2023 GMC Hummer EV Warning and Indicator Lights

The 2023 GMC Hummer EV is a landmark achievement in the world of electric vehicles, combining the rugged and imposing appearance of the iconic Hummer with cutting-edge electric technology. The vehicle’s inventive engineering and advanced features enable it to be equipped with an extensive array of warning and indicator lights to keep the driver informed of the status of the various vehicle systems. While driving the Hummer EV, these lights serve as essential communication instruments to ensure your safety, performance, and efficiency.

This guide will examine the warning and indicator lighting of the 2023 GMC Hummer EV, explaining what they mean and how to respond. Whether you’re traversing off-road terrain or city streets, familiarity with these indicators is essential for a smooth and reliable driving experience in this innovative electric vehicle. So, let’s delve into the realm of the warning and indicator lights on the 2023 GMC Hummer EV and equip you with the knowledge you need to make the most of this remarkable vehicle.

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 Cluster
The instrument cluster displays a preview of information including electric range, charging, odometer, and battery status when the driver door is opened, before starting the vehicle. This preview dismisses after starting the vehicle or soon after closing the driver door.

English Base Level Shown, Metric Similar

1. Driver Information Center (DIC)
2. Power Indicator Gauge
3. Speedometer
4. Battery Gauge (High Voltage)

Reconfigurable Instrument Cluster
The instrument cluster layout can b changed. There are five display configurations to choose from: Lunar, Clean, Sport, Off-Road, and Digital. Use the steering wheel control to move between the different display zones and scroll through the different displays. See “Display Layout” under “Options.”

Lunar configuration displays the speedometer, battery gauge, and power indicator gauge in the center of the display. There are two DIC areas on the left and right of the display.

• Clean configuration is a simplified display that has the speedometer on the top center. The battery gauge is located below the speedometer. There is one DIC area to the far right of the display.
• Sports configuration displays the speedometer in the center of the display. The battery gauge is located below the speedometer and the power indicator gauge is above it. There are two DIC areas on the left and right of the display.
• Off-road configuration displays the speedometer in the top center. The battery gauge is located on the bottom left side of the display and the power indicator gauge is on the bottom right side. There are three DIC areas in the left, right, and center of the display.
• Digital configuration displays the speedometer in the center of the display. The battery gauge is located on the far left of the display and the power indicator gauge is on the far right. There are two DIC areas to the left and right of the speedometer.

Acceleration Mode (Watts to Freedom)
While in Acceleration Mode, the speedometer will appear in the center of the display with the battery gauge below it a the torque gauge above it. There are two DIC areas on the left and right of the display.
Follow the prompts on the instrument cluster. See Acceleration Mode (Watts to Freedom) .

Launch Status
Lowering: Vehicle ride height is lowered to optimize weight transfer. Keep doors closed and watch your surroundings.

Standby: Watts to Freedom is prepared for the vehicle to come to a stop.

Cooling: The battery system is cooling for maximum torque delivery.

Warming: The battery system is warming up for maximum torque delivery.

Ready: The system is prepared for launch.
Press the brake with your left foot and follow the instructions shown in the instrument cluster.

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

Use the right steering wheel control to open and scroll through the different items and displays.
Press to access the instrument cluster applications. Use the thumbwheel to scroll through the list of available applications.
Press the switch 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) (Base Level) 0 130 or Driver Information Center DIC) (Uplevel)
• 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
Browse music, select from the favorites, or change the audio source. Move 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
Move to scroll through items in the Options menu.

Display Layout: Choose Lunar, Clean, Sport, Off-Road, and Digital layout by pressing the switch while the desired item is highlighted. Exit the Layout menu by pressing

Left/Right Side Info: Press the switch to select the items to be displayed in the display areas. See “Left/Right Side Info” previously in this section. .

Info Page Options: Press the switch to select the items to be displayed in the Info app. See Driver Information Center (DIC) .

Units: Choose US or metric units by pressing the switch while the desired item is highlighted.

Speed Warning: Press the switch when Speed Warning is displayed to set the Speed Warning. Move to adjust the value and press the switch to set the speed.
The Speed Warning display allows the driver to set a speed that they do not want to exceed. Once the speed is set, this feature can be turned off by pressing while viewing this page. If the selected speed limit is exceeded, a pop-up warning is displayed with a chime.

Speed Sign Display: Press the switch while the desired item is highlighted to turn on or off. Shows sign information, which comes from a roadway database in the onboard navigation system if equipped.
The sign will show “− −” when offline maps are unavailable. See Maps

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.

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).
See Driver Information Center (DIC) (Base Level)  or Driver Information Center (DIC) (Uplevel) .

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.

Battery Gauge (High Voltage

Metric Lunar Battery Gauge Shown, Others Similar

English Lunar Battery Gauge Shown, Others Similar

This displays the high voltage battery state of charge. The value at the bottom is an estimate of how far the vehicle can be driven on the remaining charge based on recent driving habits, conditions, and HVAC usage.

The fill bars shown inside of the gauge indicate the percentage range as estimated from current vehicle conditions and climate settings. The range estimate on the bottom also may be affected by climate settings, current vehicle conditions and ambient conditions. The estimated range may increase and decrease based on climate control energy consumption.
Driving at sustained high speeds, driving aggressively through hard acceleration and/or braking events, excessive HVAC usage, using heated or cooled seats, battery preconditioning, and performance modes can affect vehicle range estimates.
When the high voltage battery state of charge level gets low, the gauge will change color to amber. When the charge is very low the gauge will flash, and the estimated range value on the bottom will change to LOW. Additional alerts may display and a sound may also be heard at low state of charge.

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.

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

Engine Coolant Temperature Gauge

Lunar Power Indicator Gauge Shown, Others Similar

The power indicator gauge is in the center of the display to the right of the speedometer in the Lunar layout.
This gauge displays the instantaneous charge and consumption power of the high voltage battery. Maximum power consumption is available when the high voltage battery is fully charged. During normal operation, a slight reduction in consumption power may occur as the high voltage battery state of charge decreases.

Regenerative Braking
When regenerative braking is active, the regen battery icon appears green and will show a green tail on the fill bar. The power indicator gauge value shows the amount of instantaneous power being regenerated.

Regenerative Power Limited
Regenerative power may be limited when the high voltage battery is near full charge or cold. This will affect the vehicle’s maximum regenerative braking power.

Watts To Freedom

Acceleration Mode Torque Gauge Shown

1. Progress Bar
2. Active Torque
3. Freedom Zone
4.  
5. Peak Hold Bar

The power indicator gauge is replaced with the torque gauge while in Acceleration Mode. It is located centered on the top of the display. Follow the prompts on the instrument cluster. See Acceleration Mode (Watts to Freedom) .

Preparing : While the vehicle is preparing the progress bars fill and appear blue. Complete : As the vehicle has completed preparation the progress bars show full with a white line separating the active torque fill from the freedom zones.

Ready: When the vehicle is stopped and ready the white line disappears, and the progress bars remain blue until the active torque crosses into freedom zones.

Launch: As the vehicle launches the active torque moves into the freedom zones and the progress bars become orange. The peak hold bars appear at the leading edge of the active torque.

Torque Ramp Down: When the torque is ramping down the peak bars are held where the active torque peaked.

Freedom Zones Vacated: While the freedom zones are vacated nothing further happens until the launch run is exited and the throttle is lifted.

Throttle Lifted: As the throttle is lifted the white lines close off the freedom zones. The active torque decreases and the orange bars turn back to blue to reflect the current preparation state.

Peak Bars Removed: Finally, the peak hold bars are removed after the vehicle exits the launch run.

Seat Belt Reminders

Driver Seat Belt Reminder Light
There is a driver seat belt reminder light on the instrument cluster.

When the vehicle is started, this light flashes and a chime may come on to remind 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.

Uplevel
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 (Base Level) or Instrument Cluster (Uplevel) .

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

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.

The 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 for important safety information. The overhead console has a passenger airbag status indicator.

United States

Canada

When the vehicle is started, the passenger airbag status indicator will light ON and OFF, or 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, or either the on or off symbol, to let you know the status of the front outboard passenger frontal airbag.
If the word ON, or the on symbol, is lit on the passenger airbag status 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 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, or if the airbag readiness light is on, there may be a problem with the lights or the passenger sensing system. See your dealer for service right away.

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 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.

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 on and the engine is not running.

Malfunctions 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.

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.

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 (Pickup Model) or Filling the Tank (Chassis Cab Model). 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 (6.2L V8 Engine)  or Recommended Fuel (2.7L L4 and 5.3L V8 Engines).
  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).
•  
• 
• 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. 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 on while the engine is off.

Critical emission control systems have not been completely diagnosed. If this happens, the vehicle would 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 Light

English

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. See Brake Fluid.
If the light comes on while driving, pull off the road and stop carefully. If equipped with 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.

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 Light

Metric 

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 Light

This light may 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 display in the Driver Information Center (DIC). See Electric Parking Brake .

Antilock Brake System (ABS) Warning Light

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.
Engagement of the 4WD front axle lock will disable ABS and illuminate the ABS warning light. The ABS warning light will turn off when the front axle lock is disengaged.
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.

Four-Wheel-Drive Light

Automatic Emergency Braking (AEB) Disabled Light

This indicator displays when you turn off Automatic Emergency Braking (AEB) or Front Pedestrian Braking (FPB).
This indicator will also display if AEB or FPB is unavailable due to malfunction, weather \conditions, or if the windshield is not clean. See Automatic Emergency Braking (AEB).
See Front Pedestrian Braking (FPB) System.

Curve Speed Control Light

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.
See Adaptive Cruise Control (Camera).

Vehicle Ahead Indicator

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.

Pedestrian Ahead Indicator

If equipped, this indicator will display amber when a nearby pedestrian is detected in front of the vehicle.
See Front Pedestrian Braking (FPB) System.

Traction Off Light

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 Light

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.
If ESC and TCS are off, the systems do not assist in controlling the vehicle. Adjust driving accordingly.

Traction Control System (TCS)/ StabiliTrak Light

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 display.
The light flashes when the TCS and/or the StabiliTrak/ESC system is actively working.

Trailer Sway Control Light

This light will flash when Trailer Sway Control is active. See Trailer Sway Control (TSC) .

Driver Mode Control Light

This light comes on when the Tow/Haul Mode is selected.

This light comes on when Off-Road Mode is selected.

This light comes on when Terrain Mode is selected.

This light comes on when My Mode is selected. See Driver Mode Control 0 194.

Four-Wheel Steering Light (CrabWalk Light

 

This light is amber when Rear Wheel Steering is off.

This light is amber when CrabWalk Mode is active.

Air Suspension Light

This light comes on when the air suspension is raised to Extract Mode.

This light comes on when the air suspension is raised to increased ground clearance height.
It will flash white and give an alert to indicate that the vehicle is changing to a higher ride height.

This light comes on when the air suspension is lowered for easy entry and exit from the vehicle, or when Acceleration Mode (Watts to Freedom) is activated.
It will flash white and give an alert to indicate that the vehicle is changing to a lower ride height.

This light comes on when the air suspension is in Service Mode or Alignment Mode

Tire Pressure Light

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.

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. See Tire Pressure Monitor Operation.

Security Light

The security light should come on briefly as the vehicle 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 vehicle does not start, there could be a problem with the theft-deterrent system. See Immobilizer Operation.

Vehicle Ready Light

The vehicle ready light comes on whenever the vehicle is parked and ready to be driven.

High-Beam On Light

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

IntelliBeam Light
If equipped, this light comes on when the IntelliBeam system is enabled. See Exterior Lamp Controls.

Lamps On Reminder

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 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.

Adaptive Cruise Control Light

This 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

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. See Adaptive Cruise Control (Advanced)

Super Cruise Light

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

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.

FAQ’s

Useful Link

View Full PDF: GMC Hummer EV 2023 User Guide | Auto User Guide
Seats and Seat Belt: 2023 GMC Hummer EV Seats and Seat Belt Installation Guide