Quick Answer
To create an SOS signal from your vehicle, use a combination of visual and audible signals to alert rescuers. Start by turning on your hazard lights and then use mirrors, flares, or any shiny objects to reflect sunlight towards any passing aircraft or vehicles. If you have a whistle, blow it for 3-5 minutes at 10-second intervals.
Visual Signals
To create a visible SOS signal, use your vehicle’s mirrors or any shiny objects to reflect sunlight towards rescuers. Hold a mirror at an angle to reflect sunlight towards the direction you want to signal. Use at least three reflective surfaces to spell out the SOS pattern (three short dots, three short dashes, three short dots). If you don’t have any reflective surfaces, use any brightly colored clothing or objects to signal.
Audible Signals
Use a whistle to create an audible SOS signal. Blow the whistle for 3-5 minutes at 10-second intervals to signal your location. This can be heard from a distance and will alert rescuers that you need assistance. If you don’t have a whistle, use any other loud, attention-grabbing noise to signal your presence.
Additional Tips
When stranded, stay near your vehicle and conserve energy. Use your vehicle’s hazard lights to signal your location and make it visible from a distance. If you have a fire starter or lighter, use it to create a smoky fire during the day to signal your location. Always stay visible, and use any available materials to create a visible or audible signal to alert rescuers.
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