GMC 2003 Envoy - Manual (Page 143)

Reading Lamps
Press ihe fens on the lamp located above the doors to
turn the reading lamps an and oti.
Dome Lamps
The ckrnie Eamps will come on wl>en you open a door
unless Ihe dorrte lamp override is pressed In.
Vou can also turn the dome lamps on by turning ihe
thumbwheel located nexl to the e)£terior lamps hnob,
aJi the way up to the top detent position, in this
posilion. the dome tamps will rgmair> on until they are
turned off.
Battery Run-Down Protection
This feature shuts off the dome, murtesy, vanity^
and reading lamps r( they a^e left on tor more than
20 minutes when the Ignition is oft. This will keep youf
battery from running down.
tí the battery run-down protection shuts off the Interior
lamps, it may be necessary lo do one ot the following to
relum lo normal operation'
\ Shut olí all lamps and dose all doors, or
\ turn Ihe ignition key 1g FÜH,
This featurg will also tern off Ihe parking lamps and
headlamps under most drcumstanc;es^ if they are lefl on.
if you would like to turn them back on, turn the exterior
lamps knob.
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