Fatal Highway 79 Semi Crash in Temecula: Who Is Liable?

Posted on: October 25th, 2026 by Pajman Jassim

San Diego’s Trusted Truck Accident Wrongful Death Lawyer

On Thursday afternoon, October 22, 2026, a big rig and an SUV collided head-on on Highway 79 in Temecula near Horizon View Street. The SUV caught fire, and two people inside were killed. Below, truck accident and wrongful death lawyers Pajman and Parisima Jassim summarize what is known, explain who can be held liable in a fatal truck crash, and outline what families should do next.

What Happened in the Highway 79 Truck Crash in Temecula?

According to Patch, the crash was reported at about 2:40 p.m. One vehicle crossed into opposing lanes, though authorities could not immediately say which one. It had been raining minutes before the collision. The SUV caught fire, and Riverside County Fire Department crews put out the blaze. Two people in the SUV died at the scene. The truck driver suffered minor injuries and declined an ambulance. The semi leaked oil and other fluids, requiring a hazmat cleanup, and CHP issued a Sig Alert as Highway 79 was partially closed for several hours. The cause has not been determined, and CHP is investigating.

Who Is Liable in a Fatal Head-On Truck Crash?

By Pajman Jassim and Parisima Jassim | Jassim Law | Southern California Truck Accident and Wrongful Death Trial Lawyers

Liability depends on what the investigation shows. In truck cases, more than one party may share responsibility:

• The truck driver, for speeding, fatigue, distraction, or crossing the center line
• The trucking company, for unsafe scheduling, poor training, or negligent hiring
• The maintenance provider, if brakes, tires, or steering failed
• Another motorist, if their driving caused the collision
• The public entity responsible for the road, if its design or condition contributed

California uses comparative negligence, so fault can be divided among several parties and each one pays its share.

Do Truck Drivers Have to Slow Down in the Rain?

Yes. Federal Motor Carrier Safety Administration (FMCSA) rules require commercial drivers to use extreme caution and reduce speed in hazardous conditions, including rain. A fully loaded tractor-trailer can weigh up to 80,000 pounds and needs far more distance to stop than a passenger car, and wet pavement makes that worse. If investigators find that a truck was moving too fast for conditions, that can be powerful evidence in a wrongful death claim.

What Evidence Matters After a Fatal Semi-Truck Accident?

Much of the key evidence is controlled by the trucking company and can be lost quickly:

• Electronic logging device (ELD) data showing driver hours
• Engine control module (“black box”) data on speed and braking
• Dash-cam and in-cab video
• Driver qualification, training, and drug-testing files
• Maintenance and inspection records
• Weather data and the physical evidence at the scene

A preservation demand, and when necessary an early lawsuit with subpoena power, keeps that evidence from disappearing.

How Do Truck Accident Wrongful Death Lawyers Handle These Cases?

Trucking companies often deny fault. In one of our cases, a semi tractor-trailer swerved into oncoming traffic and the defense blamed a “phantom” vehicle that left the scene. We investigated what the trucking company would not, and the case resolved for $9,000,000. In a separate wrongful death case with no witnesses and a police report that blamed our client, we recovered $1,370,000.

Jassim Law is a selective personal injury trial firm based in San Diego that serves Southern California. Your case is handled directly by attorneys Pajman Jassim and Parisima Jassim, not a case manager. We file suit early, retain accident reconstruction experts, and prepare every case for trial from day one.

Frequently Asked Questions | Truck Accident Wrongful Death 

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If you lost a loved one in a truck crash in Temecula, North County, or anywhere in Southern California, contact Jassim Law for a free, confidential consultation with truck accident lawyers Pajman Jassim and Parisima Jassim. Learn more about our wrongful death practice.

Attorney Advertising. This article summarizes publicly reported information and is for general informational purposes only; it is not legal advice and does not create an attorney-client relationship. Details may change as the investigation continues. Prior results do not guarantee a similar outcome.