Chevrolet Impala 2018 Owner's Manual page 50

Sunroof Switch
Express-Open/Express-Close :
Fully press and release
express-open the sunroof. Fully
press and release to
express-close the sunroof.
Open/Close (Manual Mode) :
Press and hold to open the
sunroof. Release at the desired
position to stop movement. Press
and hold to close the sunroof.
Vent Feature : Press
detent to open the vent. Press
to the first detent to close the vent.
The sunshade partially opens and
closes automatically during the vent
operation.
Sunshade Switch
Express-Open/Express-Close :
Fully press and release the front or
rear of to express-open or
express-close the sunshade. If the
sunroof is open, the sunshade will
express-close just short of the open
sunroof.
Open/Close (Manual Mode) :
Press and hold the front or rear of
to open or close the sunshade.
to
Release the switch to stop at the
desired position.
Automatic Reversal System
The sunroof has an automatic
reversal system that is only active
when the sunroof is operated in
express-close mode.
If an object is in the path while
express closing, the reversal system
will detect an object, stop, and open
to the first
the sunroof again.
If frost or other conditions prevent
closing, override the feature by
closing the sunroof in manual
mode. To stop movement, release
the switch.
Keys, Doors, and Windows
Dirt and debris may collect on the
sunroof seal or in the track. This
could cause an issue with sunroof
operation or noise. It could also plug
the water drainage system.
Periodically open the sunroof and
remove any obstacles or loose
debris. Wipe the sunroof seal and
roof sealing area using a clean
cloth, mild soap, and water. Do not
remove grease from the sunroof.
If water is seen dripping into the
water drainage system, this is
normal.
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