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Toyota Tacoma 12V Automotive Battery Replacement Guide
How to change a dead 12 volt car battery in the engine bay of a 2nd generation 2005 to 2015 Toyota Tacoma pickup truck.

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Paul B. Michaels
Author & Photographer
Auto Mechanic Since 1989

2013 Tacoma 12V Battery
Loosen Negative Terminal
Pull Off "-" Terminal
This automotive maintenance DIY tutorial was specifically written to assist owners of the second generation (2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 or 2015) Toyota Tacoma pickup truck in changing a dead 12 volt automotive battery in the engine bay.

Owners of other Toyota, Lexus or Scion vehicles such as the Yaris, Matrix, Prius, Camry, Corolla, Sienna, RAV4, Tundra, FJ Cruiser, Venza, Highlander, Avalon, Sequoia, Hilux, Land Cruiser, IS 250, ES 350, GS 350, tC, xB, xD, iQ and FR-S may also find these DIY instructions to be helpful.

The OEM Toyota battery is a "Group Size 27F" and Johnson Controls Battery Group part number 28800-0F020.

The tools needed to replace the automotive battery include a deep well 10mm socket with a 1/4" drive ratchet or a standard 10mm wrench.


A few other compatible replacement Group Size "27F" and "24F" batteries with their part numbers include the following: Optima 8020-164 35 RedTop, Optima 8040-218 D35 YellowTop, Toyota 00544-24F60-575, EverStart MAXX-24F (Walmart), Value Power VP-24F, EverStart Plus 24F-3, NAPA Legend BAT 7527F, NAPA Legend BAT 9824F, Optima  N99D27FYEL, AutoCraft Platinum 24F-AGM, AutoCraft Silver 27F-3, Interstate Mega-Tron II MT-24F, Super Start Extreme 24REXT and Exide FP-AGM24F.
Wrap & Tuck Away
Open Plastic Terminal Cover
Loosen Positive Terminal
The first two steps are to open the hood and then move to the right (driver) side of the engine bay.

Loosen the negative "-" terminal nut by turning it counterclockwise with the 10mm socket and 1/4" drive ratcheting wrench or a standard 10mm hand wrench.

Carefully 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.

Then flip open the red plastic cover on the "+" positive terminal.

Loosen the 10mm nut on the positive terminal by turning it counterclockwise.

Pull Off "+" Terminal
Battery Hold Down Bar
Loosen Front 10mm Nut
Pull the positive terminal off the "+" battery post, close the plastic cover and tuck the terminal on the left side of the battery to help prevent accidental electrical contact.

The OEM battery is held in place to the tray by a metal bar and two "J" shaped hooks.

Loosen the nuts on the two "J" hook bars by turning them counterclockwise with a deep well 10mm socket and a ratcheting wrench or a standard 10mm wrench.

Deep Well 10mm Socket
Unhook "J" Bar
Lift Off Battery Clamp
Unhook the "J" hook bars from their mounting sockets on the front and rear edge of the battery tray.

Lift the battery hold down bar out of the way and rest it on the fuse box.

Rest Bar On Fuse Box
"J" Hook & Plastic Clip
Lift Out Old 12V Battery
Carefully lift the old battery out of the engine bay and rest it on the ground.

Try to avoid dropping or tipping over the old battery to prevent from having battery acid leak out.

Make sure you bring the old battery with you to Walmart or the auto parts stores so you can avoid having to pay a "core" charge and so that it can be properly recycled.


Clean Off Plastic Tray
Lower In New 12V Battery
Replace Battery Clamp
If there is any debris on the plastic battery tray, clean it off so that the new battery will rest evenly on it.

If you can wait a few days for delivery, I recommend buying the Optima 8020-164 35 RedTop since it has excellent reviews on Amazon.

Lower a new Group Size 27F or 24F 12 volt battery in to the engine bay with the Positive "+" post on the left (passenger) side and the Negative "-" post on the right (driver) side.

Carefully lower the battery hold down bar over the new battery while avoiding making contact with the posts.

Re-Attach Rear "J" Hook
Re-Insert Front "J" Hook
Tighten Two 10mm Nuts
Re-insert the curved ends of the "J" hook bars in to their sockets on the front and rear edge of the battery tray.

Hold each "J" bar in place with one hand while tightening the 10mm nut in the clockwise direction.

Continue tightening the two 10mm nuts until the battery clamp is secure.

Make sure that the new battery can't be moved, rocked, or slid around on the tray. If it can be moved, tighten the two 10mm nuts on the clamp a few more turns.

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

Push On Positive Terminal
Tighten 10mm Terminal Nut
Close Plastic Terminal Cover
Push the positive terminal on to the "+" battery post.

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

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

Flip the red plastic cover over the positive terminal.

Push On Negative Terminal
Tighten "-" 10mm Nut
New Battery Installed
Then push the negative terminal on to the "-" battery post.

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

Test the new 12V battery by starting the engine and turning on the headlights.

Make sure you adjust the time on the clock and program your favorite radio station presets before you start driving.

For more, check out my other 2005-2015 Toyota Tacoma 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!
(Note: I am not a registered charity. Donations are not tax deductible.)

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