GMC Yukon 2021 Owner's Manual page 211

210 Climate Controls
1. Open the lower glove box door
completely.
2. Press the sides of the glove box bin
inward to clear the stoppers and rotate
downward to lower the bin.
3. Unsnap dampener by pushing outwards
to fully remove the glove box bin.
4. Pull the lever (1) on the left side of the
filter door and slide left (2), then remove
the door. Remove the old filter.
5. Install the new air filter.
6. Reinstall the filter door.
7. Reverse the steps to reinstall the
glove box.
See your dealer if additional assistance is
needed.
Service
All vehicles have a label underhood that
identifies the refrigerant used in the vehicle.
The refrigerant system should only be
serviced by trained and certified technicians.
The air conditioning evaporator should never