Pontiac 2004 GTO - Manual (Page 231)

Battery
Your new vehicle comes with a maintenance free
battery. When it is time for a new battery, get one that
has the replacement number shown on the original
battery’s label. We recommend an ACDelco
® battery.
See Engine Compartment Overview on page 5-12
for battery location.
Warning: Battery posts, terminals and related
accessories contain lead and lead compounds,
chemicals known to the State of California to cause
cancer and reproductive harm. Wash hands after
handling.
Vehicle Storage
If you are not going to drive your vehicle for 25 days
or more, remove the black, negative (
−
) cable from
the battery. This will help keep your battery from
running down.
{ CAUTION:
Batteries have acid that can burn you and gas
that can explode. You can be badly hurt if you
are not careful. See Jump Starting on
page 5-42 for tips on working around a battery
without getting hurt.
Contact your dealer to learn how to prepare your
vehicle for longer storage periods.
5-41