Mitsubishi ECLIPSE Owner's Manual page 271

Features and controls
NOTE
If the ignition key is removed with the doors and
the rear hatch closed, the dome light comes on for
30 seconds and then goes out.
3 ( ) - The dome light goes off.
Cargo area light (ECLIPSE only)
3
The cargo area light comes on when the rear hatch is opened.
When the rear hatch is closed, the cargo area light goes off.
3-176
Interior light auto-cutout function (dome light
and other lights)
If any of the interior lights are left on with the ignition switch
in the "LOCK" position, the lights go out automatically after
about 30 minutes.
The lights come on again if the ignition switch is turned to the
"ON" or "ACC" position, any door or the rear hatch
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(ECLIPSE) is opened and closed, or the keyless entry system is
operated.
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