GMC 2003 Savana - Manual (Page 89)

Battery Replacement
under normal use, ihe balteiy in i^our remote keyless
entry transmitter should last about four years.
V qu can tell the battery is weak it the iransmitier won’l
woft< at (tie normal range in ar^y location. 11 you have
lo get cfose 1e your vahide before Ihe transmitter works,
it's probably lime lo change the battery.
Notice: When feplacing Ihe ballery, use care not to
touch any oi Ihe clreuitryH Static from your body
iransferred to these surfaces may damage the
transmitter.
To replace (he battery in the keyless entry Iransmitler,
do the following.
1 . Use an obtect likq 3 coin lo pry open the transmitter,
а. Once the transmitter is separated, use an obieci
like a pencil to remove the old baltery Do no1 use
a mstal abject.
Remove and replace Ihe batlery, positive (+)
side down.
Snap the iransmitier back together lighUy to be sure
no moistuTB can enter.
5. Press and hold LOCK and UNLOCK on the remote
kqyless entry transmitter tor ryaven seconds to
resynchronize the transmitter.
б. Check ibe operatiort of the iransmitier.
3.
4.