GMC Hummer EV 2023 Essential Operating and Safety Information

The 2023 GMC Hummer EV is a first-of-its-kind all-electric truck that blends toughness, green technology, and high-tech safety features. The Hummer EV stands out on and off the road because of its bold and unique style. It has GM’s Ultium battery technology, which gives it great power, fast torque, and a long range. The Hummer EV has some unique features, like CrabWalk, which lets the car move in a lateral direction, and Extract Mode, which raises the suspension for better off-road performance. Safety is the most important thing, and the Hummer EV has advanced driver-assistance systems like automatic emergency braking, forward crash warning, and lane-keeping assist to make driving safe and easy. The 2023 GMC Hummer EV is the start of a new age of environmentally friendly and exciting off-road adventures. It changes what an electric truck can do.

2023 GMC TERRAIN Specs, Price, Features and Mileage (Brochure)

Information

Up-to-date versions of the Owner’s Manual are also accessible at www.gmc.com and on the myGMC mobile app.
To view digital versions or to order printed versions of the Owner’s Manual or warranty information, or to view additional vehicle information, scan the code below or visit gmc.com/support (U.S.)

Keep this manual in the vehicle for quick reference.
The names, logos, emblems, slogans, vehicle model names, and vehicle body designs appearing in this manual including, but not limited to, GM, the GM logo, GMC, the GMC Truck Emblem, and HUMMER are trademarks and/or service marks of General Motors LLC, its subsidiaries, affiliates, or licensors.

Canadian Vehicle Owners
A French language manual can be obtained from your dealer, at www.helminc.com, or from:
To quickly locate information about the vehicle, use the Index in the back of the manual. It is an alphabetical list of what is in the manual and the page number where it can be found.

Danger, Warning, and Caution
Warning messages found on vehicle labels and in this manual describe hazards and what to do to avoid or reduce them.

Symbols
The vehicle has components and labels that use symbols instead of text. Symbols are shown along with the text describing the operation or information relating to a specific component, control, message, gauge, or indicator.

• M: Shown when the owner’s manual has additional instructions or information.
• *: Shown when the service manual has additional instructions or information.
• 0: Shown when there is more information on another page — “see page.”

Vehicle Symbol Chart
Here are some additional symbols that may be found on the vehicle and what they mean. See the features throughout the owner’s manual for more information.

• u: Air Conditioning System
• G: Air Conditioning Refrigerant Oil
• 9: Airbag Readiness Light

The vehicle has components and labels that use symbols instead of text. Symbols are shown along with the text describing the operation or information relating to a specific component, control, message, gauge, or indicator.

• M: Shown when the owner’s manual has additional instructions or information.
• *: Shown when the service manual has additional instructions or information.
• 0: Shown when there is more information on another page — “see page.”

Vehicle Symbol Chart
Here are some additional symbols that may be found on the vehicle and what they mean. See the features throughout the owner’s manual for more information.

• u: Air Conditioning System
• G: Air Conditioning Refrigerant Oil
• 9: Airbag Readiness Light

 Antilock Brake System (ABS)

• $: Brake System Warning Light
• 9: Dispose of Used Components Properly
• P: Do Not Apply High-Pressure Water
• [: Energy Usage and Charge Mode

Selection

• _: Flame/Fire Prohibited
• H: Flammable
• g: First Responder
• [: Forward Collision Alert
• R: Fuse Block Cover Lock Location
• +: Fuses
• _: High Voltage
• j: ISOFIX/LATCH System Child Restraints
• Q: Keep Fuse Block Covers Properly

Installed

• |: Lane Change Alert
• @: Lane Departure Warning
• A: Lane Keep Assist

Park Assist

• ~: Pedestrian Ahead Indicator
• O: Power
• 7: Rear Cross Traffic Alert
• I: Registered Technician
• /: Remote Vehicle Start
• h: Risk of Electrical Fire
• >: Seat Belt Reminders
• Z: Service Vehicle Soon
• I: Side Blind Zone Alert
• 7: Tire Pressure Monitor
• d: Traction Control/StabiliTrak/Electronic

Stability Control (ESC)

• a: Under Pressure
• k: Vehicle Ahead Indicator
• ]: Vehicle Ready

Keys and Locks

Leaving children in a vehicle with a remote key is dangerous and children or others could be seriously injured or killed. They could operate the power windows or other controls or make the vehicle move. The windows will function with the remote key in the vehicle, and children or others could be caught in the path of a closing window. Do not leave children in a vehicle with a remote key The mechanical key inside the remote key is used for the driver door and glove box. To remove the mechanical key, press the button on the side of the remote key near the bottom, and pull the mechanical key out. Never pull the mechanical key out without pressing the button. The mechanical key may have a bar-coded key tag that the dealer or qualified locksmith can use to make new keys. store this information in a safe place, not in the vehicle. See your dealer if a replacement key or additional key is needed. If it becomes difficult to turn a key, inspect the key blade for debris. Periodically clean with a brush or pick. With an active OnStar or connected service plan, an OnStar Advisor may remotely unlock the vehicle. See your owner’s manual. If locked out of the vehicle, see Roadside Assistance Program 0 131. If equipped with memory seats, remote keys 1 and 2 are linked to seating positions of memory 1 or 2. See Memory Seats 0 14.

Warning
Unlocked doors can be dangerous. Passengers, especially children, can easily open the doors and fall out of a moving vehicle. The doors can be unlocked and opened while the vehicle is moving. The chance of being thrown out of the vehicle in a crash is increased if the doors are not locked. So, all passengers should wear seat belts properly and the doors should be locked whenever the vehicle is driven.

Warning (Continued)
Young children who get into unlocked vehicles may be unable to get out. A child can be overcome by extreme heat and can suffer permanent injuries or even death from heat stroke. Always lock the vehicle whenever leaving it. Outsiders can easily enter through an unlocked door when you slow down or stop the vehicle. Locking the doors can help prevent this from happening.

FAQ