Outside Manual Mirrors; Outside Trailer-Tow Mirrors - GMC 2007 Yukon XL Owner's Manual

Cleaning the Mirror
Use a paper towel or similar material dampened
with glass cleaner. Do not spray glass cleaner
directly on the mirror as that may cause the liquid
cleaner to enter the mirror housing.

Outside Manual Mirrors

Adjust your outside mirrors so you can just see
the side of your vehicle and have a clear view of
objects behind you. The mirrors can be folded
in to enter narrow areas.
The use of hood-mounted air deflectors and
add-on convex mirror attachments may adversely
affect mirror performance.

Outside Trailer-Tow Mirrors

If your vehicle is equipped with this trailer towing
type mirror, they can be adjusted so you can
have a clear view of the objects behind you.
Manually pull out the mirror head to extend it for
better visibility when towing a trailer.
These mirrors can be manually folded forward or
rearward. On the lower portion of the mirror is
a convex mirror. A convex mirror's surface
is curved so you can see more from the driver's
seat. The position of the convex mirror must
be adjusted manually to the driver's preferred
position.
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