These instructions apply to the Toyota C-HR Mk2 (X2/XH2) 2023-Present. For other models, please choose your vehicle here.
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The Toyota C-HR Mk2 (2023–present) is a hybrid, so it has two completely separate electrical systems. This guide covers the 12 V battery only — the part you can safely work on. The high-voltage hybrid battery is never an owner job.
Two Batteries — Know the Difference
- The 12 V battery runs the lights, locks and computers, and wakes the car up. It’s in the engine bay — this is the one you disconnect.
- The high-voltage hybrid battery drives the car. Never touch the orange cables or HV components — that’s strictly dealer/technician territory.
Disconnecting the 12 V Battery
- Make sure the car is fully off (not READY), all electrical consumers off, and wait 1 minute.
- Disconnect the negative (−) terminal first and tuck the lead clear.
- If removing the battery, disconnect the positive (+) next, then the clamp.
Stay away from the orange high-voltage cabling throughout.
Reconnecting
- Reconnect positive (+) first, then negative (−) last.
- Reset the clock; the display and radio reload on their own.
- Press the power button to READY and check no new warnings remain.
The first few stops may feel slightly different while the hybrid system relearns — that’s normal.
Frequently Asked Questions
Where is the 12V battery on a Toyota C-HR?
In the engine bay. Disconnect the negative terminal first.
Is it safe to disconnect the battery on a hybrid?
Yes — the 12 V battery is just like any car’s. Only the orange high-voltage system is off-limits.
Does the battery need coding?
No registration is required for a like-for-like 12 V battery.
Can I jump-start a C-HR from the 12V battery?
You can receive a jump to the 12 V battery’s terminals (or the under-bonnet jump point) to wake the car, then it starts the hybrid system itself — never jump from the high-voltage side.
For any warning light that stays on, look up the code on autodtcs.com. To clear the maintenance reminder, see our C-HR Mk2 service reset.
Disclaimer: The information on this page is provided for general guidance only. Always follow your official service manual and safety precautions when working on your vehicle. We are not responsible for errors, omissions, or any damage resulting from the use of this information.
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