You’re stopped at a red light with an iced matcha in hand, waiting for the signal to change, when your phone vibrates. The instinct to check it is understandable, but in California, even a quick glance at your phone is still against the law.
Many drivers know they can’t handle their phones while the vehicle is moving, but there’s often confusion about what happens when the car isn’t. Even if you’re in traffic, you are still considered to be driving. Officers regularly stop motorists who believe checking a phone at a red light is legal. Except it isn’t.
The California Office of Traffic Safety defines distracted driving as anything that takes your attention away from the road or your hands off the wheel. Handling a device increases the risk of a collision by roughly three times. The consequences are serious – the National Safety Council reports that distracted driving crashes kill an average of nine people each day, totaling more than 3,200 deaths in 2023 alone.
Adult drivers may only use mobile devices in a hands-free manner like through voice activation or a mounted system. Drivers under 18 are prohibited from using a phone entirely while operating a vehicle. Even hands-free use can be hazardous, so officials recommend minimizing interaction and, when necessary, pulling over safely before reading or responding to a message.

Can you use your phone at a red light in California?
No. Holding a phone is illegal whether the vehicle is moving or stopped. If used for navigation, it must be mounted on the dash, windshield, or center console.
Can you talk on the phone while driving?
Yes, but only hands-free via Bluetooth, speakerphone, or voice commands. Drivers under 18 cannot use a phone for any reason while driving.
What exactly is the law?
California first banned handheld phone use in 2008 and later added texting restrictions. In 2017, the law required devices to be mounted and operable with a single tap or swipe. A recent appeals court decision clarified that simply holding a phone while driving violates the law.
How much is the fine?
A first offense is about $160, according to the California Highway Patrol. A second citation within 36 months can increase the cost to roughly $275 and may add a point to your DMV record, potentially affecting insurance rates.
So while the stoplight might feel like a safe moment to check in, California law treats it no differently than driving in motion. The simplest way to avoid a ticket and a potentially dangerous situation is to wait until you’re parked before reaching for your phone. Be safe and keep your attention where it matters most – on the road!