The fuel filler door release button's location varies slightly depending on the model year of your four-runner. However, it's almost always located
on the driver's side of the dashboard, near the driver's left knee or lower steering column area. It's usually a small, unassuming button, sometimes even unmarked except for a small fuel pump symbol.
If you can't find it in that general area, check your owner's manual. It will have a diagram showing the precise location for your specific year and model.
