NiMH (bipolar)
Toyota Crown 2023+ (AZSH35/TZSH35) Bipolar NiMH Hybrid Battery
The Toyota Crown 2023+ (AZSH35/TZSH35) Bipolar NiMH Hybrid Battery is the high voltage battery in the Toyota Crown (2023-2026).
At a Glance
- NiMH (bipolar) chemistry
- 230.4 volts nominal
- 8 modules
- air-cooled; battery cooling blower assembly cooled
Specifications
| Chemistry | NiMH (bipolar) |
|---|---|
| Nominal voltage | 230.4 V |
| Modules | 8 |
| Module voltage | 28.8 V |
| Cooling | air-cooled; battery cooling blower assembly |
| Location | cabin area under the rear seats |
Cars That Use It
- Toyota Crown 2023-2026 XLE/Limited 2.5L THS (AZSH35) and Platinum 2.4T Hybrid MAX (TZSH35, 1Motor-HEV) - same pack spec in OEM manual Run the checklist
What Goes Wrong
Reported failures, each from a source listed below, as of October 7, 2026.
Symptoms
- Toyota's 2023 Crown Warranty & Maintenance Guide schedules an inspection of the HV battery cooling intake filter, with a visual check for dirt or dust every 5,000 miles and cleaning if necessary. (techinfo.toyota.com: T-MMS-23Crown.pdf, 2026-10-07)
Warranty
Toyota's 2023-2026 Crown Warranty & Maintenance Guides list a Hybrid Battery Warranty of 10 years or 150,000 miles from the in-service date, whichever comes first. (techinfo.toyota.com: T-MMS-23Crown.pdf, 2026-10-07)
Get This Pack Tested
Do not open it yourself. The pack can hurt you with the car switched off.
Sources
- techinfo.toyota.com: T-DM-031-D.pdf
- techinfo.toyota.com: T-ERG-093-D.pdf
- techinfo.toyota.com: T-ERG-108-D.pdf
- theshopmag.com: toyota-crown-returns-to-u-s-market
- media.toyota.ca: the-new-shape-of-innovation-toyota-crown-arrives-early-2023.
- techinfo.toyota.com: T-MMS-23Crown.pdf
- techinfo.toyota.com: T-MMS-24Crown.pdf
- techinfo.toyota.com: T-MMS-25Crown.pdf
- techinfo.toyota.com: T-MMS-26Crown.pdf
Last updated October 7, 2026. Failure and recall notes are as of that date. Spotted a mistake, or speaking for a maker? Report an error.
Hybrid Battery Test is independent. It is not affiliated with, sponsored by or endorsed by Toyota. Names and part numbers are used only to identify the vehicle and the part.