GMC 1999 Sierra 1500 Pickup Owner's Manual page 134

Features & Contmls
e
PO057
If you have a garage door opener, the front overhead compartment can be
used to conveniently store the opener. To install the garage door opener, first
open the compartment door by pressing the release button forward.
Peel the protective backing from the hook and
loop
patch. Press it firmly to
the back of your garage door opener,
as close to the center of the opener
as possible.
PO058
Center the garage door opener activation button over the console door button,
and press the opener firmly into place.
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