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:
1500 Series Base Cluster English Shown, 2500/3500 Series and
Metric Similar
Midlevel Cluster English Shown, Metric Similar
1500 Series Uplevel Cluster English Standard Shown, 2500/3500
Series and Metric Similar
Cluster Menu (Midlevel and Uplevel)
There is an interactive display area in the center of the instrument cluster...
For diesel engine vehicles, see “Fuel for Diesel Engines” in the Duramax diesel
supplement.
If the vehicle has a yellow fuel cap or a yellow sticker on the fuel door, E85
or FlexFuel can be used. If the vehicle does not have a yellow fuel cap or yellow
sticker, do not use gasoline with ethanol levels greater than 15% by volume...