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What to Do If Your Car Breaks Down on a California Freeway

A stranded vehicle on a freeway is dangerous. Follow these steps to stay safe and get help.

August 8, 2026 5 min read· Editorial Team, California Car Accidents

Breaking down on a busy freeway is stressful and hazardous. A calm, methodical response keeps you safer and helps responders reach you quickly.

Pull over safely

Signal and move to the right shoulder as far from traffic as possible. If you cannot reach the right shoulder, the left shoulder is preferable to stopping in a lane. Never stop in a moving traffic lane if you can reach a shoulder.

Make yourself visible

Turn on hazard lights. At night, leave interior lights on so other drivers can see you and the vehicle is visible from a distance.

Stay in the vehicle

On a high-speed freeway, staying belted inside the vehicle is usually safer than standing near traffic. If you must exit, do so from the side away from traffic and stand behind a barrier such as a guardrail.

Call for help

Call 911 or the Freeway Service Patrol where available. Note your location using mile markers, exit signs, or a navigation app so responders can find you. See also freeway safety tips for habits that help prevent breakdowns.

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Official Government Resources

Official Government ResourceState Law Enforcement & Traffic Safety
Verified Contact Data

California Highway Patrol (CHP)

Investigates collisions on state highways and unincorporated roads, provides emergency roadside assistance, and issues official CHP 190 collision reports.

1-800-TELL-CHP Non-Emergency Hotline:1-800-835-5247
24/7 Public Assistance
California Car Accidents is an independent driver information resource and is not affiliated with, endorsed by, or sponsored by California Highway Patrol (CHP).
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