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indicator, it means that the front outboard passenger frontal airbag is allowed to inflate. If the word OFF or the off symbol is lit on the airbag status indicator, it means that the passenger sensing system has turned off the front outboard passenger frontal airbag. If, after several seconds, both status indicator lights remain on, or if there are no lights at all, there may be a problem with the lights or the passenger sensing system. See your dealer for service.


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Instruments and Controls


{ Warning


If the airbag readiness light ever comes on and stays on, it means that something may be wrong with the airbag system. To help avoid injury to yourself or others, have the vehicle serviced right away. See Airbag Readiness Light on page 5-18 for more information, including important safety information.


Charging System Light


The charging system light comes on briefly when the ignition is turned on, but the engine is not running, as


a check to show the light is working. It should go out when the engine is started. If the light stays on, or comes on while driving, there may be a problem with the electrical charging system. Have it checked by your dealer. Driving while this light is on could drain the battery. When this light comes on, or is flashing, the Driver Information Center (DIC) also displays a message. See Battery Voltage and Charging Messages on page 5-37. If a short distance must be driven with the light on, be sure to turn off all accessories, such as the radio and air conditioner.


Malfunction Indicator Lamp A computer system called OBD II (On-Board Diagnostics-Second Generation) monitors the operation of the vehicle to ensure emissions


are at acceptable levels, helping to maintain a clean environment. The malfunction indicator lamp comes on when the vehicle is placed in ON/RUN, as a check to show it is working. If it does not, have the vehicle serviced by your dealer. See Ignition Positions on page 9-20.


If the malfunction indicator lamp comes on while the engine is running, this indicates that the OBD II system has detected a problem and diagnosis and service might be required. Malfunctions often are indicated by the system before any problem is apparent. Being aware of the light can prevent more serious damage to the vehicle. This system also


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Caution (Continued)


(TPC) can affect the vehicle's emission controls and can cause this light to come on. Modifications to these systems could lead to costly repairs not covered by the vehicle warranty. This could also result in a failure to pass a required Emission Inspection/Maintenance test. See Accessories and Modifications on page 10-3.


This light comes on during a malfunction in one of two ways: Light Flashing: A misfire condition has been detected. A misfire increases vehicle emissions and could damage the emission control system on the vehicle. Diagnosis and service might be required.


To prevent more serious damage to the vehicle: . Reduce vehicle speed. . Avoid hard accelerations. . Avoid steep uphill grades.


If towing a trailer, reduce the amount of cargo being hauled as soon as it is possible.


If the light continues to flash, find a safe place to stop and park the vehicle. Turn the vehicle off, wait at least 10 seconds, and restart the engine. If the light is still flashing, follow the previous steps and see your dealer for service as soon as possible. Light On Steady: An emission control system malfunction has been detected on the vehicle. Diagnosis and service might be required.


assists the service technician in correctly diagnosing any malfunction.


{ Caution


If the vehicle is continually driven with this light on, the emission controls might not work as well, the vehicle fuel economy might not be as good, and the engine might not run as smoothly. This could lead to costly repairs that might not be covered by the vehicle warranty.


{ Caution


Modifications made to the engine, transmission, exhaust, intake, or fuel system of the vehicle or the replacement of the original tires with other than those of the same Tire Performance Criteria


(Continued)


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Instruments and Controls


The following may correct an emission control system malfunction: . Check that the fuel cap is fully


installed. See Filling the Tank on page 9-68. The diagnostic system can determine if the fuel cap has been left off or improperly installed. A loose or missing fuel cap allows fuel to evaporate into the atmosphere. A few driving trips with the cap properly installed should turn the light off.


. Check that good quality fuel is used. Poor fuel quality causes the engine not to run as efficiently as designed and may cause stalling after start-up, stalling when the vehicle is changed into gear, misfiring, hesitation on acceleration, or stumbling on acceleration. These conditions might go away once the engine is warmed up.


If one or more of these conditions occurs, change the fuel brand used. It may require at least one full tank of the proper fuel to turn the light off. See Fuel on page 9-66. If none of the above have made the light turn off, your dealer can check the vehicle. The dealer has the proper test equipment and diagnostic tools to fix any mechanical or electrical problems that might have developed. Emissions Inspection and Maintenance Programs Depending on where you live, your vehicle may be required to participate in an emission control system inspection and maintenance program. For the inspection, the emission system test equipment will likely connect to the vehicle's Data Link Connector (DLC).


The DLC is under the instrument panel to the left of the steering wheel. See your dealer if assistance is needed. The vehicle may not pass inspection if:


The malfunction indicator lamp is on with the engine running, or if the light does not come on when the ignition is turned to ON/RUN while the engine is off. See your dealer for assistance in verifying proper operation of the malfunction indicator lamp. The OBD II (On-Board Diagnostics) system determines that critical emission control systems have not been completely diagnosed. The vehicle would be considered not ready for inspection. This can


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If the light comes on while driving, pull off the road and stop carefully. The pedal might be harder to push, or the pedal can go closer to the floor. It may take longer to stop. If the light is still on, have the vehicle towed for service. See Towing the Vehicle on page 10-77.


{ Warning


The brake system might not be working properly if the brake system warning light is on. Driving with the brake system warning light on can lead to a crash. If the light is still on after the vehicle has been pulled off the road and carefully stopped, have the vehicle towed for service.


Metric


English


This light should come on briefly when the engine is started. If it does not come on then, have it fixed so it will be ready to warn if there is a problem. When the ignition is on, the brake system warning light also comes on when the parking brake is set. The light stays on if the parking brake does not fully release. If it stays on after the parking brake is fully released, it means the vehicle has a brake problem.


happen if the 12-volt battery has recently been replaced or run down. The diagnostic system is designed to evaluate critical emission control systems during normal driving. This can take several days of routine driving. If this has been done and the vehicle still does not pass the inspection for lack of OBD II system readiness, your dealer can prepare the vehicle for inspection.


Brake System Warning Light The vehicle brake system consists of two hydraulic circuits. If one circuit is not working, the remaining circuit can still work to stop the vehicle. For normal braking performance, both circuits need to be working. If the warning light comes on, there is a brake problem. Have the brake system inspected right away.


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Instruments and Controls


Antilock Brake System (ABS) Warning Light


This light comes on briefly when the engine is started. If the light does not come on, have it fixed so it will be ready to warn if there is a problem. If the light comes on while driving, stop as soon as it is safely possible and turn off the vehicle. Then start the engine again to reset the system. If the ABS light stays on, or comes on again while driving, the vehicle needs service. A chime may also sound when the light comes on steady.


If the ABS light is the only light on, the vehicle has regular brakes, but the antilock brakes are not functioning. If both the ABS and the brake system warning light are on, the vehicle's antilock brakes are not functioning and there is a problem with the regular brakes. See your dealer for service. See Brake System Warning Light on page 5-23 and Brake System Messages on page 5-38.


Four-Wheel-Drive Light


The four-wheel-drive light comes on when the transfer case is shifted into four-wheel drive and the front


axle engages. LO or HI will also be next to this light when the vehicle is in four-wheel low or four-wheel high. Some delay between the shifting and the light coming on is normal. See Four-Wheel Drive on page 9-35.


Tow/Haul Mode Light


For vehicles with the Tow/Haul Mode feature, this light comes on when the Tow/Haul Mode has been activated. See Tow/Haul Mode on page 9-34.


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Lane Departure Warning (LDW) Light


Vehicle Ahead Indicator


Traction Off Light


Instruments and Controls


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This light is green if LDW is on and ready to operate. This light changes to amber and flashes to indicate that the lane marking has been crossed without using a turn signal in that direction. See Lane Departure Warning (LDW) on page 9-65.


If equipped, this indicator will display green when a vehicle is detected ahead and amber when you are following a vehicle ahead much too closely. See Forward Collision Alert (FCA) System on page 9-58.


This light comes on briefly while starting the engine. If it does not, have the vehicle serviced by your dealer. If the system is working normally, the indicator light then turns off. The traction off light comes on when the Traction Control System (TCS) has been turned off by pressing and releasing the TCS/StabiliTrak button. This light and the StabiliTrak OFF light come on when StabiliTrak is turned off. If the TCS is off, wheel spin is not limited. Adjust driving accordingly. See Traction Control/Electronic Stability Control on page 9-41.


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Instruments and Controls


StabiliTrak® OFF Light


Traction Control System (TCS)/StabiliTrak® Light


This light comes on briefly while starting the engine. If it does not, have the vehicle serviced by your dealer. This light comes on when the StabiliTrak system is turned off. If StabiliTrak is off, the Traction Control System (TCS) is also off. If the StabiliTrak and TCS are off, the system does not assist in controlling the vehicle. Turn on the TCS and the StabiliTrak systems and the warning light turns off. See Traction Control/Electronic Stability Control on page 9-41.


This light comes on briefly when the engine is started. If the light does not come on, have the vehicle serviced by your dealer. If the system is working normally, the indicator light turns off. If the light is on and not flashing, the TCS and potentially the StabiliTrak system have been disabled. A DIC message may display. Check the DIC messages to determine which feature(s) is no longer functioning and whether the vehicle requires service.


If the indicator/warning light is on and flashing, the TCS and/or the StabiliTrak system is actively working. See Traction Control/Electronic Stability Control on page 9-41.


Engine Coolant Temperature Warning Light


This light comes on briefly while starting the vehicle. If it does not, have the vehicle serviced by your dealer. If the system is working normally the indicator light goes off.


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{ Caution


Tire Pressure Light


The engine coolant temperature warning light indicates that the vehicle has overheated. Driving with this light on can damage the engine and it may not be covered by the vehicle warranty. See Engine Overheating on page 10-16.


The engine coolant temperature warning light comes on when the engine has overheated. If this happens, pull over and turn off the engine as soon as possible. See Engine Overheating on page 10-16.


For vehicles with the Tire Pressure Monitor System (TPMS), this light comes on briefly when the engine is started. It provides information about tire pressures and the TPMS.


When the Light Is On Steady This indicates that one or more of the tires are significantly underinflated. A Driver Information Center (DIC) tire pressure message may also display. See Tire Messages on page 5-46. Stop as soon as possible, and inflate the tires to the pressure value shown on the Tire and Loading Information label. See Tire Pressure on page 10-48.


When the Light Flashes First and Then Is On Steady If the light flashes for about a minute and then stays on, there may be a problem with the TPMS. If the problem is not corrected, the light will come on at every ignition cycle. See Tire Pressure Monitor Operation on page 10-51.


Engine Oil Pressure Light


low can also damage the


{ Caution Lack of proper engine oil maintenance can damage the engine. Driving with the engine oil engine. The repairs would not be covered by the vehicle warranty. Check the oil level as soon as possible. Add oil if required, but if the oil level is within the operating range and the oil pressure is still low, have the vehicle serviced. Always follow the maintenance schedule for changing engine oil.


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Instruments and Controls


Low Fuel Warning Light


Security Light


This light should come on briefly as the engine is started. If it does not come on, have the vehicle serviced by your dealer. If the light comes on and stays on, it means that oil is not flowing through the engine properly. The vehicle could be low on oil and might have some other system problem. See your dealer.


This light is near the fuel gauge and comes on briefly when the ignition is turned on as a check to show it is working. It also comes on when the fuel tank is low on fuel. The light turns off when fuel is added. If it does not, have the vehicle serviced.


The security light should come on briefly as the engine is started. If it does not come on, have the vehicle serviced by your dealer. If the system is working normally, the indicator light turns off. If the light stays on and the engine does not start, there could be a problem with the theft-deterrent system. See Immobilizer Operation on page 2-21.


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High-Beam On Light


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The light goes out when the fog lamps are turned off. See Fog Lamps on page 6-5 for more information.


Lamps On Reminder


Cruise Control Light


This light comes on when the high-beam headlamps are in use. See Headlamp High/Low-Beam Changer on page 6-2.


Front Fog Lamp Light


The cruise control light is white when the cruise control is on and ready, and turns green when the cruise control is set and active. See Cruise Control on page 9-44. Adaptive Cruise Control Light


This light comes on when the exterior lamps are in use. See Exterior Lamp Controls on page 6-1.


For vehicles with fog lamps, this light comes on when the fog lamps are on.


This light is white when the Adaptive Cruise Control (ACC, if equipped) is on and ready, and turns green when


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Instruments and Controls


the ACC is set and active. See Adaptive Cruise Control on page 9-47.


Door Ajar Light


This light comes on when a door is open or not securely latched. Before driving, check that all doors are properly closed.


Information Displays


Driver Information Center (DIC) The DIC displays are shown in the center of the instrument cluster in the Info app. See Instrument Cluster on page 5-11. The displays show the status of many vehicle systems. The controls for the DIC are on the right steering wheel control.


w or x : Press to move up or down in a list.


o or p : Press to move between the interactive display zones in the cluster. V (Set/Reset): Press to open a menu or select a menu item. Press and hold to reset values on certain screens. DIC Info Page Options The info pages on the DIC can be turned on or off through the Settings menu. 1. Press o to access the cluster


applications.


2. Press w or x to scroll to the


Settings application.


3. Press V to enter the


Settings menu.


4. Scroll to Info Pages and


press p.


5. Press w or x to move through


the list of possible information displays.


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6. Press V while an item is


highlighted to select or deselect that item. When an item is selected, a checkmark will appear next to it.


DIC Info Pages The following is the list of all possible DIC info page displays. Some may not be available for your particular vehicle. Some items may not be turned on by default but can be turned on through the Settings app. See “DIC Info Page Options” earlier in this section. Speed: Shows the vehicle speed in either kilometers per hour (km/h) or miles per hour (mph). The vehicle odometer is also shown on this page. Trip A or Trip B, Average Fuel Economy, and Average Speed: Shows the current distance traveled, in either kilometers (km) or miles (mi), since the trip odometer was last reset.


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The Average Fuel Economy display shows the approximate average liters per 100 kilometers (L/100 km) or miles per gallon (mpg). This number is calculated based on the number of L/100 km (mpg) recorded since the last time this menu item was reset. This number reflects only the approximate average fuel economy that the vehicle has right now, and will change as driving conditions change. The Average Speed display shows the average speed of the vehicle in kilometers per hour (km/h) or miles per hour (mph). This average is calculated based on the various vehicle speeds recorded since the last reset of this value.


Press and hold V while this display is active to reset the trip odometer, the average fuel economy, and the average speed. Or press p and select reset in the menu.


Fuel Range and Instantaneous Fuel Economy: Shows the approximate distance the vehicle can be driven without refueling. LOW will be displayed when the vehicle is low on fuel. The fuel range estimate is based on an average of the vehicle's fuel economy over recent driving history and the amount of fuel remaining in the fuel tank. It also shows if the Active Fuel Management is active and in V4 mode, or inactive and in V8 mode. See Active Fuel Management® on page 9-27. The Instantaneous Fuel Economy display shows the current fuel economy in either liters per 100 kilometers (L/100 km) or miles per gallon (mpg). This number reflects only the approximate fuel economy that the vehicle has right now and changes frequently as driving conditions change.


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Instruments and Controls


Timer and Fuel Used: Can be used as a timer. To start the timer, press V while this display is active. The display will show the amount of time that has passed since the timer was last reset. To stop the timer, press V briefly while this display is active and the timer is running. To reset the timer to zero, press and hold V while this display is active.


This also shows the number of liters (L) or gallons (gal) of fuel used since the last reset of this menu item. Oil Life: Shows an estimate of the oil's remaining useful life. If REMAINING OIL LIFE 99% is displayed, that means 99% of the current oil life remains.


When the remaining oil life is low, the CHANGE ENGINE OIL SOON message will appear on the display. See Engine Oil Messages on page 5-40. The oil should be changed as soon as possible. See Engine Oil on page 10-6. In addition to the engine oil life system monitoring the oil life, additional maintenance is recommended in the Maintenance Schedule. See Maintenance Schedule on page 11-3. The Oil Life display must be reset after each oil change. It will not reset itself. Do not to reset the Oil Life display at any time other than when the oil has just been changed. It cannot be reset accurately until the next oil change. To reset the engine oil life system, press and hold V for several seconds while the Oil Life display is active. See Engine Oil Life System on page 10-9.


Tire Pressure: Shows the approximate pressures of all four tires. Tire pressure is displayed in either kilopascal (kPa) or in pounds per square inch (psi). If the pressure is low, the value for that tire is shown in amber. See Tire Pressure Monitor System on page 10-50 and Tire Pressure Monitor Operation on page 10-51. Best Fuel Economy: Displays average fuel economy, the best fuel economy over the selected distance, and a bar graph showing instantaneous fuel economy. Press p to change the selected distance. Press and hold V while this display is active to reset the best fuel economy and average fuel economy. This display can also be reset by selecting reset in the menu. Top Consumers: Shows a list of the features that are currently impacting the fuel economy, in order from highest to lowest. If a feature is turned off, it will be removed from the list.


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Economy Trend: Shows history of the Average Fuel Economy from the last 50 km (30 mi). Each bar represents about 5 km (3 mi) of driving. During driving the bars will shift to always reflect the most recent distance on the right side. Press and hold V to clear the graph or press p to reset through the menu. ECO Index: Provides feedback on the efficiency of current driving behavior. The bar graph shows a value that is based on current fuel consumption compared to what is expected from the vehicle with good and bad driving habits. It also shows if the Active Fuel Management is active and in V4 mode, or inactive and in V8 mode. See Active Fuel Management® on page 9-27. Engine Hours: Shows the total number of hours the engine has run. This display also shows the engine idle hours.


Trailer Brake: Displays on vehicles with the Integrated Trailer Brake Control (ITBC) system. TRAILER GAIN shows the trailer gain setting. OUTPUT shows the power output to the trailer any time a trailer with electric brakes is connected. Output is displayed in 0 to 10 bars. Dashes may appear in the OUTPUT display if a trailer is not connected. Speed Signs: Shows sign information, which comes from a roadway database in the onboard navigation. Off Road: Displays vehicle pitch and roll information, road wheel angle, and four-wheel drive (4WD) status. Following Distance: Used to select the alert timing for the Forward Collision Alert (FCA). See Forward Collision Alert (FCA) System on page 9-58. Blank Page: Shows no information.


Transmission Fluid Temperature Gauge: Shows the temperature of the automatic transmission fluid in either degrees Celsius (°C) or degrees Fahrenheit (°F).


Head-Up Display (HUD)


{ Warning


If the HUD image is too bright or too high in your field of view, it may take you more time to see things you need to see when it is dark outside. Be sure to keep the HUD image dim and placed low in your field of view.


If equipped with HUD, some information concerning the operation of the vehicle is projected onto the windshield. The image is projected through the HUD lens on top of the instrument panel. The information appears as an image focused out toward the front of the vehicle.


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{ Caution


If you try to use the HUD image as a parking aid, you may misjudge the distance and damage your vehicle. Do not use the HUD image as a parking aid.


The HUD information can be displayed in various languages. The speedometer reading and other numerical values can be displayed in either English or metric units. The language selection is changed through the radio and the units of measurement is changed through the instrument cluster. See Vehicle Personalization on page 5-50 and “Cluster Settings Menu” under Instrument Cluster on page 5-11.


Lane Departure Low Fuel


Some vehicle messages or alerts displayed in the HUD may be cleared by using the steering wheel controls. See Vehicle Messages on page 5-37. Some information shown may not be available on your vehicle if it is not equipped with these features.


The HUD control is to the left of the steering wheel. To adjust the HUD image: 1. Adjust the driver seat. 2. Start the engine.


HUD Display on the Vehicle


Windshield


The HUD may display some of the following vehicle information and vehicle messages or alerts: . Speed


Tachometer


. Audio . Phone . Navigation . Collision Alert . Cruise Control


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3. Use the following settings to


adjust the HUD.


$ (Image Adjustment): Press down or lift up to center the HUD image. The HUD image can only be adjusted up and down, not side to side. ! (Display View): Press to select the display view. Each press will change the display view. D (Image Brightness): Lift up and hold to brighten the display. Press down and hold to dim the display. Hold down to turn the display off. The HUD image will automatically dim and brighten to compensate for outside lighting. The HUD brightness control can also be adjusted as needed. The HUD image can temporarily light up depending on the angle and position of the sunlight on the HUD display. This is normal. Polarized sunglasses could make the HUD image harder to see.


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HUD Views There are four views in the HUD. Some vehicle information and vehicle messages or alerts may be displayed in any view.


only appears on vehicles that have these features, and when they are active.


Metric


Metric


English


Audio/Phone View: This displays the speed view along with audio/ phone information. The current radio station, media type, and incoming calls will be displayed.


English


Speed View: This display gives the speedometer reading (in English or metric units), speed limit, Adaptive Cruise Control speed, Lane Departure Warning, and vehicle ahead indicator. Some information


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Instruments and Controls


All HUD views may briefly display audio information when the driver uses the steering wheel controls to adjust the audio settings appearing in the instrument cluster. Incoming phone calls appearing in the instrument cluster may also display in any HUD view.


Navigation View: This displays the speed view along with Turn-by-Turn Navigation information. The compass heading is displayed when navigation routing is not active. Navigation Turn-by-Turn Alerts shown in the instrument cluster may also be displayed in any HUD view.


Metric


Metric


Performance View: This displays the speedometer reading, rpm reading, transmission positions, and gear shift indicator. Care of the HUD Clean the inside of the windshield to remove any dirt or film that could reduce the sharpness or clarity of the HUD image. Clean the HUD lens with a soft cloth sprayed with glass cleaner. Wipe the lens gently, then dry it. HUD Troubleshooting Check that: . Nothing is covering the


HUD lens.


. HUD brightness setting is not


too dim or too bright.


. HUD is adjusted to the proper


English


English


height.


GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14


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. Polarized sunglasses are


not worn.


. Windshield and HUD lens are


clean.


If the HUD image is not correct, contact your dealer. The windshield is part of the HUD system. See Windshield Replacement on page 10-26.


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Vehicle Messages Messages displayed on the DIC indicate the status of the vehicle or some action that may be needed to correct a condition. Multiple messages may appear one after another. The messages that do not require immediate action can be acknowledged and cleared by pressing V (Set/Reset).


The messages that require immediate action cannot be cleared until that action is performed. All messages should be taken seriously; clearing the message does not correct the problem. The following are the possible messages and some information about them.


Battery Voltage and Charging Messages


BATTERY LOW START VEHICLE When the vehicle’s battery is severely discharged, this message will display and four chimes will sound. Start the vehicle immediately. If the vehicle is not started and the battery continues to discharge, the climate controls, heated seats, and audio systems will shut off and the vehicle may require a jump start. These systems will function again after the vehicle is started. BATTERY SAVER ACTIVE This message displays when the battery voltage drops below expected levels and features are disabled. Turn off all unnecessary accessory features.


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Instruments and Controls


SERVICE BATTERY CHARGING SYSTEM On some vehicles, this message displays if there is a problem with the battery charging system. Under certain conditions, the charging system light may also turn on in the instrument cluster. See Charging System Light on page 5-20. Driving with this problem could drain the battery. Turn off all unnecessary accessories. Have the electrical system checked as soon as possible. See your dealer. TRANSPORT MODE ON This message is displayed when the vehicle is in transport mode. Some features can be disabled while in this mode, including Remote Keyless Entry (RKE), remote start, and the vehicle alarm system. Take the vehicle to your dealer for service to turn transport mode off.


Brake System Messages


BRAKE FLUID LOW This message is displayed when the brake fluid level is low. See Brake Fluid on page 10-19. SERVICE BRAKE ASSIST This message may be displayed when there is a problem with the brake boost assist system. When this message is displayed, the brake boost assist motor might be heard operating and you might notice pulsation in the brake pedal. This is normal under these conditions. Take the vehicle to your dealer for service. SERVICE TRAILER BRAKE SYSTEM On vehicles with the Integrated Trailer Brake Control (ITBC) system, this message displays and a chime may sound when there is a problem with the ITBC system.


When this message displays, power is no longer available to the trailer brakes. As soon as it is safe to do so, carefully pull your vehicle over to the side of the road and turn the ignition off. Check the wiring connection to the trailer and turn the ignition back on. If this message still displays, either your vehicle or the trailer needs service. See your dealer. See “Integrated Trailer Brake Control System” under Towing Equipment on page 9-77 for more information.


Compass Messages Dashes may be displayed if the vehicle temporarily loses communication with the Global Positioning System (GPS).


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Cruise Control Messages


ADAPTIVE CRUISE SET TO XXX This message displays when the Adaptive Cruise Control (ACC) speed is set. See Adaptive Cruise Control on page 9-47. ADAPTIVE CRUISE TEMPORARILY UNAVAILABLE This message displays when attempting to activate Adaptive Cruise Control (ACC) when it is temporarily unavailable. The ACC system does not need service. This can occur under the following conditions: . Cruise is turned on when the


vehicle is stopped. The radar cannot see objects well. See the next message.


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FRONT RADAR BLOCKED – SEE OWNERS MANUAL This message can display when:


The radar is not clean. Keep the radar sensors free of mud, dirt, snow, ice, and slush. Clean the entire front and/or rear of the vehicle. For cleaning instructions, see Exterior Care on page 10-81.


. Heavy rain or snow is interfering with the radar object detection or camera performance. CRUISE SET TO XXX This message displays when the cruise control speed is set. See Cruise Control on page 9-44. NO CRUISE BRAKING GAS PEDAL APPLIED This message displays when Adaptive Cruise Control (ACC) is active and the driver is pressing the gas pedal. When this occurs, ACC will not brake. See Adaptive Cruise Control on page 9-47.


SERVICE ADAPTIVE CRUISE CONTROL If this message displays, take the vehicle to your dealer to repair the system. Adaptive Cruise Control (ACC), Forward Collision Alert (FCA), and/or the Active Emergency Braking System may not work. Do not use these systems until the vehicle has been repaired. SHIFT TO PARK BEFORE EXITING This message may display if Adaptive Cruise Control (ACC) is engaged holding the vehicle at a stop, and the driver attempts to exit the vehicle. Put the vehicle in P (Park) before exiting.


Door Ajar Messages


DOOR OPEN This message displays and a chime may sound if a door is not fully closed. Stop and turn off the vehicle, check the door for


GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14


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obstructions, and close the door again. Check to see if the message still appears on the DIC. HOOD OPEN This message displays and a chime may sound if the hood is not fully closed. Stop and turn off the vehicle, check the hood for obstructions, and close the hood again. Check to see if the message still appears on the DIC. REAR ACCESS OPEN This message will display when the liftgate is open. Close the liftgate completely.


Engine Cooling System Messages


A/C OFF DUE TO HIGH ENGINE TEMP This message displays when the engine coolant becomes hotter than the normal operating temperature. See Engine Coolant Temperature Gauge on page 5-15. To avoid


added strain on a hot engine, the air conditioning compressor automatically turns off. When the coolant temperature returns to normal, the air conditioning compressor turns back on. You can continue to drive your vehicle. If this message continues to appear, have the system repaired by your dealer as soon as possible to avoid damage to the engine. ENGINE OVERHEATED IDLE ENGINE This message displays when the engine coolant temperature is too hot. Stop and allow the vehicle to idle until it cools down. See Engine Coolant Temperature Gauge on page 5-15. When towing, use Tow/Haul Mode to prevent damage to the engine or transmission. See Tow/Haul Mode on page 9-34.


ENGINE OVERHEATED STOP ENGINE This message displays and a chime may sound if the engine cooling system reaches unsafe temperatures for operation. Stop and turn off the vehicle as soon as it is safe to do so to avoid severe damage. This message clears when the engine has cooled to a safe operating temperature.


Engine Oil Messages


CHANGE ENGINE OIL SOON This message displays when the engine oil needs to be changed. When you change the engine oil, be sure to reset the CHANGE ENGINE OIL SOON message. See Engine Oil Life System on page 10-9 for information on how to reset the message. See Engine Oil on page 10-6 and Maintenance Schedule on page 11-3.


GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14


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ENGINE OIL LOW ADD OIL On some vehicles, this message displays when the engine oil level may be too low. Check the oil level before filling to the recommended level. If the oil is not low and this message remains on, take the vehicle to your dealer for service. See Engine Oil on page 10-6. ENGINE OIL HOT IDLE ENGINE This message displays when the engine oil becomes hotter than the normal operating temperature. Stop and allow the vehicle to idle until it cools down. See Engine Coolant Temperature Gauge on page 5-15. OIL PRESSURE LOW STOP ENGINE This message displays if low oil pressure levels occur. Stop the vehicle as soon as safely possible and do not operate it until the cause of the low oil pressure has been corrected. Check the oil as soon as


possible and have the vehicle serviced by your dealer. See Engine Oil on page 10-6.


this message stays on, the vehicle should be taken to your dealer for service as soon as possible.


Engine Power Messages


Fuel System Messages


ENGINE POWER IS REDUCED This message displays and a chime may sound when the cooling system temperature gets too hot and the engine further enters the engine coolant protection mode. See Engine Overheating on page 10-16
for more information. This message also displays when the vehicle's engine power is reduced. Reduced engine power can affect the vehicle's ability to accelerate. If this message is on, but there is no reduction in performance, proceed to your destination. The performance may be reduced the next time the vehicle is driven. The vehicle may be driven at a reduced speed while this message is on, but acceleration and speed may be reduced. Anytime


FUEL LEVEL LOW This message displays and a chime may sound if the fuel level is low. Refuel as soon as possible. See Fuel Gauge on page 5-14 and Fuel on page 9-66. TIGHTEN GAS CAP This message may display along with the malfunction indicator lamp on the instrument cluster if the vehicle's fuel cap is not tightened properly. See Malfunction Indicator Lamp on page 5-20. Reinstall the fuel cap fully. See Filling the Tank on page 9-68. The diagnostic system can determine if the fuel cap has been left off or improperly installed. A loose or missing fuel cap allows fuel to evaporate into the


GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14


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atmosphere. A few driving trips with the cap properly installed should turn this light and message off.


Key and Lock Messages


NO REMOTE DETECTED This message displays when the transmitter battery may be weak. See “Starting the Vehicle with a Low Transmitter Battery” under Remote Keyless Entry (RKE) System Operation on page 2-3. NO REMOTE KEY WAS DETECTED PLACE KEY IN TRANSMITTER POCKET THEN START YOUR VEHICLE This message displays when trying to start the vehicle if an RKE transmitter is not detected. The transmitter battery may be weak. See “Starting the Vehicle with a Low Transmitter Battery” under Remote Keyless Entry (RKE) System Operation on page 2-3.


NO REMOTE DETECTED PRESS BRAKE TO RESTART This message displays when attempting to turn off the vehicle and the RKE transmitter is no longer detected. Restarting is allowed without the RKE transmitter for five minutes. Press the brake pedal to restart the vehicle. NUMBER OF KEYS PROGRAMMED This message displays when programming new keys to the vehicle. REMOTE LEFT IN VEHICLE This message displays when leaving the vehicle with the RKE transmitter still inside. REPLACE BATTERY IN REMOTE KEY This message displays when the battery in the RKE transmitter needs to be replaced.


Lamp Messages


TURN SIGNAL ON This message displays and a chime sounds if a turn signal is left on for 1.2 km (0.75 mi). Move the turn signal lever to the off position.


Object Detection System Messages


AUTOMATIC COLLISION PREP OFF This message displays when the Active Emergency Braking System has been turned off. See Active Emergency Braking System on page 9-60. AUTOMATIC COLLISION PREP REDUCED This message displays when the Active Emergency Braking System has been set to the Alert setting. This setting disables most automatic braking functions of the Auto Collision Preparation feature. Some


GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14


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last-second automatic braking capability is still provided with the Alert setting, but braking is less likely to occur. See Active Emergency Braking System on page 9-60. AUTOMATIC COLLISION PREP UNAVAILABLE This message displays when the Active Emergency Braking System has been unavailable for some time. The Active Emergency Braking System does not need service. This can occur under the following conditions:


The radar is not clean. Keep the radar sensors free of mud, dirt, snow, ice, and slush. Clean the entire front and/or rear of the vehicle. For cleaning instructions, see Exterior Care on page 10-81.


. Heavy rain or snow is interfering with the radar object detection or camera performance.


This message may also be displayed if there is a problem with the StabiliTrak system. FORWARD COLLISION ALERT OFF This message displays when the Forward Collision Alert has been turned off. FRONT CAMERA BLOCKED CLEAN WINDSHIELD This message displays when the camera is blocked. Cleaning the outside of the windshield behind the rearview mirror may correct the issue. The Lane Departure Warning system will not operate. Adaptive Cruise Control (ACC), Forward Collision Alert (FCA), and the Active Emergency Braking System may not work or may not work as well. LANE DEPARTURE WARNING UNAVAILABLE This message displays when attempting to activate the Lane Departure Warning (LDW) system


when it is temporarily unavailable. The LDW system does not need service. This message could be due to the camera being blocked. Cleaning the outside of the windshield behind the rearview mirror may correct the issue. PARK ASSIST OFF This message displays when the Parking Assist system has been turned off or when there is a temporary condition causing the system to be disabled. SERVICE AUTOMATIC COLLISION PREP If this message displays, take the vehicle to your dealer to repair the system. Adaptive Cruise Control (ACC), Forward Collision Alert (FCA), and Active Emergency Braking System may not work. Do not use these systems until the vehicle has been repaired.


GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14


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Instruments and Controls


SERVICE FRONT CAMERA If this message remains on after continued driving, the vehicle needs service. Do not use the Lane Departure Warning (LDW) and Forward Collision Alert (FCA) features. Take the vehicle to your dealer. SERVICE PARK ASSIST This message displays if there is a problem with the Parking Assist system. Do not use this system to help you park. See your dealer for service. SIDE BLIND ZONE ALERT OFF This message indicates that the driver has turned the Lane Change Alert and Side Blind Zone Alert (SBZA) systems off. SERVICE SIDE DETECTION SYSTEM If this message remains on after continued driving, the vehicle needs service. Lane Change Alert, Side Blind Zone Alert (SBZA) and Rear


Cross Traffic Alert (RCTA) features will not work. Take the vehicle to your dealer. SIDE DETECTION SYSTEM UNAVAILABLE This message indicates that Lane Change Alert, Side Blind Zone Alert (SBZA) and Rear Cross Traffic Alert (RCTA) are disabled either because the sensor is blocked and cannot detect vehicles in the blind zone, or the vehicle is passing through an open area, such as the desert, where there is insufficient data for operation. This message may also activate during heavy rain or due to road spray. The vehicle does not need service. For cleaning, see "Washing the Vehicle" under Exterior Care on page 10-81.


Ride Control System Messages


SERVICE LEVELING SYSTEM If the vehicle has the Magnetic Ride Control™ suspension system or Automatic Level Control, this message displays when the leveling system is not operating properly. Have the vehicle serviced by your dealer. SERVICE STABILITRAK If this message displays, it means there may be a problem with the StabiliTrak system. If you see this message, try to reset the system. Stop; turn off the engine for at least 15 seconds; then start the engine again. If this message still comes on, it means there is a problem. You should see your dealer for service. The vehicle is safe to drive; however, you do not have the benefit of StabiliTrak, so reduce your speed and drive accordingly.


GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14


(GMNA-


Black plate (45,1)


SERVICE SUSPENSION SYSTEM If the vehicle has the Magnetic Ride Control suspension system, this message displays when the suspension system is not operating properly. Have the vehicle serviced by your dealer. SERVICE TRACTION CONTROL This message displays when there is a problem with the Traction Control System (TCS). When this message displays, the system will not limit wheel spin. Adjust your driving accordingly. See your dealer for service. See Traction Control/ Electronic Stability Control on page 9-41. STABILITRAK INITIALIZING This message may come on if the StabiliTrak system has not fully initialized because of road conditions or the incorrect tire size. When the StabiliTrak system is fully initialized, the message will turn off.


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See Traction Control/Electronic Stability Control on page 9-41. If this message continues to be displayed for multiple ignition cycles and on different road surfaces, see your dealer for service. TRACTION CONTROL OFF This message displays when the traction control has been turned off. See Traction Control/Electronic Stability Control on page 9-41. TRACTION CONTROL ON This message displays when the traction control is active. See Traction Control/Electronic Stability Control on page 9-41. STABILITRAK OFF This message displays when the StabiliTrak system has been turned off. Adjust your driving accordingly. To limit wheel spin and realize the full benefits of the stability enhancement system, you should


normally leave StabiliTrak on. See Traction Control/Electronic Stability Control on page 9-41. STABILITRAK OFF may also display when the stability control has been automatically disabled. Several conditions can cause this message to appear:


If the system is overheating, which could occur if StabiliTrak activates continuously for an extended period of time. If the brake system warning light is on. See Brake System Warning Light on page 5-23. If the stability system takes longer than usual to complete its diagnostic checks due to driving conditions. If an engine or vehicle-related problem has been detected and the vehicle needs service. See your dealer. If the transfer case is in Four-Wheel Drive Low.


GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14


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The message turns off as soon as the conditions that caused the message to be displayed are no longer present.


Airbag System Messages


SERVICE AIRBAG This message displays if there is a problem with the airbag system. Take the vehicle to your dealer for service.


Security Messages


SERVICE THEFT DETERRENT SYSTEM This message displays when there is a problem with the theft-deterrent system. The vehicle may or may not restart, so you may want to take the vehicle to your dealer before turning off the engine. See Immobilizer Operation on page 2-21.


Steering System Messages


STEERING ASSIST IS REDUCED DRIVE WITH CARE This message may display if a problem occurs with the electric power steering system. If this message appears, steering effort may be slightly higher than normal. The vehicle is still safe to drive. Use caution while in reduced assist mode. If this message is persistent or appears repeatedly, take the vehicle to your dealer for service. See Steering on page 9-4. SERVICE POWER STEERING This message displays when there is a problem with electric power steering. Take the vehicle to your dealer for service. See Steering on page 9-4.


Tire Messages


SERVICE TIRE MONITOR SYSTEM If equipped with the Tire Pressure Monitor System (TPMS), this message displays if a part on the system is not working properly. The tire pressure light also flashes and then remains on during the same ignition cycle. See Tire Pressure Light on page 5-27. Several conditions may cause this message to appear. See Tire Pressure Monitor Operation on page 10-51. If the warning comes on and stays on, there may be a problem with the TPMS. See your dealer.


GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14


(GMNA-


Black plate (47,1)


TIRE LEARNING ACTIVE If equipped with the Tire Pressure Monitor System (TPMS), this message displays when the system is relearning the tire positions on your vehicle. The tire positions must be relearned after rotating the tires or after replacing a tire or sensor. See Tire Inspection on page 10-54, Tire Rotation on page 10-55, Tire Pressure Monitor System on page 10-50, and Tire Pressure on page 10-48.


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TIRE PRESSURE LOW ADD AIR TO TIRE If equipped with the Tire Pressure Monitor System (TPMS), this message displays when the pressure in one or more of the vehicle's tires is low. This message also displays with a vehicle picture to indicate the location of the low tire. The low tire pressure warning light will also come on. See Tire Pressure Light on page 5-27. You can receive more than one tire pressure message at a time. If a tire pressure message appears on the DIC, stop as soon as you can. Have the tire pressures checked and set to those shown on the Tire and Loading Information label. See Tires on page 10-41, Vehicle Load Limits on page 9-15, and Tire Pressure on page 10-48. The DIC also shows the tire pressure values. See Driver Information Center (DIC) on page 5-30.


Transmission Messages


4WD OFF If equipped with four-wheel drive, this message displays when the four-wheel-drive system is temporarily disabled due to an overheated condition. The vehicle will run in two-wheel drive when this message is present. Once the four-wheel-drive system cools down, the message turns off and the four-wheel-drive system returns to normal operation. 4WD SHIFT IN PROGRESS This message will display while the four-wheel-drive system is shifting. FOR 4WD LOW SHIFT TO NEUTRAL If a four-wheel drive shift into 4 n is requested, and the vehicle speed is correct, but the transmission is not in N (Neutral), this message will display until the transmission is shifted to N (Neutral).


GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14


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FOR 4WD LOW SLOW TO XXX If a four-wheel drive shift into 4 n is requested, but the vehicle speed is too high, this message will display until the correct vehicle speed is reached. GRADE BRAKING ACTIVE This message displays when grade braking has been activated while driving on downhill grades. This message will only appear the first time the feature is activated in an ignition cycle. See Tow/Haul Mode on page 9-34, Automatic Transmission on page 9-29, and Cruise Control on page 9-44. GRADE BRAKING OFF This message displays when grade braking has been disabled with the Tow/Haul Mode button on the end of the shift lever. See Tow/Haul Mode on page 9-34, Automatic Transmission on page 9-29, and Cruise Control on page 9-44.


GRADE BRAKING ON This message displays when grade braking has been enabled with the Tow/Haul Mode button on the end of the shift lever. See Tow/Haul Mode on page 9-34, Automatic Transmission on page 9-29, and Cruise Control on page 9-44. SERVICE 4WD If the vehicle has four-wheel drive, this message may display if a problem occurs with the four-wheel-drive system. If this message appears, stop as soon as possible and turn off the vehicle. Make sure the key is in the LOCK/ OFF position for at least one minute, then restart the vehicle and check for the message on the DIC display. If the message is still displayed or appears again when you begin driving, the four-wheel-drive system needs service. See your dealer.


SHIFT DENIED This message displays when the shift lever is in M (Manual Mode) and a transmission range has been selected that is unavailable at the current vehicle speed. TO EXIT 4WD LOW SHIFT TO NEUTRAL If a four-wheel drive shift out of 4 n is requested, and the vehicle speed is correct, but the transmission is not in N (Neutral), this message will display until the transmission is shifted to N (Neutral). TO EXIT 4WD LOW SLOW TO XXX If a four-wheel drive shift out of 4 n is requested, but the vehicle speed is too high, this message will display until the correct vehicle speed is reached.


GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14


(GMNA-


Black plate (49,1)


TRANSMISSION HOT IDLE ENGINE This message displays and a chime may sound if the transmission fluid in the vehicle gets hot. Driving with the transmission fluid temperature high can cause damage to the vehicle. Stop the vehicle and let it idle to allow the transmission to cool. This message clears and the chime stops when the fluid temperature reaches a safe level. When towing, use Tow/Haul Mode to prevent damage to the engine or transmission. See Tow/Haul Mode on page 9-34. VEHICLE IN 4WD LOW This message will display if the vehicle is driven in 4 n for about 10 minutes above 72 km/h (45 mph).


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Vehicle Reminder Messages


CHECK TRAILER WIRING On vehicles with the Integrated Trailer Brake Control (ITBC) system, this message may display and a chime may sound when one of the following conditions exists: . A trailer with electric brakes


becomes disconnected from the vehicle. ‐ If the disconnect occurs while


the vehicle is stopped, this message clears itself after a short time.


‐ If the disconnect occurs while


the vehicle is moving, this message stays on until the ignition is turned off.


There is a short in the wiring to the electric trailer brakes.


When this message displays, power is no longer available to the trailer brakes.


As soon as it is safe to do so, carefully pull the vehicle over to the side of the road and turn the ignition off. Check the wiring connection to the trailer and turn the ignition back on. This message clears if the trailer is reconnected. This message also clears if you acknowledge it. If this message still displays, either the vehicle or the trailer needs service. See your dealer. See “Integrated Trailer Brake Control System” under Towing Equipment on page 9-77. ICE POSSIBLE DRIVE WITH CARE This message displays when ice conditions are possible. TRAILER CONNECTED On vehicles with the Integrated Trailer Brake Control (ITBC) system, this message displays briefly when a trailer with electric or electric over hydraulic brakes is first connected to the vehicle.


GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14


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This message clears itself after several seconds. This message also clears if you acknowledge it. After this message clears, the TRAILER GAIN and OUTPUT displays appear in the DIC. See Driver Information Center (DIC) on page 5-30 and “Integrated Trailer Brake Control System” under Towing Equipment on page 9-77.


Washer Fluid Messages


WASHER FLUID LOW ADD FLUID This message displays when the windshield washer fluid is low. Fill the windshield washer fluid reservoir as soon as possible. See Engine Compartment Overview on page 10-5 for the location of the windshield washer fluid reservoir. Also, see Washer Fluid on page 10-18 for more information.


Vehicle Personalization Use the audio system controls to access the personalization menus for customizing vehicle features. The following are all possible personalization features. Depending on the vehicle, some may not be available.


Radio Audio System Controls 1. Press the desired feature to


display a list of available options.


2. Press to select the desired


feature setting.


3. Press o BACK on the faceplate or the 0 screen button to return to the previous menu or exit.


Turn the vehicle to ON/RUN to access the Settings menu, then select SETTINGS from the Home Page on the infotainment system display.


Personalization Menus The following list of menu items may be available:


Time and Date Language (Language)


. Valet Mode Teen Driver


. Radio . Vehicle . Bluetooth . Voice . Display . Rear Camera . Return to Factory Settings . Software Information Detailed information for each menu follows. Time and Date Manually set the time and date. See Clock on page 5-6.


GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14


(GMNA-


Black plate (51,1)


Language (Language) Select Language, then select from the available language(s). The selected language will display on the system, and voice recognition (if equipped) will reflect the selected language. Valet Mode (If Equipped) This will lock the infotainment system and steering wheel controls. It may also limit top speed, power, and access to vehicle storage locations (if equipped). To enable valet mode: 1. Enter a four-digit code on the


keypad.


2. Press Enter to go to the


confirmation screen.


3. Re-enter the four-digit code. Press LOCK or UNLOCK to lock or unlock the system. Press Back to go back to the previous menu.


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