Global Machinery Company Sierra 1999 - Manual (Page 131)

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Outside Manual Adjust Mirrors
Adjust your outside mirrors so you can just see the side of
your vehicle and have a clear view of objects behind you.
Some mirrors can be folded in, to enter narrow doorways.
The use of hood - mounted air deflectors and add - on
convex mirror attachments may adversely affect
mirror performance.
Camper Type Outside Mirrors
(If Equipped)
If your vehicle is equipped with camper type mirrors,
they can be adjusted so you can have a clear view of
objects behind you.
Pull out on the mirror head to extend it for better
visibility when towing a trailer.
Electric Outside Rearview Mirrors
(If Equipped)
The control is located on the
driver’s door armrest.
Move the upper control to the left or right to choose the
mirror you want to adjust, then press the arrows on the
lower control pad to adjust the mirror.
Heated Outside Rearview Mirrors
(If Equipped)
The outside rearview mirrors with this option feature a
defrost mode.
To turn on the defrost feature, press the rear window
defrost button. See “Rear Window Defogger” in the
Index for further information.