If The Electronic Key Does Not Operate Properly - Toyota Prius Owner's Manual

5-2. Steps to take in an emergency

If the electronic key does not operate properly

If communication between the electronic key and vehicle is inter-
rupted (P. 84) or the electronic key cannot be used because the
battery is depleted, the smart entry & start system and wireless
remote control cannot be used. In such cases, the doors can be
opened and the hybrid system can be started by following the proce-
dure below.
Locking and unlocking the doors
PRIUS_OM_OM47A19E_(EE)
Use the mechanical key (P. 70)
in order to perform the following
operations:
Locks all the doors
Unlocks all the doors
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