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 the sunroof slightly...
Other information:
Emergency Services require an active safety and security plan. With Automatic
Crash Response, built-in sensors can automatically alert a specially trained OnStar
Advisor who is immediately connected in to the vehicle to help.
Press for a priority connection
to an OnStar Advisor who can contact emergency service providers, direct them to
your exact location, and relay important information...
If the vehicle has a diesel engine, see the Duramax diesel supplement.
Caution
If you add electrical parts or accessories, you could change the way the
engine operates. Any resulting damage would not be covered by the vehicle warranty.
See Add-On Electrical Equipment...