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Toyota Yaris 12V Automotive Battery Replacement Guide
How to change a dead 12 volt car battery in the engine bay of a 3rd generation 2012-2016 Toyota Yaris with photos.

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2015 Yaris 12V Battery
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Pull Off Rubber Strip
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Push In Two Release Tabs

This automotive maintenance tutorial was specifically written to assist owners of the third generation 2012, 2013, 2014, 2015 and 2016 Toyota Yaris in changing a dead 12V automotive battery in the engine bay.

Owners of other Toyota, Lexus or Scion vehicles such as the Corolla, Matrix, Prius, Camry, RAV4, Sienna, Tacoma, Tundra, FJ Cruiser, Venza, Highlander, Avalon, Sequoia, 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 Group Size 26R OEM 12 volt car battery in this 2015 Yaris was Toyota part number 28800-0T060 or 288000T060.

A few other compatible replacement batteries with their part numbers are as follows: Walmart Value Power VP-26R, Optima 8040-218 D35 YellowTop, Optima 8020-164 35 and Bosch S6523B S6.

The tools needed to complete this procedure include a 10mm wrench or a 10mm socket with a 1/4" drive ratchet.

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Pull Off Access Cover
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Rest Cover On Windshield
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Loosen Negative Terminal
The first two steps are to open the hood and move to the right (driver) side of the engine bay.

The 12V car battery is located just to the left of the fuse box and behind the engine air filter box.

For better access to the battery, you'll need to remove the access panel which is attached to the driver side cowl below the windshield wiper arm.

Pull the right (driver) side of the rubber weather-stripping off the peg or "spike" at the end of the plastic cowl.

Then gently continue pulling the rubber strip off the cowl and towards the left side of the car to disengage the plastic pop rivets.

Push in the two tabs on the front edge of the access panel to release the retaining clips.

Lift the access cover off the cowl and set it on top of the wiper arm and the windshield.

Loosen the nut on the positive terminal by turning it counterclockwise with the 10mm wrench or a 10mm socket with a 1/4" drive ratchet.

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Pull Off Negative Terminal
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Cover & Tuck Away
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Open Red Plastic Cover
Pull the negative terminal off the "-" battery post.

Wrap the terminal in a small towel and tuck it away behind the battery to help prevent accidental electrical contact.

Flip open the red plastic cover on the positive battery terminal.

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Loosen Counterclockwise
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Pull Off Positive Terminal
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Loosen Battery Clamp Nut
Loosen the 10mm positive terminal nut by turning it counterclockwise.

Pull the positive terminal off the "+" battery post, close the red plastic cover and tuck it away on the side of the battery to help prevent accidental electrical contact.

Next, loosen the two 10mm nuts on the battery hold down bar or "clamp" by turning them counterclockwise.

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Loosen 10mm Rear Nut
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Lift Off Hold Down Bar
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Move Bar Behind Battery
I found it easiest to just remove the front "J" hook bar from the battery tray and leave the rear "J" hook bar attached.

Swing the hold down bar over and behind the old battery. Avoid making contact with the battery posts.



 

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Bar Out of the Way
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Lift Out Old 12V Battery
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Clean Off Plastic Tray
Carefully lift the old battery out of the engine bay.

Gently set the old battery on the ground. Try to avoid dropping or tipping over the old battery which may cause acid to leak out.

Be sure to bring the old battery with you to Walmart or the auto parts store to prevent from having to pay a "core" or "disposal" fee. The retailer will also have the old battery properly recycled.

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

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Lower In New 26R Battery
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Swing Bar Over Battery
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Re-Insert "J" Hook Bar
Lower the new 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.

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

Re-insert the front "J" hook bar in to the hole on the front edge of the battery tray.

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Hold Down Clamp In Place
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Tighten 10mm Clockwise
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Tighten Rear 10mm Nut
Tighten the two 10mm nuts on the top of the battery hold down clamp by turning them clockwise until they are snug.

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

Check that the new battery can not be slid or rocked on the tray. If the new battery can be moved, tighten the two 10mm nuts on the hold down bar another turn or two.

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

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

Try to avoid over tightening the terminal nut to prevent from cracking or damaging the battery post.

Flip the red plastic cover closed over the positive terminal and post.

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Push On Negative Terminal
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Tighten 10mm Clockwise
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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.

Double check that the two battery terminals are securely in place.

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Replace Plastic Cover
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Secure Two Retaining Clips
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Replace Weather-stripping
Lower the plastic access panel back in to place over the new battery and push it down on the cowl to secure the two retaining clips.

Replace the rubber strip by re-inserting the plastic fasteners in to their corresponding holes on the cowl.

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Re-Insert Plastic Pegs
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Re-Attach End of Strip
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12V Battery Replaced
Attach the hole at the end of the rubber strip to the plastic peg at the edge of the plastic cowl.

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

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

For more, check out all of my 2012-2016 Toyota Yaris DIY Repair & Maintenance Guides.
 

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