To disengage Super Cruise, first grab the steering wheel then press the Super Cruise button again or press the brake pedal. If you press the brake pedal, Super Cruise and Adaptive Cruise Control will disengage.

No, Super Cruise will not steer to avoid safety situations, objects or road impediments. If equipped with Lane Change on Demand, you are able to prompt the system to change lanes for you. However, Super Cruise will not steer to avoid safety situations. You need to take control to steer around a traffic situation or object, merge into traffic, exit the highway, make a turn, or stop for crossing traffic or a traffic light, stop sign or other traffic control device. Super Cruise does not steer to avoid construction zones.

Begin to steer by firmly taking control of the steering wheel and the light bar should pulse blue. Once you are ready for Super Cruise to steer again, center the vehicle in the lane and wait for the steering wheel to turn green. You can remove your hands when the steering wheel is green.

It is important to always remember that Super Cruise is a convenience system and cannot accurately detect all situations. Super Cruise also cannot determine whether the driver is awake, asleep, impaired or properly focused on safe driving. Complete attention is always required while driving, even when using Super Cruise. The driver should always be prepared to take over steering or apply the brakes at any time.

Super Cruise will use the Adaptive Cruise Control^† set speed, however if you have not set the Adaptive Cruise Control speed when Super Cruise has activated, it will use your current speed as the Adaptive Cruise Control set speed. In cases when vehicle speed is greater than the Set Speed or when Set Speed is above maximum allowed Super Cruise Speed, Set Speed will be equal to the vehicle speed. Super Cruise also will slow down around sharp curves.

Super Cruise map information is updated periodically. Automatic updates via your GMC Connected Services plan will occur for the latest Super Cruise road availability information. In the event that a map update is not completed within seven months, Super Cruise will be disabled. In order to get Super Cruise working again, you must either drive the vehicle long enough for the automatic updates via your GMC Connected Services plan to take effect or visit the dealer to have a new map update downloaded to the vehicle for a fee. Wi-Fi may be required for map updates. See your owner's manual for details.

Verify that Teen Driver is not active.

"Unavailable Turn on Adaptive Cruise Control”?
Adaptive Cruise Control must be on before Super Cruise can be enabled.

•    Set speed is not required before enabling Super Cruise.

“Unavailable Set Forward Collision Setting to Alert and Brake”?
Super Cruise is disabled unless Alert and Brake is selected.

•    Select the Settings menu, then Vehicle, then Collision/ Detection Systems, and then Forward Collision System.
•    Set Forward Collision to Alert and Brake.

“Unavailable No Road Information”?

•    There is no map information available for that portion of a controlled access road. Recent road reconstruction may turn off Super Cruise for that section of road until new map information is available.
•    The vehicle is not on the correct type of road. A controlled access freeway or compatible divided highway is required for Super Cruise.
•    The vehicle is approaching an interchange or intersection. The message will appear for 10 seconds or less.

“Unavailable Sensors Can’t Find Lane Lines”?

•    Rain or snow is inhibiting the system’s ability to see lane lines.
•    Direct sunlight is on the front camera at dawn or dusk.
•    There are missing or poor lane line markings on the road.
•    There is sun glare on the road surface.
•    There is heavy rain, puddles, or road spray.

“Unavailable Sensor Can’t See Face Clearly”?

•    Sun is shining into the Driver Attention System (DAS) camera.
•    Dawn or dusk sun glare is on the driver’s face.
•    Cups, food, hands, or other objects are obscuring the DAS view of the driver’s face.
•    The steering column is pointed too high or low for the DAS to see the driver. Adjust the steering column or the seat if the message occurs frequently.

“Unavailable Looking Away From Road for Too Long”?

•    The DAS system detects that the driver is not looking at the road.

“Unavailable Driving Too Fast”?

•    The vehicle is traveling faster than 137 km/h (85 mph).The maximum Super Cruise speed in curves will vary based on how sharp the curve is. The vehicle will automatically decrease speed if needed.

“Unavailable Driving in Exit Lane”?

•    The Super Cruise system has detected that the vehicle is in an exit lane.

“Unavailable GPS Signal Lost”?

•    There is poor reception in isolated areas.
•    Reception is being blocked by buildings or other large structures.
•    The owner’s required Connected Services subscription may have ended.

“Unavailable You Have Taken Vehicle Control”?

•    The brake pedal is being pressed.
•    The Adaptive Cruise Control has been canceled or turned off.

“Unavailable Sensor Blocked”?

•    Clear snow, ice, dirt, or other contaminants from the front and rear areas of the vehicle.

“Unavailable Sharp Curve”?

•    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 Unavailable”?

•    Super Cruise is unavailable for reasons not described in other messages.

“Super Cruise Locked Out See Owner’s Manual”?

•    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.

The Super Cruise system is a highly sophisticated system and should only be serviced by technicians with the proper training, tools and safety instructions, which are qualifications GMC dealers have. Without these qualifications the vehicle may become damaged.