GMC Sierra Denali 1500 2023 Owner's Manual page 274

Unavailable Sensor Blocked
Unavailable Sharp Curve
Unavailable Over Weight Limit
Unavailable Trailer Too Unstable
Unavailable Trailer Too Large
Unavailable Lane Too Narrow
Super Cruise Unavailable
Super Cruise Locked Out See Owner s Manual
Super Cruise Message Summary (cont'd)
Clear snow, ice, dirt, or other contaminants from the front and rear
areas of the vehicle.
Some curves are too sharp to be navigated by the Super Cruise
system. Super Cruise will be available after the curve is traveled.
Super Cruise has detected trailer is over allowable weight limit.
Super Cruise has detected that trailer attached is causing unstable
condition. Check trailer and/or load.
Trailer size (length/width) is larger than supported for Super Cruise
operation.
Super Cruise has detected lane width ahead is too narrow for Super
Cruise operation while towing a trailer.
Super Cruise is unavailable for reasons not described in other
messages.
The driver did not take control of the vehicle when prompted by the
Super Cruise system. The Super Cruise system will be disabled until
the ignition is turned off and back on.
Driving and Operating 273