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BMW iX: Battery Warranty

High-voltage battery limited warranty, all states

Model yearTerm
20228 years or 100,000 miles, whichever occurs first (December 2021 printing)
20238 years or 100,000 miles, whichever occurs first (BMW's 2024 reissue of the 2023 booklet)
20248 years or 100,000 miles, whichever occurs first (June 2024 edition)
20258 years or 100,000 miles, whichever occurs first (March 2025 edition)
202696 months (8 years) or 100,000 miles, whichever occurs first (September 2025 edition)

Coverage at a glance

ItemAnswer
What is covered, 2022The high-voltage lithium-ion battery assembly, against defects in materials or workmanship
What is covered, 2023–2025The high-voltage (traction) battery assembly, against defects in materials or workmanship
What is covered, 2026The high-voltage traction battery assembly and its internal components, against defects in materials and/or workmanship
Capacity coverage, 2026Usable (net) capacity/State of Health below 70 percent, as confirmed by an authorized BMW center, for 96 months (8 years) or 100,000 miles, whichever occurs first; BMW restores the battery's capacity to at least 70 percent
Repair standard, 2022–2025Repair or replacement of the defective part(s) with new or authorized remanufactured parts, at BMW NA's sole choice
Repair standard, 2026A software update, or repair and/or replacement of the appropriate HV battery components with new, refurbished and/or reconditioned parts, at BMW NA's sole choice; the minimum net HV battery capacity after repair is at least 70 percent
Transfers to a second owner, 2022–2025Yes. The battery warranty is part of the New Vehicle Limited Warranty, which BMW NA gives to the first retail purchaser and each subsequent purchaser
Clock starts, 2022–2025The date of first retail sale or the date the vehicle is first placed into service as a sales demonstrator, Aftersales Mobility Program (AMP) Vehicle or company vehicle, whichever is earlier
Where it is validU.S.-specification vehicles, serviced at an authorized BMW center in the United States, including Puerto Rico

What is not covered, 2026

The 2026 high-voltage battery warranty's "What Is Not Covered" section lists:

  • Issues caused by not adhering to the Owner's Manual instructions regarding the high-voltage battery (especially instructions about its service life), or issues/damage caused by not charging the BEV model within 14 days after the charge level indicator shows "0 % / 0 km (mile)" range remaining.
  • Issues/damage caused by using non-BMW approved third-party charging equipment (charging cables, charging plugs) and/or defective/damaged charging infrastructure equipment, such as public charging stations.
  • HV battery assembly physical damage caused by an external heat source, fire/open flame, vandalism, accident, storm, flooding and/or lightning strike, and damage due to an act of God.
  • Immersion of the HV battery assembly and/or parts of it in water or other liquids, including direct exposure to high-pressure cleaning devices (except automated car washes).
  • Exposing the HV battery to a corrosive environment, for example a highly acidic or highly alkaline environment and/or cleaning agents.
  • Non-compliance with the BEV model's load limits and/or towing capacities, when applicable, as specified by BMW.
  • Use and operation of the BEV model as an off-board power source for functions other than driving the vehicle, its factory-installed equipment and/or BMW approved accessories.
  • Use and operation of the HV battery after its removal from the vehicle.
  • Non-genuine BMW parts: BMW NA is not obligated to pay for repairs of the non-genuine BMW parts or for repairs of any damage resulting from the use of non-genuine parts.
  • The warranty is null and void for specific vehicle components that were previously replaced with used or salvaged automobile parts, including repairs of any damage resulting from the use of these parts.
  • The warranty is null and void if the odometer has been replaced or altered and the true mileage cannot be determined, and/or the Vehicle Identification Number (VIN) is altered and/or cannot be determined.
  • The warranty is null and void if the vehicle has been declared a total loss or sold for salvage purposes.
  • The warranty is null and void if the vehicle has been used in any competitive event activities (for example, overstraining the HV battery).

See it for yourself

Scope note

US market, model years 2022 through 2026, from the BMW of North America warranty booklet that bmwusa.com lists for the iX in each year: an i4 and iX booklet for 2022, and BMW's all-model booklet from 2023. Each row rests on the edition named in its cell. The booklet delivered with a specific car is the authority for that car.