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How to Start a Toyota Yaris Cross Hybrid with a Flat 12V Battery

Model: Toyota Yaris Cross MK 1 - Years: 2020, 2021, 2022, 2023, 2024, 2025, 2026
Part: Battery

Video tutorial

In this video, we will see how to proceed if the 12V battery of your Toyota Yaris Cross Hybrid is flat: this vehicle does not have a traditional starter motor and does not start with jumper cables; the 12V battery powers only the computers, control units, and hybrid control systems; without this voltage, the vehicle is dead, even if the high-voltage hybrid battery is charged.

Ensure you have the car keys in your pocket or leave a door open; you will need jumper cables, a donor vehicle (or a jump starter/power bank).

Open the bonnet: inside the fuse box, locate the positive terminal (red) and connect the other red clamp to the donor vehicle's battery; then connect the black cable to the negative terminal of the donor vehicle's battery and the other end to a clean, unpainted metal ground point.

Start the donor vehicle for 2 minutes, then start the Yaris Cross.

Remove the cables in reverse order. Do not turn off the Yaris for at least 20-30 minutes.


Posted on 13 June 2026 by ScegliAuto


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by ScegliAuto

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