2003 Buick Park Avenue: HEPA Replacement

Q--My Dad has an ‘03 Buick Park Avenue Ultra which needs the HEPA filter replaced or cleaned. He asked me how to do it but I have never attempted it. Can you tell me how to do this or send me to a site that can tell me?

A--The cabin air filter on your father’s Buick is located under the dash, to the right of the accelerator pedal. You have to open the trap door, and then take the filter out in three pieces. During installation, be sure to attach each piece by engaging the rails on the filters. It is a bit tricky for someone who has never done it before.

By the way, HEPA stands for high-efficiency particulate air filter and they are found in many devices including some vacuum cleaners.