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In order to reprogram an AstroStart HST5224 remote, you must put the key in the ignition and turn it until just before the car cranks. Press and hold the valet button at the same time. Once this is done, the LED in the dashboard display should blink, and the car will emit a chirping noise: this sound is the signal that your system will be reset, denoting that the starter wire has been ground relayed. The engine should then start.

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Q: How do you reprogram an AstroStart remote HST5224?
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