Toyota / Subaru (e-TNGA platform)

Toyota / Subaru e-TNGA 74.7 kWh (2026+)

Lithium-ion cells from · 74.7 kWh total ( kWh usable) · used in 1 model variant.

Toyota / Subaru e-TNGA 74.7 kWh (2026+)

Lithium-ion · e-TNGA skateboard, liquid-cooled

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About the pack

Capacity

kWh

useable · 74.7 total

Fast charge

150 kW

peak · 28 min 10→80%

Warranty floor

—

warranty terms not yet announced

Pack overview

ChemistryLithium-ion

Cell supplier

Cell format

CoolingLiquid

Architecturee-TNGA skateboard, liquid-cooled

Warranty Not announced

Known issues

High

Battery ECU software defect (NHTSA 26V393000, filed June 2026). Two integrated circuits in the Denso-supplied battery ECU can overwrite the same memory address, failing an operational check. Repeated failures post an “EV System Malfunction” warning, illuminate multiple malfunction indicator lamps and shut down the electric drive system, with power steering and power-assisted braking still operating. 20,991 vehicles: 11,495 Toyota bZ, 4,757 Subaru Solterra, 4,739 Lexus RZ. Remedy is a free dealer software update; owner letters mailed 2026-08-17.

NHTSA recall

Low

Six vehicles share this pack across two brands: Subaru Solterra, Trailseeker and Uncharted, and Toyota bZ, bZ Woodland and C-HR BEV. They pair as twins (Solterra/bZ, Trailseeker/bZ Woodland, Uncharted/C-HR BEV). Only the Solterra currently has a reliability page here; the other five are too new to have accumulated NHTSA complaint history.

Low

Charging tops out at 150 kW, roughly 28 to 30 minutes from 10 to 80 percent. That is materially slower than 800-volt competitors: a Hyundai IONIQ 5 peaks at 350 kW and covers the same window in about 18 minutes. The limit is architectural and no trim or software update changes it.

Low

All-wheel drive costs meaningful range on the same pack. Subaru Uncharted goes 300+ miles in single-motor front-drive Premium trim but 285 (Sport) and 270 (GT) with dual motors. Solterra and Trailseeker are dual-motor only and peak at 288 and 281 miles respectively.

Low

Supersedes the 71.4 kWh pack used in the 2023-2025 bZ4X, Solterra and Lexus RZ. The 2026 refresh added capacity, moved to a NACS charge port and raised the onboard AC charger to 11 kW. Recalls filed against the earlier pack generation do not carry over.

How this pack ages (industry context)

Industry fleet aggregates: 2.3% average annual capacity loss across 22,700 EVs / 21 models (Geotab, 2026), and 95% range retention at 5 years on average across 30,000+ vehicles (Recurrent, 2026).

OEM warranty floor: not yet announced by Toyota / Subaru (e-TNGA platform). The US-market EV baseline is 8 yr / 100,000 mi to a 70% capacity floor, but that should not be assumed here until Toyota / Subaru (e-TNGA platform) publishes its warranty booklet.

Public per-pack degradation curves are not available for most models. Individual results vary materially with climate, charging behavior, and DC fast-charge frequency.

Vehicles using this pack

Subaru Solterra

2026-2027 · Premium / Limited / Limited XT / Touring XT (AWD only)

288 miEPA range

245mi · highway est.

120MPGe

Full reliability page →

Frequently Asked Questions

What chemistry is the Toyota / Subaru e-TNGA 74.7 kWh (2026+)?

The Toyota / Subaru e-TNGA 74.7 kWh (2026+) uses Lithium-ion chemistry. Cells are supplied by null. Cell format: null. Pack architecture: e-TNGA skateboard, liquid-cooled.

What is the warranty on this pack?

Toyota / Subaru (e-TNGA platform) has not yet published official battery warranty terms for this pack. The US-market EV industry baseline is 8 years / 100,000 miles with a 70% capacity floor, but those numbers should not be assumed for Toyota / Subaru e-TNGA 74.7 kWh (2026+) until Toyota / Subaru (e-TNGA platform) publishes its warranty booklet.

How much does this pack degrade over time?

Industry-wide fleet aggregates show roughly 2.3% average annual capacity loss across 22,700 EVs (Geotab, 2026), with about 95% range retention at five years on average across Recurrent's 30,000+ vehicle fleet (2026). The Toyota / Subaru e-TNGA 74.7 kWh (2026+) has not yet entered the field, so pack-specific degradation data does not exist. Once delivery volume accumulates, this section will populate from owner aggregates and any published warranty floor.

Which vehicles use the Toyota / Subaru e-TNGA 74.7 kWh (2026+)?

Subaru Solterra 2026-2027 (Premium / Limited / Limited XT / Touring XT (AWD only)).