Hi there. It is common for the noise to occur for a few seconds when starting the vehicle. If the noise continues for 60 seconds then you may have an issue with the key lock cylinder. Most of the time the cylinder does not recognize the key is inserted and this will occur. It can also occur if the body control module is not functioning. If you are going to have this repaired, consider YourMechanic, as a certified mechanic can come to you to [diagnose why this beeping occurs] https://www.yourmechanic.com/services/electrical-components-are-not-working-inspection
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