The generator door under the windshield on my 2007 Tour Master had two ACE style latches -- the matching key had large wings to turn the latch when unlocking and locking. The door had a central retractable handle and the door hinged out and down to access the four 6 volt inverter/generator batteries and the generator service items such as the coolant and the oil. Not sure if your 8411 is similar...
Below is a closeup view with the door open. The second image shows the ACE-keyed latches circled in red and the flush swivel out handle in the green rectangle:
2007 Tour Master T40C
Acura MDX toad
"It takes a great deal of time to recover from any improvement..."
It says generator slide, it’s the Last button on the right on the panel above the awning controls
The fifth button
Button go from porch step light