If you are experiencing issues with the filter not working in your Equinox+, follow these steps to troubleshoot and potentially resolve the problem:

1. Identify the Type of Filter: Determine whether you are dealing with the cabin air filter or the engine air filter. The cabin air filter cleans the air entering the cabin, while the engine air filter protects the engine.

2. Check for Blockages:

- For the cabin air filter, remove the filter and visually inspect it for dirt, leaves, or debris that might be blocking airflow. Refer to the guide on how to replace your cabin air filter if it appears to be clogged - learn more.

- For the engine air filter, check under the hood and locate the air intake box. Open it to inspect the filter for dirt or damage. If it's dirty, it needs replacement.

3. Replace the Filter:

- For the cabin air filter, use the following instructions:

a. Open the glove box and remove any contents.
b. Squeeze the sides of the glove box to allow it to drop down.
c. Locate the filter cover, unclip it, and remove the old filter.
d. Insert a new cabin air filter, making sure it's oriented correctly. Replace the cover and the glove box - learn more.

- For the engine air filter, simply lift out the old filter and place a new one in. Ensure it is seated properly.

4. Reset Any Filter Warning Light: If your Equinox+ has a filter reset button, press it after replacing the filters. This action may require using a small object like a paperclip to press and hold the button for about 5 seconds - learn more.

5. Perform System Check: After replacing the filters, run the vehicle engine and check that the airflow is restored. If the air is still not coming through effectively, inspect for other potential issues like a malfunctioning blower motor or electrical issues.

6. Consult Professional Help: If you have completed all the above steps and the filters are still not functioning correctly, contact a professional technician or your local dealership for further assistance.

Following these steps should help resolve the filter issues in your Equinox+. If you need further detailed instructions, particularly for a specific filter or model year, you may find useful video guides like this one learn more.