Where is the computer located on a 2000 Buick regal?

There isn't one single "computer" in a 2000 Buick Regal (or any modern car). Instead, there are several electronic control modules (ECMs), also called control units (often abbreviated as ECU), scattered throughout the vehicle. These modules handle different aspects of the car's operation. The most important ones, relevant to your question, are likely located:

* Under the hood: This is where you'll find the main engine control module (ECM), which controls ignition, fuel injection, and other engine functions. It's often a fairly large black box, sometimes attached to the firewall or near the battery.

* Under the dashboard: Various modules controlling things like the body control module (BCM) – managing lights, locks, and other body functions – and the transmission control module (TCM) will be located in this area. These are usually harder to access without removing parts of the dash.

Finding the exact location of each module requires a repair manual specific to a 2000 Buick Regal. The manual will have diagrams showing the location of all the modules and their connectors.