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Honda Pilot 12V Automotive Battery Replacement Guide
How to change a dead 12 volt car battery in the engine bay of a 2nd generation 2009-2015 Honda Pilot with photos.

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Paul B. Michaels
Author & Photographer
Auto Mechanic Since 1989

2012 Honda Pilot Air Intake
Pry Up Center of Fastener
Pry Out Base of Pop Rivet
This automotive maintenance tutorial was specifically written to assist owners of the second generation (2009, 2010, 2011, 2012, 2013, 2014 & 2015) Honda Pilot SUV in changing a dead 12 volt car battery in the engine bay.

Owner's of other Honda or Acura vehicles such as the Odyssey, Insight, Ridgeline, CR-V, Fit, Civic, CR-Z, Crosstour, Accord, MDX, RDX, RLX, TL, TSX and ILX may also find these DIY instructions to be helpful.

A few compatible replacement "Group Size" 24F, 35 or 27 automotive batteries with their part numbers include the following: Optima 8040-218 D35, Exide FP-AGM24F, Value Power VP-24F, EverStart 24F-3, EverStart MAXX-24F, EverStart MAXX-35N, Bosch 27F750B, Optima Yellowtop YEL27F, AutoCraft 24F-6, AutoCraft 35-2, NAPA Legend BAT 7524F, Optima Redtop BAT N9935RED & Bosch S6508B S6.

The tools needed to complete this procedure include a flathead screwdriver, a deep well 10mm socket with a 1/4' drive ratchet (or just a 10mm wrench).

Remove 2nd Fastener
Two Pop Rivets Removed
Lift Off Air Intake
The first two steps are to open the hood and then move to the right (driver) side of the engine bay.

In order to access the 12 volt car battery, you will need to remove the air intake assembly.

Gently pry out the smaller piece in the center of the two fasteners to unlock them.

Then pry out the base of the fastener to remove it from the front edge of the air intake.

Engine Air Intake Removed
Old 12 Volt Car Battery
Loosen 10mm Nut
Lift the air intake assembly out of the engine bay and disconnect the tube from the engine air box.

Set the air intake aside in a safe place.

Loosen the two nuts on the battery hold down bar by turning them counterclockwise with a deep well 10mm socket and a 1/4" drive ratcheting wrench or a 10mm combination wrench.

You may not need to remove the nuts in order to disconnect the two "J" hook bars.

Loosen Counterclockwise
10mm Nut Removed
Lift Out "J" Bar
Once the nuts have been loosened, remove the "J" hooks out of their sockets.

Lift the battery hold down clamp out of the engine bay and set it aside in a safe place.

Battery Clamp Removed
Loosen Negative Terminal
Pull Off Negative Terminal
First loosen the negative "-" terminal nut by turning it counterclockwise with the 10mm socket and 1/4" drive ratcheting wrench.

Pull the negative terminal off the "-" battery post, wrap it in a small towel and tuck it away on the side of the battery to help prevent accidental electrical contact.


Loosen "+" Terminal
Lift Out Old Battery
Lower In New Battery
Then lift open the red plastic cover on the positive battery terminal.

Loosen the positive battery terminal by turning the 10mm nut counterclockwise a few turns.

Pull the positive terminal off the "+" battery post, flip the cover closed and tuck away the terminal on the left side of the battery to help prevent accidental electrical contact.

Carefully lift the old battery out of the engine bay and gently set it down on the ground.

Try to avoid tipping over or dropping the old battery which may cause some battery acid to leak out.

Be sure to bring the old battery with you to Walmart or the auto parts store to avoid having to pay a "core" charge and also so the retailer will have the old battery properly recycled.

Clean off any debris from the battery tray so that the new battery will rest evenly on it.

I recommend buying the Optima RedTop 8020-164 35 since it has excellent reviews on Amazon.

Gently lower the new Group Size 24F 12V battery in to the engine bay with the positive post on the left (passenger) side and the negative post on the right (driver) side.

If necessary, you may also use a Group Size 27 or 35 battery.

If you've had a problem with corrosion (white or blue powder) building up on the terminals, cable or battery posts, I'd recommend installing some felt anti-corrosion washers over the battery posts.

EverStart MAXX-24F
Push On Positive Terminal
Tighten 10mm Clockwise
First push the positive terminal on to the "+" battery post on the left side.

Please double check that the battery has the "+" symbol on that side.

Tighten the 10mm positive terminal nut in the clockwise direction until it is snug.

Try to avoid over tightening the terminal nut to prevent from damaging the battery post which lead to an acid leak.

Close Red Plastic Cover
Push On Negative Terminal
Tighten 10mm Terminal Nut
Flip the red plastic cover closed over the positive battery terminal.

Push the negative terminal on to the "-" battery post.

Tighten the negative battery terminal in the clockwise direction with the 10mm socket and 1/4" drive ratcheting wrench.

Replace Hold Down Bar
Re-Insert "J" Hook Bar
Re-Attach Front "J" Bar
Lower the metal hold down bar over the new battery and re-insert the "J" hooks in to their mounting brackets.
Tighten 10mm Nuts
Deep Well 10mm Socket
New Battery Installed

Tighten the two 10mm nuts on the battery clamp bar by turning them clockwise until they are snug.

Try to move the new battery. If it can be moved, wiggled, slid or rocked, you may need to tighten the two 10mm nuts on the hold down clamp a few more turns.

Push In Air Intake Hose
Push In Two Pop Rivets
12V Battery Replaced
Re-insert the air intake hose in to the engine air filter box.

Lower the air intake assembly down on to the front of the engine bay.

Push in the two fasteners and pop in the center pieces to secure them in place.

To test the new 12 volt car battery, start the engine and turn on the headlights.

Please remember to adjust the time on the clock and program your favorite radio station presets before you start driving.

Also, don't forget to record the battery change in your vehicle's service records.

For more, please check out my other 2009-2015 Honda Pilot DIY Repair & Maintenance Guides.

If you found this guide to be helpful, please consider making a small donation by clicking on the "Donate" button located to the right of this paragraph. Thank you!
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