Battery Replacement and Terminal Cleaning on 2012-2015 Honda Civic
Clear instructions to disconnect, replace, and clean battery terminals on standard 51R platforms. Mapped specifically for 2015 Honda Civic Si (2.4L I4 (K24Z7)).
RECOMMENDED EXACT FIT PART
Verified compatible with your 2015 Honda Civic Si (2.4L I4 (K24Z7))
Duralast Duralast Gold Battery Group Size 51R (500 CCA)
Compound / Spec matching OEM standard. Highly recommended for DIY replacement.
Disconnect Battery Cables
Shut off ignition. Loosen the 10mm bolt on the negative terminal clamp (-) and pull it off. Then loosen and remove the positive terminal clamp (+). Always disconnect negative first to prevent short-circuit sparks.
Remove Hold-Down Bar
Unbolt the two 10mm nuts on the cross tie-down bracket. Lift off the bracket and remove the plastic battery shield. Lift the old Group 51R battery out of the engine compartment.
Install New Battery
Clean corrosion off the clamps with a wire terminal brush. Drop in the new battery, reinstall the tie-down, and hook up positive (+) first, followed by negative (-) cable.