GMC 1998 Savana Van Owner's Manual page 119

Camper-vpe Mirrors (If Equipped)
If your vehicle is equipped
with the camper-type
mirrors, they can be
adjusted
so
you can have
a clear view of objects
behind you.
1. To adjust the mirrors
when towing a trailer,
rotate the mirror by
pushing the mirror
head toward the front
of the vehicle.
2. Rotate the mirror
head, so that the
mirror surface
faces the rear of
the vehicle.
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