Truck accidents · Subcategory
Tire-Blowout Truck Accident Cases
A commercial-truck tire blowout is the sudden, catastrophic loss of air pressure in a steer, drive, or trailer tire while the vehicle is in motion. Carriers and drivers often frame these events as 'unavoidable' acts of God. The maintenance record almost always tells a different story. Tire failures on tractor-trailers are governed by FMCSA Part 396 inspection rules and Part 393 equipment standards, and when a retread separates or an under-inflated tire fails, the chain of evidence usually leads to a documented service decision someone in the chain wishes had gone differently.
Why commercial tire failures rarely come out of nowhere
A correctly inflated, properly maintained tire on a properly loaded axle does not 'just blow.' The leading causes of catastrophic commercial-tire failure are chronic under-inflation (which generates internal heat and breaks down the tire structure over thousands of miles), retread separation (where the recap layer delaminates from the casing), running on a damaged casing past its safe service life, and overloading a tire above its load index. Each of these is a process failure traceable in tire-pressure-monitoring data, mileage records, and maintenance logs, not a random event.
FMCSA Part 396 and the inspection record
Under 49 CFR § 396.3, motor carriers must inspect and maintain every commercial tire systematically. 49 CFR § 393.75 sets minimum tread depth (4/32-inch on steer tires, 2/32 elsewhere) and prohibits operation with any visible fabric exposure, sidewall damage, or tread separation. The pre-trip inspection under § 392.7 requires the driver to confirm tire condition before each trip. A tire that failed on the highway with a documented sidewall bulge, an exposed cord, or a tread separation at last DVIR is a case where the regulatory violation does much of the proof work.
Retread tires, manufacturer liability, and product cases
Retreaded (recapped) tires are common and lawful on trailer and drive positions; they are prohibited on steer positions of commercial vehicles under 49 CFR § 393.75(d). When a retread separates, the analysis splits between the retread shop (negligent retread process, bad casing selection), the carrier (running the retread past its intended service life or on the wrong axle), and in some cases the tire manufacturer (defective casing). The retread industry follows specific procedures under the Tire Industry Association RIM and TRIB standards; deviations are provable through forensic tire examination of the failed tire, which means preserving the failed tire is the case's central evidence step.
Preserving the tire is the case
After a blowout crash, the failed tire is normally collected at the scene by DPS, the carrier, or a wrecker, and is often discarded within days. Preservation letters in the first 72 hours specifically naming the failed tire by position (e.g., 'driver-side trailer tandem, outer'), the tire on the opposite position for comparison, and the wheel and rim assembly are essential. A forensic tire examination by a qualified tire engineer can establish under-inflation history (heat signature), retread separation pattern, casing age, and prior repair history. Without the tire, the case becomes circumstantial in a way that materially affects value.
Frequently asked
Questions Texas accident victims ask us
- Almost never. A correctly inflated, properly inspected, properly loaded tire that has not exceeded its service life does not catastrophically fail at highway speed in normal conditions. The leading causes — chronic under-inflation, retread separation past safe service life, running on damaged casings, and overloading — are all documented and preventable in the maintenance file. The 'act of God' framing is a defense theme; the maintenance record usually contradicts it.
- Yes on drive and trailer positions, no on steer positions of commercial vehicles. 49 CFR § 393.75(d) specifically prohibits regrooved, recapped, or retreaded tires on the steer axle of any bus or truck with a manufacturer's GVWR over 10,000 pounds. Retreads on drive and trailer positions are common, lawful, and economically important to the industry, but they require careful inspection because separation failures are a known risk.
- The failed tire itself is the central piece. A qualified tire engineer can read the failure surface for evidence of chronic under-inflation (rubber color change from heat), retread separation pattern (smooth versus jagged delamination), prior repair locations, casing age (DOT week-and-year code), and prior puncture history. Supporting evidence includes the tire-pressure-monitoring system download, the carrier's tire-management software records, the last six DVIRs noting tire condition, retread-shop records, and the post-crash DPS inspection report.
- Sometimes. Product-liability claims against the tire manufacturer require proof of a manufacturing defect, design defect, or failure to warn. Forensic tire examination is the starting point: most failures trace to maintenance and use, not manufacturing. Where the casing shows evidence of an internal manufacturing flaw (delaminated steel belt, separation along an original bond line that was never compromised by use), a product-liability claim becomes viable and brings the manufacturer's substantial insurance into the case.
- You still have a claim, and a strong one. Tire debris striking a passing vehicle is a foreseeable consequence of operating a defective tire at highway speed under Texas proximate-cause analysis. We have handled cases where the entire collision sequence resulted from tire debris — including the secondary loss-of-control rollover after the strike — and the trucking-side defendants remained fully liable for the cascade.
- Often within days. The wrecker, the carrier, or the responding agency typically collects tire debris at the scene; from there, the carrier may dispose of it as ordinary waste unless preservation is requested in writing. We send a preservation letter naming the failed tire, the companion tire on the opposite position, and the wheel and rim within the first 72 hours of being retained, and we follow up with a written confirmation request. Without the tire, the case becomes substantially harder to prove.
- Often, yes. The pre-trip inspection under 49 CFR § 392.7 requires the driver to verify tire condition before each trip, including visible damage and inflation by visual or pressure check. A driver who signed off on a pre-trip inspection while a tire showed a visible sidewall bulge, low pressure, or chunking has signed a problematic document. Driver fault rarely defeats a case, but it sometimes sits alongside carrier maintenance fault as a shared cause.
- No. Chronic under-inflation is a maintenance failure. Federal rules and industry standards (TMC Recommended Practices) call for routine pressure checks; modern fleets often use tire-pressure-monitoring systems that log every reading. When a tire fails after running below load-rated minimum pressure for thousands of miles, the failure is foreseeable and the maintenance system is broken. The 'normal wear' framing collapses once the pressure history is produced.
Let's talk about your case.
Free case review, no obligation. We'll tell you straight whether we can help.