How do you reprogram an astro start 2503 controller?

To reprogram an Astro Start 2503 controller, first, ensure that the vehicle is in the "Run" position without starting the engine. Press and hold the programming button on the remote until the LED indicator lights up. Follow the prompts on the remote, using the buttons to program features like run time, temperature settings, and more. Once done, press the programming button again to save the changes, and the LED will turn off.