How do you open car security lock without remote control?

To open a car security lock without a remote control, you can try using a physical key if you have one, or a slim jim tool to manipulate the locking mechanism through the door gap. Another option is to use a lockout tool kit, which may include inflatable wedges to create space between the door and frame, allowing access to the lock. If these methods are not feasible, contacting a professional locksmith or roadside assistance service is advisable.