These instructions apply to the Honda CR-V Mk3 (RE) 2007-2012.
For other models, please choose your vehicle here.
The 12V battery on the Honda CR-V (RE, 2007-2012) is in the engine bay on the right-hand side. Disconnect it in the correct order to protect the electronics, and be ready to re-enter a few settings afterwards.
Disconnect
- Turn everything off and remove the key. Have your radio anti-theft code to hand.
- Loosen and remove the negative (−) terminal first, and tuck the cable aside.
- Remove the positive (+) terminal.
- If removing the battery, undo the hold-down clamp and lift it out keeping it upright.
Reconnect
- Fit the battery and hold-down clamp first if it was removed.
- Connect the positive (+) terminal first, then the negative (−). Tighten both snugly.
After reconnecting
Disconnecting the battery clears some memories. You may need to:
- Re-enter the radio anti-theft code and reset the clock.
- Re-initialize the driver’s auto-up/down window and the moonroof if fitted.
- Let the engine idle for a couple of minutes so it relearns a smooth idle.
Frequently asked questions
What battery does it take? The 2.0 petrol uses a 45 Ah battery; the 2.2 diesel a larger 74 Ah unit. Match the capacity and terminal layout of the original.
Which terminal first? Negative off first when disconnecting; positive on first when reconnecting.
Looking for a fault code instead of a procedure? Decode it on autodtcs.com.
Independent guide — not affiliated with Honda. Always follow your official service manual and safety precautions. Read our full disclaimer.