* Inside the cabin: Look for a lever, usually under the dashboard on the driver's side, near the steering column or the footwell. It might be clearly labeled "bonnet" or have a bonnet-shaped symbol. Pulling this lever will release the bonnet catch.
* Under the dashboard: In some models, the release is a small pull-tab or lever located under the dashboard on the driver's side. You may need to reach under the dash to find it.
After releasing the catch:
Once you've found and pulled the release lever, you'll need to lift the bonnet. There's usually a small lip or protrusion near the front edge of the bonnet. Gently lift up on this to open the bonnet. It might take a little effort initially, as it's held in place by a support strut.
If you can't find the release lever, consult your Ford Transit's owner's manual. It will have a diagram showing the exact location. You can also search online for "Ford Transit [year] bonnet release" to find videos or pictures that may help.