A:Answer Thank you for your inquiry! If the lid of your Insignia™ 18 Gal. Automatic Trash Can with Recycle and Waste Divider does not open fully, it could be due to a few reasons. First, ensure there are no obstructions blocking the infrared sensor and clean the sensor area to make sure it can detect motion properly. Check the battery power, as low battery levels can affect the lid's operation, and replace the batteries if necessary. Make sure the trash can is not in manual mode, which might limit the lid's movement, and refer to the user manual to switch modes if needed. Inspect the lid mechanism for any visible damage or misalignment, as a damaged mechanism might need repair or replacement. If these steps don't resolve the issue, it might be best to contact Insignia customer support for further assistance. I hope this helps! Let me know if you have any other questions. Keith | Insignia Support