GMC 2002 Savana Van Owner's Manual page 121

NOTICE:
Holding a cigarette lighter in with your hand
while it is heating can make it overload,
damaging the lighter and the heating element.
Just push the lighter all the way in and let go.
When it's done, it will pop back by itself.
To remove the front ashtray, pull up on the tab with a
key or similar object inserted in the tab, and lift the
ashtray out.
2-50
Sun Visors
To block out glare, you can swing down the visors.
You can also swing them from side to side.
Visor Vanity Mirror (Option)
Some visors have mirrors built in, with or without
lamps. Just lift the mirror cover on each visor to turn the
lamps on, if you have them.