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Toyota bZ and bZ4X: Battery Warranty

Traction battery coverage

Model yearModelTermCapacity covered
2023bZ4X8 years or 100,000 milesBelow 70% of original capacity
2024bZ4X8 years or 100,000 milesBelow 70% of original capacity
2025bZ4X8 years or 100,000 milesBelow 70% of original capacity
2026bZ8 years or 100,000 milesBelow 70% of original capacity
2026bZ Woodland8 years or 100,000 milesBelow 70% of original capacity
2027bZ and bZ Woodland8 years or 100,000 milesBelow 70% of original capacity
  • The term runs from the vehicle's in-service date, whichever of the years or the miles comes first.
  • For 2027 Toyota publishes one Warranty Guide for all its 2027 model-year electric vehicles, and links it from both the bZ and the bZ Woodland pages of its owners site.

Coverage at a glance

ItemAnswer
WarrantyElectric Vehicle Drive Components Warranty, part of the New Vehicle Limited Warranty
Components coveredTraction battery, transaxle, inverter with converter
Capacity lossToyota considers a reduction of the lithium-ion battery capacity by 30 percent or less normal and not covered under warranty
Repair standard"The traction battery warranty replacement may not restore the vehicle to an "as new" condition. Taking into consideration other factors, including the age and mileage of the vehicle, Toyota will ensure that the energy capacity of the replacement battery is at least equal to that of the original battery before the failure occurred." The 2027 guide reads "high-voltage traction battery warranty replacement".
New or remanufacturedParts replacement is made using new or remanufactured parts; the measurement method used to determine battery capacity, the decision whether to repair, replace or provide reconditioned/re-manufactured parts, and the condition of any such parts are at Toyota's sole discretion
Cost of a covered repairNo charge for parts and labor
Transfers to a second ownerYes, automatically and at no cost to subsequent vehicle owners
Clock startsThe in-service date: the first date the vehicle is delivered to an ultimate purchaser, leased, or used as a company car or demonstrator
Which carsOriginally sold by an authorized dealer in the United States and normally operated or touring in the United States, U.S. territories or Canada
TowingTo the nearest authorized Toyota dealership when the vehicle is inoperable due to failure of a warranted part

2027 federal emissions warranty

Model yearWarrantyPartsTerm
2027 bZ and bZ WoodlandZero-Emission Control Warranty (federal)Onboard charger assembly, high-voltage traction battery assembly, transaxle assembly, traction motor8 years or 80,000 miles
  • It covers those parts if they fail in a way that prevents the vehicle from meeting emissions-related requirements, or if the traction battery no longer meets the manufacturer-defined usable-energy standard. It is in addition to the 8-year/100,000-mile Electric Vehicle Drive Components Warranty.

What is not covered

Among the exclusions in every guide from 2023 through 2027:

  • Neglecting to follow appropriate vehicle usage, incorrect charging procedure or use of an incompatible charging device that results in a battery capacity reduction.
  • Gradual capacity reduction of the lithium-ion traction battery: a reduction of 30 percent or less is considered normal and not covered under warranty.
  • The driving range estimates are not a measure of battery capacity, and the display monitor is not an indicator of battery capacity.
  • Any vehicle that has ever been branded as salvage, total loss, true mileage unknown or similar title under any state's law, or has ever been declared a "total loss" or equivalent by a financial institution or insurer; this exclusion does not apply to any open Safety Recalls/SSCs/LSCs, nor, in the 2023 and 2027 guides, to the emission control warranties.
  • Failure of a vehicle on which the odometer has been altered so that actual vehicle mileage cannot be readily determined.
  • Fire, accidents or theft; abuse or negligence; misuse, for example racing or overloading; improper repairs; alteration or tampering, including installation of non-Genuine Toyota Accessories; lack of or improper maintenance; installation of parts that are not Toyota Genuine Parts; airborne chemicals, tree sap, road debris, salt, hail, floods, wind storms, lightning and other environmental conditions; water contamination.

From 2025, the guides also exclude damage that occurs as a result of abuse or misuse of the vehicle while participating in an HPDE/track event, or off-road use, and wear or damage from competitive motorsports events.

See it for yourself

Scope note

US market, model years 2023 through 2027, from the warranty guide Toyota links on its owners site for each model and year: the bZ4X for 2023 to 2025, the bZ and the bZ Woodland for 2026, and Toyota's single electric-vehicle guide for 2027. The guide delivered with a specific car is the authority for that car.