GMC 2003 Sierra - Manual (Page 151)

4, Add one peg at a time
uпtil^ with the
compartment door
closed, the PUSH
button on the
compartment door wiit
operate the garage
door opener^
5. Now, with the
compatlTnent door
dosed, press the
burton martied PUSH
again
to make sure
the garage rkior opsnar
operates properly.
With the garage rJocH' opener positfoned property
and the right number of pegs in ptace, you should
only have to press the PUSH burton sNghtiy lo
operate the openen
Adtusl Uie position of the garage door opener and
add or remove pegs, as needed, until the opener
operates properly.
2-&4