Toyota Yaris HV 2017 Manual page 478

478
7-3. Do-it-yourself maintenance
3 Remove the depleted battery.
Insert a new battery with the "+"
terminal facing up.
Vehicles with a smart entry & start system

1
Take out the mechanical key.
2
Remove the cover.
To prevent damage to the key,
cover the tip of the screwdriver with
a tape.
3
Remove the battery cover.
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