The crash occurred on 15 Freeway, south of the Sierra Avenue exit, at approximately 3:15 a.m. on December 11, 2025. CHP officers and emergency crews responded to the scene shortly after the incident was reported.
Fontana, CA – One person was killed in a rear-end traffic collision on Interstate 15 in Fontana Thursday morning, according to the California Highway Patrol.
The crash occurred on 15 Freeway, south of the Sierra Avenue exit, at approximately 3:15 a.m. on December 11, 2025. CHP officers and emergency crews responded to the scene shortly after the incident was reported.
According to CHP, a black Lexus 400 series sedan collided with the rear of a semi tractor-trailer that was parked on the right shoulder of the freeway. The speed of the Lexus at the time of impact was not immediately known.
The driver of the Lexus died at the scene. The semi driver was unharmed. No arrests were reported.
The cause of the crash remains under investigation, though preliminary reports indicate the Lexus struck the parked trailer.
CHP officers and emergency responders worked quickly to secure the scene and provide assistance, coordinating traffic control along the busy freeway.
The crash caused temporary lane closures on Interstate 15 near the Sierra Avenue exit, leading to delays for early-morning commuters.
This incident remains under investigation by the California Highway Patrol’s Rancho Cucamonga office.
Additional details will be released once the preliminary accident report is completed.
Crash Statistics in California
California continues to see a significant number of traffic collisions annually. According to the California Highway Patrol’s Statewide Integrated Traffic Records System (SWITRS), there were over 2,000 fatal crashes and nearly 300,000 total collisions reported statewide in 2024. Fontana and the surrounding San Bernardino County area accounted for a notable portion of these incidents, with rear-end collisions and single-vehicle accidents contributing heavily to injury and fatality numbers
Nationally, the National Highway Traffic Safety Administration (NHTSA) reports that rear-end crashes account for roughly 29% of all vehicle crashes in the U.S., emphasizing the dangers of distracted driving and high-speed collisions on
Drivers are urged to maintain safe distances from vehicles, especially large trucks and trailers, and to remain alert on high-speed freeways. Avoid distractions such as mobile devices while driving, and always adhere to posted speed limits to prevent fatal collisions.
If you’ve lost a loved one in a fatal truck accident, speaking with a skilled wrongful death and truck accident attorney can help you understand your legal rights during this difficult time. An attorney can guide your family through the claims process, protect your interests, and pursue compensation for your loss. Reach out today for compassionate legal support and a free case evaluation.