Where is the radiator drain plug on a 1999 Cadillac Seville?

The radiator drain plug on a 1999 Cadillac Seville is located at the bottom of the radiator, usually on the driver's side. However, its exact position can vary slightly depending on the specific radiator model used in your car.

To be certain, I recommend:

* Consulting your owner's manual: This is the most reliable source. The manual will have diagrams and specific instructions.

* Looking closely at the bottom of the radiator: It's usually a small, slightly recessed plug. You might need a flashlight to see it clearly. Be careful as it could be hot if the engine is recently running.

Be prepared to use a container to catch the coolant when you drain the radiator. Coolant is toxic and should be disposed of properly according to local regulations.