Auto User Guide

2023 GMC Yukon XL Warning and Indicator Lights Instructions

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2023 GMC Yukon XL Warning and Indicator Lights

An assortment of warning and indicator lights that are integral to the operation and safety of the 2023 GMC Yukon XL are included. These lights are essential for keeping you informed about the condition of the car, from warning you about possible safety hazards to informing you about engine problems. Knowing what these lights mean will help you take quick action to resolve any possible problems, preserving both your safety and the vehicle’s best performance while driving. Let’s examine the 2023 GMC Yukon XL’s crucial warning and indicator lights so you can prepare for any upcoming travels.

Warning Lights, Gauges, and Indicators

Warning lights and gauges can signal that something is wrong before it becomes serious enough to cause an expensive repair or replacement. Paying attention to the warning lights and gauges could prevent injury. Some warning lights come on briefly when the engine is started to indicate they are working. When one of the warning lights comes on and stays on while driving, or when one of the gauges shows there may be a problem, check the section that explains what to do. Waiting to do repairs can be costly and even dangerous.

Instrument Cluster2023 GMC Yukon XL Warning and Indicator Lights (1)

English Classic Display Shown, Others and Metric Similar

  1. Speedometer
  2. Driver Information Center (DIC)
  3. Tachometer 
  4. Engine Oil Pressure Gauge
  5. Voltmeter Gauge
    Transmission Temperature Gauge
  6. Fuel Gauge
  7. Engine Coolant Temperature Gauge

Reconfigurable Instrument Cluster The instrument cluster layout can be changed. There are four display configurations to choose from: Classic, Progressive, Digital, and Clean. The Classic, Progressive, and Digital, layouts may also be configured with one, two, or four gauges. See “Lower Gauges” under “Options.” The Clean layout will only display the fuel gauge. Use the steering wheel control to move between the different display zones and scroll through the different displays. See “Display Layout” under “Options.”

  • Classic configuration displays a larger speedometer and tachometer on the far left and right sides of the display. There are info display areas inside of the speedometer and tachometer. The DIC area is located in the center of the display.
  • Progressive configuration displays a smaller speedometer and tachometer on the far left and right sides of the display. There are info display areas inside of the speedometer and tachometer. The DIC area is larger and located in the center of the display.
  • . Digital configuration displays the info display areas on the far left and right sides of the display. The DIC area is larger and located in the center of the display.
  • Clean configuration is a simplified display that has a digital speed in the center. The DIC area is located on the far right of the display.

Cluster Menu
There are interactive display areas in the instrument cluster. Locations vary by the selected display layout.

2023 GMC Yukon XL Warning and Indicator Lights 21

Use the right steering wheel control to open and scroll through the different items and displays.

Press o or p to access the instrument cluster applications. Use the thumbwheel to scroll through the list of available applications. Press the thumbwheel to select. Not all applications or features are available on all vehicles.

  • . Info App. This is where the selected Driver Information Center (DIC) displays can be viewed. See Driver Information Center (DIC).
  • Audio
  • Navigation
  • Phone
  • Options

Left/Right Side Info
The information displayed here can be customized from the Options menu. See “Options” below.

Compass : If equipped, shows the direction the vehicle is heading. This info is the default option for the left side.

Time & Outside Temperature: Displays the current time and outside air temperature.

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.

Average Fuel Economy: Displays the approximate average liters per
100 kilometers (L/100 km), kilometers per liter (km/L), or miles per gallon (mpg). This number is calculated based on the value recorded since the last time this menu item was reset in the Fuel Economy info page. This number reflects only the approximate average fuel economy that the vehicle has at that moment, and changes as driving conditions change.

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

Drive Mode Enhanced: Displays the state of the drive mode, ride height, and transfer case. This info is only available as a right-side option and is the default selection for the right side.

None: Displays the info area as empty.

Audio
Press w or x to scroll through options, browse for music, select from favorites, or change the audio source. In the main view, scroll to change the station or go to the next or previous track.

Navigation
If there is an active route, the Turn-by-Turn directions will appear on the Navigation Page, if there is no active route a compass will be displayed.

Phone
If there is no active phone call, view recent calls, or scroll through contacts..

Options
Use the thumbwheel to scroll through items in the Options menu.

Units: Choose US or metric units. A selected mark will be displayed next to the selected item.

Info Page Options: Select the items to be displayed in the Info app. A selected mark will be displayed next to the selected item.

Home Page Options: Select the available elements to display. Not all elements will be available on all vehicles: Speedometer, Active Safety, Speed Sign, Time, and Fuel Range.

Speed Warning: Allows the driver to set a speed that they do not want to exceed. To set the Speed Warning, press V when the Speed Warning is displayed. Use w or x to adjust the value. Press V to set the speed. Once the speed is set, this feature can be turned off by pressing V while viewing this page. If the selected speed limit is exceeded, a pop-up warning is displayed with a chime.

Traction and Stability: Press p to enter the Traction and Stability menu. To turn the Traction Control System (TCS) on or off, choose Traction. To turn StabiliTrak/ Electronic Stability Control (ESC) on or off, choose Stability. See Traction Control/ Electronic Stability Control

Software Information: Displays open-source software information.

Reset To Defaults : Allows the driver to reset to default settings.

Speedometer
The speedometer shows the vehicle speed in either kilometers per hour (km/h) or miles per hour (mph).

Odometer
The odometer shows how far the vehicle has been driven, in either kilometers or miles.
The odometer is always displayed in the bottom of the Driver Information Center (DIC).

Trip Odometer
The trip odometer shows how far the vehicle has been driven since the trip odometer was last reset.
The trip odometer is accessed and reset through the Driver Information Center (DIC).

Tachometer
The tachometer displays the engine speed in revolutions per minute (rpm).
For vehicles with the Stop/Start system, when the ignition is on, the tachometer indicates the vehicle status. When pointing to AUTO STOP, the engine is off but the vehicle is on and can move. The engine
could auto start at any time. When the indicator points to OFF, the vehicle is off.
When the engine is on, the tachometer will indicate the rpm. The tachometer may vary by several hundred rpm, during Auto Stop mode, when the engine is shutting off and restarting.

Fuel Gauge

2023 GMC Yukon XL Warning and Indicator Lights (3)

Metric 2023 GMC Yukon XL Warning and Indicator Lights (4)

When the ignition is on, the fuel gauge indicates the approximate amount of fuel left in the tank.

There is an arrow near the fuel gauge pointing to the side of the vehicle the fuel door is on.
When the indicator nears empty, the low fuel light comes on. There still is a little fuel left, but the vehicle should be refueled soon.
The fuel gauge may:

  • Take a little more, or less fuel to fill up than it indicates. For example, the gauge may have indicated the tank is half full, but it actually takes a little more, or less than half the tank’s capacity to fill
    the tank.
  • Moves a little while turning a corner, speeding up, or braking.
  • Takes a few seconds to stabilize after the ignition is turned on and goes back to empty when the ignition is turned off.

These are normal conditions, none of which indicate a problem with the fuel gauge.

Fuel Range
The estimated fuel range is located in the bottom center of the display. The fuel range is displayed with the approximate distance the vehicle can be driven without refueling.

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.

When the estimated fuel range is low, the range shows LOW and a message may also display in the Driver Information Center (DIC).

Engine Oil Pressure Gauge

2023 GMC Yukon XL Warning and Indicator Lights 26

Metric

2023 GMC Yukon XL Warning and Indicator Lights 25

English

This gauge displays while the lower gauges are configured to display four gauges. To change gauge configurations, see “Options” under Instrument Cluster.

The engine oil pressure gauge shows the engine oil pressure in kPa (kilopascals) or psi (pounds per square inch) when the engine is running.
Oil pressure can vary with engine speed, outside temperature, coolant temperature, and oil viscosity.
On some models, the oil pump will vary engine oil pressure according to engine needs. Oil pressure may change quickly as the engine speed or load varies. This is normal. If the oil pressure warning light or Driver Information Center (DIC) message indicates oil pressure outside the normal operating range, check the engine oil as soon as possible.

Caution
Lack of proper engine oil maintenance can damage the engine. Driving with the engine oil low can also damage the 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. 

If the vehicle has a diesel engine, see the Duramax diesel supplement.

Engine Coolant Temperature Gauge
2023 GMC Yukon XL Warning and Indicator Lights (5)

Metric

2023 GMC Yukon XL Warning and Indicator Lights (6)English

This gauge measures the temperature of the vehicle’s engine coolant.
While driving under normal operating conditions, if the needle moves into the red warning area, the engine is too hot. Pull off the road, stop the vehicle, and turn off the engine as soon as possible.

Transmission Temperature Gauge

2023 GMC Yukon XL Warning and Indicator Lights (5)

Metric 2023 GMC Yukon XL Warning and Indicator Lights (6)

English

This gauge displays while the vehicle is in
the Tow/Haul driver mode, and the lower
gauges are configured to display four
gauges. The transmission fluid temperature
is also selectable as Left/Right side info. To
change gauge configurations, see “Options”
under Instrument Cluster.

The transmission temperature gauge shows
the transmission fluid temperature. If the
gauge is reading in the red area and/or a
message appears in the Driver Information
Center (DIC), the vehicle must be stopped
and the cause checked. One possible cause is
a low fluid level in the transmission.

Caution
Do not drive the vehicle while the transmission fluid is overheating, or the transmission can be damaged. This could lead to costly repairs that would not be covered by the warranty.

Voltmeter Gauge
2023 GMC Yukon XL Warning and Indicator Lights (7)

This gauge displays while the lower gauges are configured to display four gauges. When the vehicle is in the Tow/Haul driver mode this gauge is replaced by the transmission temperature gauge. To change gauge configurations, see “Options” under Instrument Cluster.
When the ignition is on, this gauge indicates the battery voltage.
When the engine is running, this gauge shows the condition of the charging system.
The gauge can transition from a higher to lower or a lower to higher reading. This is normal. If the vehicle is operating outside the normal operating range, the charging system light comes on. See Charging System Light . The voltmeter gauge may also read lower when in fuel economy mode.
This is normal.
Readings outside the normal operating range can also occur when a large number of electrical accessories are operating in the vehicle and the engine is left idling for an extended period. This condition is normal since the charging system is not able to provide full power at engine idle. As engine
speeds are increased, this condition should correct itself as higher engine speeds allow the charging system to create maximum power.

The vehicle can only be driven for a short time with the readings outside the normal operating range. If the vehicle must be driven, turn off all accessories, such as the radio and air conditioner.
Readings outside the normal operating range indicate a possible problem in the electrical system. Have the vehicle serviced as soon as possible.

Seat Belt Reminders

Driver Seat Belt Reminder Light
There is a driver seat belt reminder light on the instrument cluster.2023 GMC Yukon XL Warning and Indicator Lights 29

When the vehicle is started, this light flashes and a chime may come on to remind the driver to fasten their seat belt. Then the light stays on solid until the belt is buckled. This cycle may continue several times if the driver remains or becomes unbuckled while the vehicle is moving. If the driver seat belt is buckled, neither the light nor the chime comes on.

Front Passenger Seat Belt Reminder Light
The vehicle may have a front passenger seat belt reminder light near the passenger airbag status indicator. See Passenger Sensing System.2023 GMC Yukon XL Warning and Indicator Lights 28When the vehicle is started, this light flashes and a chime may come on to remind passengers to fasten their seat belts. Then the light stays on solid until the belt is buckled. This cycle continues several times if the front passenger remains or becomes unbuckled while the vehicle is moving. If the front passenger seat belt is buckled, neither the chime nor the light comes on. The front passenger seat belt reminder light and chime may come on if an object is put on the seat such as a briefcase, handbag, grocery bag, laptop, or other electronic device. To turn off the reminder light and/or chime, remove the object from the seat or buckle the seat belt.

Airbag Readiness Light

This light shows if there is an electrical problem with the airbag system. It is located in the instrument cluster. The system check includes the airbag sensor(s), the passenger sensing system, the pretensioners, the airbag modules, the wiring, and the crash sensing and diagnostic module. For more information on the airbag system, see Airbag System.2023 GMC Yukon XL Warning and Indicator Lights 30The airbag readiness light comes on for several seconds when the vehicle is started. If the light does not come on then, have it fixed immediately.

Warning
If the airbag readiness light stays on after the vehicle is started or comes on while driving, it means the airbag system might not be working properly. The airbags in the vehicle might not inflate in a crash, or they could even inflate without a crash. To help avoid injury, have the vehicle serviced right away.

If there is a problem with the airbag system, a Driver Information Center (DIC) message may also come on.

Passenger Airbag Status Indicator

The vehicle has a passenger sensing system. See Passenger Sensing System 0 54 for important safety information. The overhead console has a passenger airbag status indicator.2023 GMC Yukon XL Warning and Indicator Lights (8)When the vehicle is started, the passenger airbag status indicator will light ON and OFF, and the symbols for on and off, for several seconds as a system check. Then, after several more seconds, the status indicator will light either ON or OFF, and either the on or off symbol, to let you know the status of the front outboard passenger frontal airbag. If the word ON, and the on symbol, are lit on the passenger airbag status indicator, it means that the front outboard passenger frontal airbag is allowed to inflate.
If the word OFF, and the off symbol, are lit on the passenger 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.

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 0 99 for more information, including important safety information.

Charging System Light2023 GMC Yukon XL Warning and Indicator Lights (8)

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.
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. Find a safe place to stop the vehicle.

Malfunction Indicator Lamp (Check Engine Light)

This light is part of the vehicle’s emission control onboard diagnostic system. If this light is on while the engine is running, a malfunction has been detected and the vehicle may require service. The light should come on to show that it is working when the ignition is in Service Mode. See Ignition Positions.2023 GMC Yukon XL Warning and Indicator Lights 35Malfunctions are often indicated by the system before any problem is noticeable. Being aware of the light and seeking service promptly when it comes on may prevent damage.

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

Caution
Modifications to the engine, transmission, exhaust, intake, or fuel system, or the use of replacement tires that do not meet the original tire specifications, can cause this light to come on. This could lead to costly repairs not covered by the vehicle warranty. This could also affect the vehicle’s ability to pass an Emissions Inspection/Maintenance test. See Accessories and Modifications 0 261.

Light Flashing
If the light is flashing: A malfunction has been detected that could damage the emission control system and increase vehicle emissions. Diagnosis and service may be required. To help prevent damage, reduce vehicle speed and avoid hard accelerations and uphill grades. If towing a trailer, reduce the amount of cargo being hauled as soon as
possible. If the light continues to flash, find a safe place to park. Turn the vehicle off and wait at least 10 seconds before restarting the engine. If the light is still flashing, follow the previous guidelines and see your dealer for service as soon as possible.

Light on Steady
If the light is on steady: A malfunction has been detected. Diagnosis and service may be required. Check the following:

  • If fuel has been added to the vehicle using the capless funnel adapter, make sure that it has been removed. See “Filling the Tank with a Portable Gas Can” under Filling the Tank 0 250. The diagnostic system can detect if the adapter has been left installed in the vehicle, allowing fuel to evaporate into the atmosphere. A few driving trips with the adapter removed may turn off the light.
  • Poor fuel quality can cause inefficient engine operation and poor driveability, which may go away once the engine is warmed up. If this occurs, change the fuel brand. It may require at least one full tank of the proper fuel to turn the light off. See Recommended Fuel 0 249.

If the light remains on, see your dealer.

Emissions Inspection and Maintenance Programs

If the vehicle requires an Emissions Inspection/Maintenance test, the test equipment will likely connect to the vehicle’s Data Link Connector (DLC).2023 GMC Yukon XL Warning and Indicator Lights (9)The DLC is under the instrument panel to the left of the steering wheel. Connecting devices that are not used to perform an Emissions Inspection/Maintenance test or to service the vehicle may affect vehicle operation. See Add-On Electrical Equipment 0 259. See your dealer if assistance is needed. The vehicle may not pass inspection if:

  • The light is on when the engine is running.
  • The light does not come on when the ignition is in Service Mode.
  • Critical emission control systems have not been completely diagnosed. If this happens, the vehicle will not be ready for inspection and might require several days of routine driving before the system is ready for inspection. This can happen if the 12-volt battery has recently been replaced or run down, or if the vehicle has been recently serviced.

See your dealer if the vehicle will not pass or cannot be made ready for the test.

Brake System Warning Light2023 GMC Yukon XL Warning and Indicator Lights 42

English 2023 GMC Yukon XL Warning and Indicator Lights 41

Metric

This light comes on briefly when the vehicle is turned on to show that the light is working. If it does not come on then, have it fixed so it will be ready to warn you if there is a problem.
If the light comes on and stays on, there is a brake problem. Have the brake system inspected right away. This light may come on if the brake fluid is low. 
If the light comes on while driving, pull off the road and stop carefully. If equipped with an electric brake boost, vehicle speed may be limited when the brake system warning light comes on. The brake pedal might be harder to push, or the brake pedal may go closer to the floor. It could take longer to stop. If the light is still on, have the vehicle towed for service. See Transporting a Disabled Vehicle.

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.

Electric Parking Brake Light2023 GMC Yukon XL Warning and Indicator Lights 35

Metric

2023 GMC Yukon XL Warning and Indicator Lights 44

English

This light comes on when the parking brake is applied. If the light continues flashing after the parking brake is released, or while driving, there is a problem with the Electric Parking Brake system. A message may also be displayed in the Driver Information Center (DIC). If the light does not come on or remains flashing, see your dealer.

Service Electric Parking Brake Light2023 GMC Yukon XL Warning and Indicator Lights 31

This light should come on briefly when the vehicle is turned on. If it does not come on, have it fixed so it will be ready to warn if there is a problem. If this light stays on or comes on while driving, there is a problem with the Electric Parking Brake (EPB). Take the vehicle to a dealer as soon as possible. In addition to the parking brake, other safety functions that utilize the EPB may also be degraded. A message may also be displayed in the Driver Information Center (DIC).

Antilock Brake System (ABS) Warning Light2023 GMC Yukon XL Warning and Indicator Lights 46

This light comes on briefly when the vehicle is turned on to show that the light is working. If it does not come on then, have it fixed so it will be ready to warn you if there is a problem. If the ABS warning light stays on or comes on again while driving, the vehicle needs service. A chime may also sound when the light stays on. If the ABS warning light is the only light on, the vehicle has regular brakes, but ABS is not functioning. If both the ABS warning light and the brake system warning light are on, ABS is not functioning and there is a problem with the regular brakes. See your dealer for service. 

Hill Descent Control Light

If equipped, the Hill Descent Control light comes on when the system is ready for use. When the light flashes, the system is active. See Hill Descent Control (HDC) 0 217.

Lane Keep Assist (LKA) Light2023 GMC Yukon XL Warning and Indicator Lights 60

If equipped, the Lane Keep Assist Light may display the following colors:

  • Blank: LKA is disabled.
  • White: Appears when the vehicle starts. A steady white light indicates that LKA is not ready to assist.
  • Green: Appears when LKA is turned on and ready to assist. LKA will gently turn the steering wheel if the vehicle approaches a detected lane marking.
  • Amber: This appears when LKA is active. The light flashes amber as a Lane Departure Warning (LDW) alert to indicate that the lane marking has been unintentionally crossed. If the system detects you are steering intentionally (to pass or change lanes), the LDW alert may not display.

LKA will not assist or alert if the turn signal is active in the direction of lane departure, or if LKA detects that you are accelerating, braking, or actively steering.

Vehicle Ahead Indicator2023 GMC Terrain-Warning and Indicator Lights-fig 32

If equipped, this indicator will display green when a vehicle is detected ahead. See Forward Collision Alert (FCA) System.

Pedestrian Ahead Indicator2023 GMC Yukon XL Warning and Indicator Lights 50

If equipped, this indicator will display amber when a nearby pedestrian is detected in front of the vehicle.

Traction Off Light2023 GMC Terrain-Warning and Indicator Lights-fig 34

This light comes on briefly when the vehicle is turned on to show that the light is working. If it does not come on then, have it fixed so it will be ready to warn you if there is a problem. The traction off light comes on when the Traction Control System (TCS) has been turned off. If StabiliTrak/Electronic Stability Control (ESC) is turned off, TCS is also turned off. To turn TCS and ESC off and on, see Traction Control/Electronic Stability Control. If TCS is off, wheel slip during acceleration is not limited unless necessary to help protect the driveline from damage. Adjust driving accordingly

StabiliTrak OFF Light2023 GMC Yukon XL Warning and Indicator Lights (3)

This light comes on briefly when the vehicle is turned on to show that the light is working. If it does not come on then, have it fixed so it will be ready to warn you if there is a problem. This light comes on when the StabiliTrak/ Electronic Stability Control (ESC) system is turned off. If StabiliTrak/ESC is off, the Traction Control System (TCS) is also off. To turn ESC off and on, see Traction Control/ Electronic Stability Control 0 214. If ESC and TCS are off, the systems do not assist in controlling the vehicle. Adjust driving accordingly.

Traction Control System (TCS)/ StabiliTrak Light2023 GMC Yukon XL Warning and Indicator Lights (3)

This light comes on briefly when the vehicle is turned on to show that the light is working. If it does not come on then, have it fixed so it will be ready to warn you if there is a problem. If the light is on and not flashing, the TCS and potentially the StabiliTrak/ESC system are not fully operational and may not assist in maintaining control. Adjust driving accordingly. If the condition persists, see your dealer as soon as possible. A Driver Information Center (DIC) message may be displayed. The light flashes when the TCS and/or the StabiliTrak/ESC system is actively working. See Traction Control/Electronic Stability Control 0 214.

Driver Mode Control Light2023 GMC Yukon XL Warning and Indicator Lights (5)

If equipped, this light comes on when the Tow/Haul Mode is selected. See Driver Mode Control.

Tire Pressure Light2023 GMC Terrain-Warning and Indicator Lights-fig 38

If equipped with the Tire Pressure Monitor System (TPMS), this light comes on briefly when the vehicle 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 be displayed. Stop as soon as possible, and inflate the tires to the pressure value shown on the Tire and Loading Information label. See Tire Pressure 0 294. 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 every time the vehicle is started.

Engine Oil Pressure Light
Caution
Driving the vehicle with low engine oil pressure can damage the engine and the repairs would not be covered by the vehicle warranty.
If the engine oil pressure light comes on while driving:

  1. Stop in a safe location and turn off the engine.
  2. Check the oil level.
  3. Add oil if the oil level is below the normal operating range.
  4. Restart the vehicle. If the engine oil pressure light stays on for more than 10 seconds, turn the vehicle back off. Do not restart the vehicle. See your dealer for service.2023 GMC Yukon XL Warning and Indicator Lights 48

This light should come on briefly when the engine starts. When the engine is off and the vehicle is on, the light should remain illuminated. If it does not come on under either condition, contact your dealer. If the light comes on and stays on when the engine is running, it may not have adequate oil pressure. The oil level may be low or there may be some other oil system problem. Turn the engine off when it is safe to do so and contact your dealer

Low Fuel Warning Light

A Low Fuel Warning Light near the fuel gauge comes on briefly when the ignition is turned on as a check to show it is working.

Security Light2023 GMC Yukon XL Warning and Indicator Lights 12

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.

High-Beam On Light2023 GMC Yukon XL Warning and Indicator Lights 50

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

IntelliBeam Light2023 GMC Yukon XL Warning and Indicator Lights 15

This light comes on when the IntelliBeam system if equipped, is enabled. See Exterior Lamp Controls.

Front Fog Lamp Light

2023 GMC Yukon XL Warning and Indicator Lights 53

For vehicles with fog lamps, this light comes on when the fog lamps are turned on. The light goes out when the fog lamps are turned off. See Fog Lamps

Lamps On Reminder

2023 GMC Yukon XL Warning and Indicator Lights 52

This light comes on when the exterior lamps are in use, except when only the Daytime Running Lamps (DRL) are active. See Exterior Lamp Controls.

Cruise Control Light2023 GMC Yukon XL Warning and Indicator Lights 56

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.

Adaptive Cruise Control Light

2023 GMC Yukon XL Warning and Indicator Lights 22This light is white when the Adaptive Cruise Control (ACC, if equipped) is on and ready, and turns green when the ACC is set and active.

Curve Speed Control Light

2023 GMC Yukon XL Warning and Indicator Lights 50

If equipped, this light may illuminate green when ACC is actively controlling the vehicle speed and detects a sharp curve on the road ahead.
ACC automatically slows the vehicle down while navigating the curve and may increase speed out of the curve, but will not exceed the set speed.

Super Cruise Light

2023 GMC Yukon XL Warning and Indicator Lights 223

This light comes on to show the status of Super Cruise.

Door Ajar Light2023 GMC Yukon XL Warning and Indicator Lights 54

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. The displays show the status of many vehicle systems.
If the vehicle has a diesel engine, see the Duramax diesel supplement.
2023 GMC Yukon XL Warning and Indicator Lights 21
2023 GMC Yukon XL Warning and Indicator Lights 57 Press to move left or right
between the interactive display zones in the
instrument cluster. Press the thumbwheel to
select.
2023 GMC Yukon XL Warning and Indicator Lights 58Use the thumbwheel to scroll up
or down in a list. Press the thumbwheel to
open a menu or select a menu item. Press
and hold to reset values on certain screens.

Info Page Options
The info pages on the DIC can be turned on
or off through the Options menu.

  1. Press 2023 GMC Yukon XL Warning and Indicator Lights 57to scroll to the Options
    application.
  2. Scroll 2023 GMC Yukon XL Warning and Indicator Lights 58to choose Info pages and
    press the thumbwheel.
  3. Scroll w or x to move through the list of possible information displays.
  4. Press the thumbwheel, while an item is highlighted, to select or deselect that item.

The info pages can also be turned on or off through the DIC page Info Page Options.

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 Options app. See “Info Page Options” earlier in this section.
Speed : Shows the vehicle speed in either kilometers per hour (km/h) or miles per hour (mph).
Drive Summary : Displays the current distance traveled, in either kilometers (km) or miles (mi).
It also includes the Average Fuel Economy.
Average Fuel Economy shows the approximate average liters per
100 kilometers (L/100 km), kilometers per liter (km/L), or miles per gallon (mpg). This number only reflects the approximate.

Average Fuel Economy that the vehicle has at that moment, and changes as driving conditions change.
The timer shows the time in the current drive cycle.
All values in the Drive Summary are automatically reset each time the vehicle is started.

Trip 1 or Trip 2, 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.
The Average Fuel Economy display shows the approximate average liters per 100 kilometers (L/100 km), kilometers per liter (km/L), or miles per gallon (mpg). This number is calculated based on the value recorded since the last time this menu item was reset. This number reflects only the approximate average fuel economy that the vehicle has at that moment, and changes as driving conditions change.
Average Speed shows the average speed of the vehicle in kilometers per hour (km/h) or miles per hour (mph). This average is calculated based on various vehicle speeds recorded since the last reset of this value.

FAQs

What does the check engine light indicate?

Usually, the check engine light indicates a problem with the emission control system or engine. To find the precise issue, it is advised to have it diagnosed by a mechanic.

Why is the battery light on?

A potential issue with the charging system could be indicated by the battery light. A malfunctioning alternator, battery, or other associated parts could be the cause. In order to avoid a breakdown, immediate attention is recommended.

What should I do if the oil pressure light comes on?

Check the oil level and stop the car right away in a safe place. Serious engine damage can result from low oil pressure. If the level is acceptable, get expert help.

What does the ABS warning light mean?

An issue with the system is indicated by the ABS (Anti-lock Braking System) light. The vehicle’s basic brakes should still work, but an expert inspection of the ABS system is imperative.

What does the tire pressure monitoring system (TPMS) light signify?

When a tire has too little air pressure, the TPMS light comes on. As soon as you can, check the tire pressure and replace it to the recommended level.

Why is the traction control light on?

A problem with the vehicle’s traction control system is indicated by the traction control light. It may have an impact on traction and stability, particularly in slick circumstances. It is advised to get a professional diagnosis.

What should I do if the airbag light is illuminated?

An issue with the airbag system may be indicated by the airbag light. Have an authorized technician examine the system to make sure your airbags are operating properly.

What does the coolant temperature warning light mean?

When it’s safe to do so, stop the engine and allow it to cool. Verify the coolant levels and fix any leaks or issues. The engine is overheating, as indicated by the coolant temperature warning light. When it’s safe to do so, stop the engine and allow it to cool. Verify the coolant levels and fix any leaks or issues.

Why is the fuel cap warning light on?

When the fuel cap is not securely fastened, the warning light for the fuel cap illuminates. To avoid fuel system problems, tighten the fuel cap until it clicks.

What does the lane departure warning light indicate?

When an automobile inadvertently leaves its lane without turning on its lights, you are alerted by the lane departure warning light. It serves as a prompt to pay attention and stay in your lane.

Why is the service vehicle soon light on?

When one or more vehicle systems require maintenance, the service vehicle soon light alerts the driver. It is recommended that the car be examined by a qualified mechanic.

What does the blind spot monitoring light signify?

The driver is made aware of vehicles in their blind spot by the blind spot monitoring light. It stays on to alert drivers to check their blind spots before changing lanes when a vehicle is detected.

Why is the low washer fluid light illuminated?

The windshield washer fluid is low, as indicated by the low washer fluid light. To guarantee unobstructed vision, replenish the washer fluid reservoir.

What should I do if the power steering warning light is on?

A problem with the power steering system is indicated by the power steering warning light. To avoid any steering issues, drive carefully and get it inspected right away.

Why is the electronic stability control (ESC) light on?

An issue with the vehicle’s electronic stability control system is indicated by the ESC light. To preserve the stability and safety of the vehicle, it must be inspected.

Useful Link

View Full PDF: 2023 GMC Yukon XL System Guidelines| Auto User Guide 2023 GMC Yukon XL Instrument Panel Instructions