How to Replace a Toyota Prius ZVW30 Smart-Key Battery
Replace the ZVW30 Prius smart-key battery using Toyota's manufacturer-backed CR1632 reference.
Toyota Prius ZVW30 smart-key battery is CR1632. Toyota’s ZVW30 owner manual specifies this lithium coin cell for the electronic key.
Open verified ZVW30 reference →What you need
- CR1632 coin-cell battery
- Small flat plastic pry tool
Step by step
- 1
Confirm the smart-key version
Use the linked ZVW30 exact-code reference to confirm the CR1632 specification before opening the key.
- 2
Remove the mechanical key
Release the latch and slide the mechanical emergency key out.
- 3
Open the smart-key case
Use the provided case slot/seam and a non-marring tool to separate the housing carefully.
- 4
Record battery orientation
Note the old cell polarity before removing it.
- 5
Install the CR1632
Place the new CR1632 in the same orientation and make sure it sits flat under the contacts.
- 6
Close and test
Reassemble the housing, reinstall the mechanical key and test lock/unlock and vehicle recognition.
Important: This guide is for the smart-key configuration covered by the ZVW30 source. Verify the key type if your housing differs.