It should look like a small, silver button or lever. You might need to pull a small panel down to access it.
Here's a more detailed explanation:
1. Look for the driver's side door handle: It's on the lower part of the door.
2. Find the area below the door handle: This is where the trunk release is usually situated.
3. Look for a small button or lever: It's usually silver and might be covered by a small panel.
4. Pull down the panel if necessary: There might be a small panel covering the button. Gently pull it down to reveal the trunk release button.
5. Press or pull the button: Depending on the specific model, you might need to press or pull the button to open the trunk.
Note: Some 2001 Volvo S40 models might have a different location for the trunk release. You can also refer to your owner's manual for the exact location and instructions.