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PLEASANTON, Alameda County, Calif., Oct. 18, 2026 — A driver fled after a four-vehicle crash left multiple people hurt early Saturday morning, October 17, on eastbound Stanley Boulevard near the RMC entrance in Pleasanton, according to the California Highway Patrol.
The crash was first reported as a two-vehicle collision with unknown injuries before it was reclassified as a hit-and-run involving injuries. Dispatch logs described a gray sedan, a black SUV, a black sedan and a fourth, unidentified vehicle involved in the collision. At least two people were reported to have injuries.
Pleasanton police units responded to block eastbound Stanley Boulevard at Shadow Cliff while fire crews were sent to the scene. Officers also checked the area of Stanley Boulevard and Lilienthal Road as part of the response. Investigators requested tow trucks for multiple vehicles left in the roadway.
The crash remains under investigation by the California Highway Patrol, and no further details on the cause have been released. We hope everyone who was hurt makes a speedy recovery.
More on Crashes in Pleasanton, CA
This crash happened at Stanley Boulevard and Lilienthal Road in Pleasanton, CA. We cover crashes across Alameda County as they're reported, and you can browse the latest in our Alameda County accident reports.
Frequently Asked Questions
What injuries are most common in car accidents like this one?
Multi-vehicle crashes often cause whiplash, broken bones, cuts from broken glass, and head or chest injuries from the impact. Severity depends on speed and the angle of collision.
What are the most common causes of car accidents?
Distracted driving, speeding, impaired driving and failure to yield are among the leading causes investigators look at in multi-vehicle crashes.
Why is fleeing the scene after a crash a serious offense?
Leaving the scene of an injury crash can be charged as a misdemeanor or felony hit-and-run under California law, since it prevents injured parties from getting help and complicates the investigation.
What to Do After a Hit-and-Run Crash in Pleasanton, CA
If you're involved in or witness a hit-and-run crash, call 911 right away and stay at the scene if it's safe to do so. Try to note details about the fleeing vehicle, like its color, make or license plate, even a partial one can help investigators. Take photos of the scene, vehicle damage and any visible injuries if you're able. Seek medical evaluation even if injuries seem minor, since some symptoms, like concussions or internal injuries, can take hours to appear. File a report with local police as soon as possible, and keep a copy for your records. Cooperating with CHP or local investigators and providing any dashcam footage can also help identify the driver responsible.
