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Toyota Highlander 12V Automotive Battery Replacement Guide
How to change a dead 12 volt car battery in the engine bay of a 2nd generation 2008 to 2013 Toyota Highlander SUV.

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2013 Highlander 12V Battery
Loosen 10mm Bolt
10mm Bolt Removed
This automotive maintenance tutorial was specifically written to assist owners of the second generation (2008, 2009, 2010, 2011, 2012 & 2013) Toyota Highlander in changing a dead 12V automotive battery in the engine bay.

Owners of other Toyota or Scion vehicles such as the Tacoma, Corolla, Yaris, Prius, Camry, RAV4, Tundra, Sienna, FJ Cruiser, Venza, Avalon, 4Runner, Sequoia, xB, xD, tC, iQ and FR-S may also find these DIY instructions to be helpful.

The '08-'13 Highlander models all use a Group Size 24F 12V automotive battery.

A few compatible replacement batteries with their part numbers are as follows: Optima 8020-164, Bosch S6508B, EverStart Plus 24F-3, EverStart MAXX-24F, ProStart #  24F600PS and AutoCraft 24F-6.

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

Lift Off Battery Clamp
Loosen 10mm "-" Terminal
Pull Off Negative Terminal
The first two steps are to open the hood and then move to the right side of the engine bay.

The 12V automotive battery is located at the front of the engine bay just behind the headlight assembly and forward of the engine air filter box.

For extra safety, I'd recommend wearing gloves and protective eyeglasses.

Loosen the bolt at the front of the black metal battery clamp or "hold down bar" by turning it counterclockwise with the 10mm socket and 1/4" drive ratcheting wrench.

Set the bolt aside in a safe place.

Lift the battery hold down bar straight off the top of the battery and disengage the metal "J" hook bar from the rear of the battery.

Set the battery clamp aside with the bolt.

Loosen the nut on the "-" negative battery terminal by turning it counterclockwise with the 10mm socket and ratcheting wrench.

Wrap In Rag & Tuck Away
Loosen 10mm "+" Terminal Nut
Pull Off Positive Terminal
Pull the negative terminal straight off the battery post, wrap it in a small towel to help prevent accidental contact and tuck it away on the side of the air box.

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

Pull the positive terminal straight off the battery post, wrap it in a rag and tuck it away on the side.

Lift Out Old 12V Battery
OEM Toyota # 28800-03044
Clean Off Plastic Battery Tray
Lift the old battery straight out of the engine bay. Avoid touching the battery posts.

Be sure to bring the old battery with you to the store when you buy a new one so that you can avoid paying a "core charge" or "disposal fee".

The auto parts store or a big box retailer such as Walmart will have the old battery properly recycled.

Clean off any debris on the plastic battery tray to ensure that the new battery will rest evenly in the engine bay.


Group Size 24F
Lower In New Battery
Push On Positive Terminal
The OEM 12V battery in this 2013 Highlander was Toyota part number 28800-03044.

If you can wait a few days for delivery, the Optima 8020-164 "RedTop" has excellent reviews on Amazon.

Lower the new battery down on to the plastic tray with the "+" positive terminal on the left (passenger side) and the "-" negative terminal on the right (driver side).

If you've had a problem with corrosion building up on the terminals, consider installing some felt anti-corrosion washers.

Push the "+" positive terminal on to the positive battery post.

Tighten 10mm Clockwise
Push On Plastic Terminal Cover
Re-Attach Metal "J" Hook Bar
Tighten the 10mm nut on the positive terminal by turning it clockwise until it is snug.

Do not over tighten the terminal nut to prevent from damaging the battery post.

Push the plastic cover back in place over the positive terminal.

Carefully lower the hold down clamp over the top of the battery.

Re-insert the "J" hook at the end of the bar in to its slot on the rear of the battery tray.

Tighten Hold Down Bar Bolt
Push On Negative Terminal
Tighten 10mm Nut Clockwise
Re-insert the 10mm bolt at the front of the battery hold down clamp and tighten it in the clockwise direction.

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

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

Avoid over tightening the terminal to prevent from damaging the battery post.

Test the new 12V battery by starting the engine and turning on the headlights. Be sure to adjust the time on the clock and set your favorite radio station presets before driving.

For more, check out my other Toyota Highlander DIY Repair Guides.

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