How do you change air filter in 2006 Cadillac dts?

To change the air filter in a 2006 Cadillac DTS, first, open the hood and locate the air cleaner assembly, which is typically on the driver's side. Remove the retaining clips or screws securing the air cleaner cover, then lift it off to access the air filter. Replace the old filter with a new one, ensuring it fits snugly, and reattach the cover securely. Finally, close the hood and start the engine to check for any unusual noises, confirming the installation was successful.