Do you have the key remote? If so, lock the car and let the car sit for a couple of hours. Then unlock the car using the remote, this should reset the security system. When you try to crank the engine over is the security light flashing? If so the system is still engaged, I would try a hard system reboot, which is done by removing the negative side of the battery, with the cable loose from the negative side of the battery, hold it to the positive terminal for 1 minute this will discharge the memory capacitors in the BCM and PCM allowing the system to reboot.
This guide may help as well:
https://www.2carpros.com/articles/how-to-reset-a-security-system
Let us know what happens and please upload pictures or videos of the problem.
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Friday, December 23rd, 2022 AT 12:40 PM