Answer: Pull to the right shoulder, call 511, and stay belted inside
If your vehicle stops on the freeway, pull to the right shoulder, call 511 or use a call box, and stay belted inside until help arrives.
Easy to get wrong: Stopping in a lane or standing outside next to passing cars.
California Driver's Handbook (2025, REV. 6/2025 (© DMV 2025)), Chapter 8, p.69