Chevrolet Spark 2021 Owner's Manual page 25

24 Keys, Doors, and Windows
The sunroof cannot be opened or closed if
the vehicle has an electrical failure.
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.