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GMC Hummer EV Pickup and Hummer EV SUV: Battery Warranty

Model years

ModelModel years
Hummer EV Pickup2022, 2023, 2024, 2025, 2026
Hummer EV SUV2024, 2025, 2026

Battery coverage by model year

Model yearBooklet readTermCapacity floor
2022First printing, 15835627A (September 2021)8 years or 100,000 miles, whichever comes firstReplaced or repaired if capacity falls below 60% of its original value during the warranty period
2022December 2024 edition, 15835627B8 years or 100,000 miles, whichever comes firstReplaced or repaired if capacity falls below 75% of its original value during the warranty period
2023December 2024 edition, 16589939B8 years or 100,000 miles, whichever comes firstReplaced or repaired if capacity falls below 75% of its original value during the warranty period
2024January 2025 edition, 17267651C8 years or 100,000 miles, whichever comes firstReplaced or repaired if capacity falls below 75% of its original value during the warranty period
202518455115A (May 2024)8 years or 100,000 miles, whichever comes firstReplaced or repaired if capacity falls below 75% of its original value during the warranty period
202619680588B8 years or 100,000 miles, whichever comes firstReplaced or repaired if capacity falls below 75% of its original value during the warranty period

GMC's manuals page lists both 2022 printings for the 2022 Hummer EV.

Coverage at a glance

Model years 2022 through 2026:

ItemAnswer
What is covered, 2022 and 2023Propulsion battery pack and all internal components
What is covered, 2024Defects related to materials or workmanship to the propulsion battery pack and its internal components
What is covered, 2025 and 2026The propulsion battery pack and its internal components
Who judges the capacity floorA certified dealer
Battery fitted below the floorOne appropriate for the age and mileage of the vehicle
Repair partsNew or refurbished components, at GMC's discretion, for a propulsion battery that needs service due to a defect in materials or workmanship
Where repairs are done, 2022 through 2024An EV Certified GMC dealer facility
Where repairs are done, 2025 and 2026An authorized GMC dealership
Cost to the ownerWarranty repairs, including towing, parts and labor, at no charge
Towing, 2022 through 2024To the nearest EV Certified GMC dealer during the 8 years or 100,000 miles, if the vehicle cannot be driven because of a warranted Electric specific defect
Clock startsThe date the vehicle is first delivered or put in use

Transfer to a later owner

Model yearAnswer
2022Provided to the original and any subsequent owners during the warranty period; the electric vehicle coverage is transferable at no cost to any subsequent owner within the 8 years or 100,000 miles, with no deductibles
2023 (December 2024 edition)Transferable at no cost to any subsequent owner within the 8 years or 100,000 miles, with no deductibles; "Certain Electric Vehicle Propulsion Coverages will be VOIDED if ownership of the vehicle is transferred from the original owner within the first 6 months after delivery."
2024 (January 2025 edition)Transferable at no cost to any subsequent owner within the 8 years or 100,000 miles, with no deductibles; "For Hummer EV only: Certain Electric Vehicle Propulsion Coverages will be VOIDED if ownership of the vehicle is transferred from the original owner within the first 6 months after delivery."
2025Provided to the original owner and any subsequent owners during the warranty period; "For Hummer EV only: Coverage will be voided if ownership of the vehicle is transferred from the original owner within the first 6 months after delivery."
2026Provided to the original owner and any subsequent owners during the warranty period; "For Hummer EV only: Coverage will be voided if ownership of the vehicle is transferred from the original owner within the first 6 months after delivery."

Using the pack for something other than driving

Model years 2025 and 2026:

CoveredNot covered
Normal use for backup power during outages, reasonably selling energy back to the electrical grid, and reasonable use as a mobile power source (job site power or vehicle to vehicle charging)Excessive use for non-propulsion purposes, including semi-permanent or permanent daily power provisions; General Motors reserves the right to curtail excessive non-propulsion use that is determined to be harmful to the battery

What is not covered

Model years 2022 through 2026. The booklets' exclusions include:

  • Damage caused by collision, fire, theft, freezing, vandalism, riot, explosion, or objects striking the vehicle.
  • Damage caused by alteration, modification, or tampering to the vehicle, including the body, chassis, software, or other components after final assembly.
  • Damage caused by water or fluid contamination.
  • Vehicles where the odometer has been disconnected, its reading altered, or mileage cannot be determined.
  • Vehicles currently or previously titled as salvaged, scrapped, junked, or otherwise considered a total loss: the warranty is void.

Model years 2025 and 2026:

  • Damage to the vehicle's battery from incompatible charging methods, or from an adapter that is not sold or approved by General Motors.
  • Damage resulting from failure to install Over-the-Air software updates; the owner is responsible for ensuring all GMC provided Over-the-Air software updates are installed within 45 days of software availability to the vehicle.

See it for yourself

Scope note

US-market GMC Hummer EV Pickup, model years 2022 through 2026, and Hummer EV SUV, model years 2024 through 2026, each read from the GMC warranty booklet GMC lists for that model year. The 2022, 2023 and 2024 booklets read are the editions named in each row, and the two 2022 printings state different capacity floors.