Toyota 2003 Tundra Owner's Manual page 180

Type A (instrument panel)
180
'03 TUNDRA_U (L/O 0301)
To fold down the armrest
with the cup holder
To return the armrest with the cup
holder to the original position
Type B (front split bench seat—only when
the armrest is down)
Type C (front side of rear console box)
2003 TUNDRA from Jan. '03 Prod. (OM34421U)