How can I fix the issues with the remote start feature in my Chevrolet Silverado 1500 T1XX?

Remote Start Issue on Chevrolet Silverado 1500 T1XX (2019-2023)

Symptoms:

1. Remote start button on the key fob does not activate the engine.
2. Engine starts but shuts off after a few seconds.
3. Remote start works intermittently.
4. Security system warning light is illuminated.

Repair Instructions

1. Replace Key Fob Battery:

   • Open the key fob using the flat-head screwdriver or coin.
   • Remove the old battery and replace it with a new one (CR2032 or similar, depending on your model).
   • Reassemble the key fob and test the remote start functionality.

2. Reset Remote Start Feature:

   • If the remote start is still not functioning, perform a reset:
     • Disconnect the negative battery terminal for about 5-10 minutes.
     • Reconnect the terminal and test the remote start again.

3. Repair or Replace Faulty Sensors:

   • If any trouble codes indicate a malfunctioning sensor (e.g., hood latch, door sensors), inspect and replace these sensors as needed.
   • Ensure that all doors and the hood are securely closed when attempting remote start.

4. Addressing Battery Issues:

   • If the battery voltage is low, recharge it or replace it with a new battery.
   • Ensure that the battery terminals are clean and tightly connected.

5. Reprogram Key Fob (if needed):

   • If the fob is not responding after battery replacement:
     • Tool Required: A second working key fob or dealer programming tool.
     • Insert the working key fob into the ignition and turn it to the "On" position.
     • Follow the vehicle’s key programming instructions (refer to the owner's manual).
     • If programming does not work, consult a dealer for assistance.

Conclusion

After completing the above diagnostic and repair steps, test the remote start feature to ensure it is functioning correctly. If problems persist, consider consulting a professional technician or dealer for further diagnostics or repair.