To turn on Rescue Mode on your Garmin Astro 430 follow these steps:
- Go to main menu
- Select Dog List
- Select which Dog/Collar you would like to turn on or off Rescue Mode
- Select Show Info
- This will bring to you to the collar info screen, at this point press the menu button.
- Scroll down and select Rescue Mode, at this point you will be able to turn Rescue Mode on or off.
When the collar battery life reaches below 25%, the collar update rate is automatically changed to once every 2 minutes.