mirrors were properly adjusted. Missing or incomplete records suggest the driver may not have verified adequate mirror positioning.
• Driver logs and hours of service: A fatigued driver who has exceeded hours-of-service limits is more likely to skip mirror checks or react slowly.

Injuries from Blind Spot Collisions

The weight disparity between a commercial truck and a passenger vehicle makes blind spot crashes particularly devastating. Common injuries include traumatic brain injuries from side-impact collisions, spinal cord damage when a vehicle is pushed off the road and rolls, crush injuries in right-turn squeeze accidents, and fatal underride injuries when a smaller vehicle is pulled beneath the trailer. Even a sideswipe at highway speed can send a car spinning into a guardrail or oncoming traffic, producing injuries far more severe than the initial contact might suggest.

What to Do After a Blind Spot Truck Crash

If you are involved in a collision with a commercial truck, take the following steps to protect your health and your legal rights:

• Move to safety if possible and call 911 immediately
• Seek medical attention even if you feel uninjured, as adrenaline can mask serious symptoms
• Photograph the truck's position, mirror configuration, and any damage to both vehicles
• Note the truck's DOT number, carrier name, and license plate
• Obtain contact information from any witnesses
• Save any dashcam footage from your vehicle
• Do not give recorded statements to the trucking company's insurance adjuster before speaking with an attorney

Trucking companies dispatch rapid-response teams to crash sites to begin building their defense immediately. Having experienced legal representation early in the process ensures that critical evidence is preserved and that the insurance company's "blind spot" defense is challenged with the facts.