Outside power mirrors, Outside convex mirror, Outside power mirrors outside convex mirror – GMC 2007 Savana User Manual
Page 138: Caution

Adjust the mirror by rotating it left or right. Once
the mirror is adjusted to the correct position,
tighten the set screw, located at the end of the
arm, to hold the mirror in place. These mirrors can
also be manually folded in.
On the lower portion of each mirror is a convex
mirror. A convex mirror’s surface is curved so you
can see more from the driver’s seat.
Outside Power Mirrors
If the vehicle has power
mirrors, the control is
located on the driver’s
side door.
Select each mirror by turning the knob clockwise
for the passenger’s side mirror or counterclockwise
for the driver’s side mirror. The center position
is neutral.
Then, adjust the mirror angle by moving the knob
in the desired direction.
Outside Convex Mirror
Your passenger’s side mirror may be convex.
A convex mirror’s surface is curved so you can see
more from the driver’s seat.
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CAUTION:
A convex mirror can make things (like
other vehicles) look farther away than
they really are. If you cut too sharply into
the right lane, you could hit a vehicle on
your right. Check your inside mirror or
glance over your shoulder before
changing lanes.
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