My Mk2 GT200 has the reversing mirror function, but as previously described, you have to first set the mirrors by selecting reverse then quickly sliding the electric mirror control first to one side, then adjust the mirror to a suitable position for reversing e.g where you can see the rear wheel, then slide the switch to the other side and repeat. When you return the switch to the. Enteral position the mirrors return to your normal view.
Netxt time you select reverse, slide the mirror selector to the side you need, and the mirror at that side will go to the position you selected earlier.
This will only work one side at a time, as when you go back through the central position, the mirrors will revert back to your normal view.
There is a section in the manual that explains this feature.
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