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Toyota Allion Smart Key & Remote Battery by Chassis Code
Which battery is used in the documented key system? Compare actual published manufacturer references for 4 exact Toyota Allion chassis codes. Values can differ across drivetrain, trim and production period.
4documented chassis
1answer shared by every code
1source documents
2026-10-05latest evidence review
Before applying a specification
View all Toyota Allion chassis →Confirm the engineering configuration
Different key or remote variants may ship with different coin cells even within the same model family. Match the actual fob, not just the vehicle name.
Year ranges here describe the cited chassis coverage, not every option sold under the same model name worldwide. The actual service manual and fitted equipment take precedence.
Source-linked answers
Smart Key & Remote Battery: chassis comparison
Open the original exact-code answer to see the manufacturer reference and full caveat.
| Exact code | Documented years | Key battery reference | Manufacturer source |
|---|---|---|---|
| NZT260 | 2007–2021 | CR1632 with Smart Entry & Start; CR2016 without it ↗ | Toyota Motor Corporation ↗Checked 2026-09-28 |
| ZRT260 | 2016–2019 | CR1632 with Smart Entry & Start; CR2016 without it ↗ | Toyota Motor Corporation ↗Checked 2026-10-05 |
| ZRT261 | 2016–2019 | CR1632 with Smart Entry & Start; CR2016 without it ↗ | Toyota Motor Corporation ↗Checked 2026-10-05 |
| ZRT265 | 2016–2019 | CR1632 with Smart Entry & Start; CR2016 without it ↗ | Toyota Motor Corporation ↗Checked 2026-10-05 |
Documented differences
Which codes share an answer?
Grouped by exact published text. Similar wording is not treated as proof of identical equipment.
Reviewable evidence
Source scope and important caveats
Toyota Allion NZT260 — Key fob battery ↗
Published answer: CR1632 with Smart Entry & Start; CR2016 without it
Toyota’s Allion key-battery guidance lists CR1632 for the electronic smart key and CR2016 for the wireless key without Smart Entry & Start.
Applicability: Identify the key/system fitted to the car before buying a replacement battery.
Toyota Japan Allion key battery guide · Toyota Motor Corporation · Manufacturer reference ↗
Toyota Allion ZRT260 — Key fob battery ↗
Published answer: CR1632 with Smart Entry & Start; CR2016 without it
Toyota specifies CR1632 for Smart Entry & Start keys and CR2016 for keys on vehicles without that system.
Applicability: Identify which key system is fitted to the individual car before buying a replacement battery.
Toyota Japan Allion key battery guide · Toyota Motor Corporation · Manufacturer reference ↗
Toyota Allion ZRT261 — Key fob battery ↗
Published answer: CR1632 with Smart Entry & Start; CR2016 without it
Toyota specifies CR1632 for Smart Entry & Start keys and CR2016 for keys on vehicles without that system.
Applicability: Identify which key system is fitted to the individual car before buying a replacement battery.
Toyota Japan Allion key battery guide · Toyota Motor Corporation · Manufacturer reference ↗
Toyota Allion ZRT265 — Key fob battery ↗
Published answer: CR1632 with Smart Entry & Start; CR2016 without it
Toyota specifies CR1632 for Smart Entry & Start keys and CR2016 for keys on vehicles without that system.
Applicability: Identify which key system is fitted to the individual car before buying a replacement battery.
Toyota Japan Allion key battery guide · Toyota Motor Corporation · Manufacturer reference ↗