2017 Ford F-150 Owner’s Manual — Hazard Flashers
Roadside Emergencies
Note:
The hazard flashers operate when the ignition is in any position, or if the key is not in the ignition. If used when the vehicle is not running, the battery loses charge. As a result, there may be insufficient power to restart your vehicle.
- Press the flasher control and all front and rear direction indicators flash.
- Press the button again to switch them off.
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