These instructions apply to the Honda Civic Mk8 (FA/FG/FD) 2006-2011.
For other models, please choose your vehicle here.
Before electrical work on a 2006–2011 Honda Civic you disconnect the 12 V battery, negative first. Have your radio code ready. This is the US-market procedure.
- Ignition off, key out, eye protection on.
- Open the hood; the battery is in the engine compartment.
- Remove the negative (−, black) cable first, then the positive (+, red).
- Reconnect positive first, negative last.
- Re-enter the radio code, reset the clock, and re-initialise the auto-up windows if needed.
FAQ
Will I lose the radio?
It locks until you enter the code from your owner’s card; the clock also resets.
Which cable first?
Negative off first, negative on last.
Windows won’t auto-up afterward.
Re-initialise the power windows (hold each switch up at the top of travel for a couple of seconds) after reconnecting.
If your Civic stores a fault code with the warning light, look it up on autodtcs.com.
Independent guide — not affiliated with Honda. Always follow your official service manual and safety precautions. Read our full disclaimer.