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Where a Truck’s Blind Spots Are
Every vehicle has blind spots. A tractor-trailer’s are large enough to hide an entire vehicle — sometimes several. FMCSA safety campaigns call them No-Zones, and there are four of them around every large truck.
The right-side No-Zone is the one that produces the most crashes, because it is the widest and because traffic naturally passes on that side. [Replace with custom illustration at build.]
- Front — roughly 20 feet ahead of the cab. A driver sitting high in a tractor cannot see a vehicle that has just cut in.
- Rear — roughly 30 feet behind the trailer, with no rear-view mirror to cover it.
- Left side — approximately one lane wide, running alongside and behind the cab.
- Right side — the largest by far, extending across roughly two lanes and running most of the trailer’s length.
How Blind-Spot Crashes Happen
The typical blind-spot crash is a sideswipe during a lane change or merge. The truck moves laterally into a lane the driver believed was empty, and the vehicle already there is pushed toward a barrier, a guardrail, or into adjacent traffic. What goes wrong is usually one of the following:
- Changing lanes without clearing the mirror — commercial drivers are trained to check mirrors repeatedly through a lane change, not once before it.
- Failing to signal, or signaling and moving simultaneously — a signal that gives no warning interval gives the other driver no chance to clear the zone.
- Mirrors out of adjustment — convex and flat mirrors must be set for the specific driver and trailer. A mirror knocked out of position at a dock stays wrong for the rest of the trip.
- Merging without accounting for trailer length — a driver who clears the cab’s path may still sweep 53 feet of trailer through the adjacent lane.
- Disabled or ignored blind-spot monitoring — many tractors are equipped with lane-departure and side-object systems that alert the driver, and those alerts are frequently logged.
- Fatigue and distraction — both reduce the number of mirror checks a driver actually performs.
- Improper driver training — mirror discipline is a trained skill, and carriers are responsible for teaching and reinforcing it.

Shiner Law Group, P.A.
Founded by David I. Shiner, Esq. · AV Preeminent® rated · Florida Bar member since 2002
Shiner Law Group was founded by David I. Shiner, Esq., a Nova Southeastern University law graduate, a member of The Florida Bar since 2002, and AV Preeminent® rated by Martindale-Hubbell. The firm represents injured people across Florida from offices in Boca Raton, West Palm Beach, Fort Lauderdale, Fort Pierce, Orlando, Wellington, and Belle Glade, and handles truck accident cases on contingency: free consultations, and no fee unless there is a recovery.
Why “I Never Saw You” Is Not a Defense
The most common statement a truck driver makes after a blind-spot crash is that the other vehicle was not visible. As a factual matter that may well be true. As a legal matter it usually helps the injured person rather than the driver.
A commercial driver holds a specialized license and is trained on precisely where these zones are and how to compensate for them. Knowing that a vehicle can be entirely hidden alongside the trailer is the reason the required procedure exists: signal early, check mirrors repeatedly, move gradually, and confirm the lane is clear before committing to it. A driver who changes lanes into an occupied lane has, by definition, not completed that procedure.
Put simply, the size of the blind spot is not an excuse for the lane change — it is the reason the rules about lane changes exist. Florida law imposes a duty on every driver to ensure a movement can be made safely before making it, and that duty does not relax because the vehicle is large.
Who Is Liable for a Blind-Spot Crash in Florida?
| Potentially Liable Party | Typical Basis for Liability |
|---|---|
| Truck driver | Changing lanes or merging without confirming the lane was clear, failing to signal, driving with misadjusted mirrors, ignoring blind-spot alerts |
| Motor carrier | Inadequate training on mirror procedure and No-Zone awareness, negligent hiring or supervision, failing to equip or maintain mirrors and detection systems, vicarious liability for the driver |
| Maintenance contractor | Failing to repair or replace damaged, missing, or misaligned mirrors and sensors |
| Equipment manufacturer | Defective blind-spot detection or lane-departure systems that failed to warn |
Florida’s modified comparative negligence rule (Fla. Stat. § 768.81) allows recovery as long as the injured person is not more than 50% at fault, with the award reduced by their share. Expect the carrier’s insurer to argue that you lingered in the No-Zone or passed on the right. Establishing the truck’s signal, mirror, and alert history is how that argument is answered.
Alert logs and mirror settings do not stay preserved on their own.
Shiner Law Group offers free case reviews for Florida blind-spot crash victims — 24/7, no fee unless you win.
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Florida Roads Where This Happens
Blind-spot crashes concentrate where multi-lane traffic and heavy freight share the same pavement and merge frequently:
- I-95 and I-75 through metropolitan Florida, where trucks change lanes constantly around entrance and exit ramps.
- The I-4 corridor, where distribution traffic weaves across lanes between Tampa and Orlando.
- Port approach roads near PortMiami, Port Everglades, and JAXPORT, with dense container traffic and short merges.
- Florida’s Turnpike, where speed differentials between lanes are large.
- Urban arterials with frequent right-side driveways, where trucks drift right toward delivery entrances.
Evidence That Proves a Blind-Spot Case
- Lane-departure and side-object alert logs — whether the truck’s systems warned the driver, and whether warnings were routinely ignored
- Engine control module data — speed and steering input at the moment of the lane change
- Turn signal status — recorded by some systems and visible on dashcam footage
- Mirror configuration and condition — documented before the tractor returns to service
- Dashcam and side-camera footage — many fleets run multi-camera systems that record the adjacent lane directly
- Driver qualification and training file — what the carrier taught about No-Zone procedure, and prior incidents
- Damage pattern analysis — contact height and direction establish which vehicle moved laterally into the other
Camera footage is typically the most decisive evidence and the most perishable — many systems overwrite on a rolling cycle measured in days. A spoliation letter demanding preservation is normally the first document sent.
Common Injuries in Blind-Spot Crashes
A sideswipe rarely ends at the initial contact. The struck vehicle is usually pushed out of its lane and into a barrier, a guardrail, or another vehicle, and the secondary impact does most of the damage:
- Traumatic brain injuries from side impact and secondary collision
- Spinal cord injuries and paralysis
- Broken bones and orthopedic trauma, particularly on the struck side
- Internal organ injuries from lateral loading
- Crush injuries where a vehicle is pinned between the trailer and a barrier
- Wrongful death, especially for motorcyclists, who have no structure between themselves and the trailer
What to Do If a Truck Sideswiped You
- Get medical care immediately — Florida’s PIP statute (Fla. Stat. § 627.736) requires initial treatment within 14 days to access your $10,000 in benefits.
- Call law enforcement and get the crash report number.
- Photograph both vehicles before they are moved — contact height, paint transfer, and direction of scraping all establish who moved into whom.
- Note whether the truck was signaling and where your vehicle sat relative to the cab.
- Record the carrier’s DOT number and look for camera housings on the mirrors and cab.
- Do not give a recorded statement to the trucking company’s insurer before speaking with an attorney.
- Talk to a truck accident lawyer immediately — camera footage is often overwritten within days.
For the complete post-crash guide, see What to Do After a Truck Accident in Florida. If the truck was turning rather than changing lanes, see Wide-Turn Truck Accidents.