Ontario, CA (July 29, 2026) — A multi-vehicle collision involving a disabled Mercedes happened on eastbound I-10 east of Mountain Avenue on Monday, July 27.
California Highway Patrol dispatch records show the incident was first reported shortly before noon. A gray or silver Mercedes-Benz SUV was stopped in the No. 1 lane after running out of gas, and a later update indicated that the vehicle had been struck.
The dispatch log also identified a white Toyota Tacoma, a blue Ford Ranger, and possibly three additional vehicles.
The roadway was cleared shortly before 12:45 p.m., and emergency vehicles were requested.
The full sequence of the collision remains under investigation. We hope everyone affected is safe following the crash.
Where the Collision Happened: Eastbound I-10 East of Mountain Ave
I-10 is a major east-west interstate carrying passenger and commercial traffic through Ontario and the Inland Empire. The area east of Mountain Avenue includes several travel lanes serving vehicles continuing through the region.
A disabled vehicle in a main travel lane creates an unexpected obstruction for approaching drivers. At interstate speeds, motorists may have limited time to recognize the hazard, slow down, and move safely into another lane.
What We Know
- The crash was reported shortly before noon Monday.
- The incident occurred on eastbound I-10 east of Mountain Avenue.
- A Mercedes-Benz SUV was disabled in the No. 1 lane.
- Dispatch updates indicated that the disabled vehicle was struck.
- A Toyota Tacoma and a Ford Ranger were also identified.
- Up to three additional vehicles may have been involved.
- The roadway was cleared before 12:45 p.m.
- Towing services were requested.
How a Disabled Vehicle Can Trigger Multiple Freeway Impacts
A vehicle stopped in an active interstate lane can force approaching traffic to brake or change lanes abruptly. When several vehicles are traveling close together, one evasive movement may create additional conflicts across nearby lanes.
Investigators reviewing this I-10 collision will need to determine which vehicle made the first contact and whether later impacts followed as other drivers reacted. Damage patterns across the Mercedes, Toyota, Ford, and any additional vehicles can help establish the sequence.
How This Crash Is Investigated
CHP investigators may document vehicle damage, debris, tire marks, and the locations where each vehicle stopped. They may also examine how long the Mercedes had been disabled and where it was positioned in relation to approaching traffic.
Statements from the drivers and witnesses can be compared with the physical evidence. Because the initial dispatch record listed a changing number of possible vehicles, the completed collision report may clarify exactly how many were involved.
What to Do After a Multi-Vehicle Collision
People involved in a California freeway crash should preserve photographs, towing records, repair estimates, medical documents, and insurance correspondence. When early reports contain an uncertain vehicle count, the completed collision report may provide a clearer account of the investigating officer’s findings.
For crashes investigated by the California Highway Patrol, reports are available through the CHP Crash Portal at crashes.chp.ca.gov or through a CHP 190 request submitted by mail or in person. The collision report form is CHP 555, while CHP 190 is the request form.
The online portal fee is $22. Mail and in-person requests cost $10 per 25 pages through CHP. A report becomes available after the investigating officer files it, and the portal indicates when it is ready.
Under Vehicle Code § 20012, eligible parties of interest include drivers, passengers, vehicle or property owners, parents or guardians, and legal or insurance representatives. California collision reports are not public records and remain restricted to eligible parties, with no fixed public-release window.
Local Accident Reports compiles incident information from official agencies and credible local sources. Details from initial reports may be updated as official investigations conclude. If you have direct knowledge that any information here is inaccurate, please contact us so we can review and correct the record.
