Re: security lock out.
I have never had a problem with a VATS (Vehicle Ant-Theft System) or PKE (Passive Keyless Entry) after replacing a battery.
I am assuming that you mean the 12 Vdc car battery, and are not referring to the PKE fob battery.
When you say the Security Lights are flashing, what lights are you referring to? The only Security Light I know of is on the left of the dash display. When the word "Security" is flashing after you open a car door with the key or PKE, it means that a proper entry has been made and VATS will allow the car to start. If the word "Security" is on steady, it means that VATS is enabled and the car will not start.
Is it possible there is an after-market alarm/security system installed on your car?
Jim
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