2014–2019 Toyota Corolla

2014-2019 Toyota Corolla - Battery

By Tom Becker ✓ Certified Mechanic · Published Sep 21, 2026 · Updated Oct 22, 2026

🔧 Easy 20–30 minutes $140 DIY

Save $110 by doing it yourself! Shop cost: $250

Quick answer: Battery on a 2014–2019 Toyota Corolla is rated Easy and takes about 20–30 minutes. You'll need 2 tools for this job, and parts cost about $140. This guide walks you through the full job step by step, including the mistakes to avoid.

Quick Video Tutorial

Parts You Need

Total Cost

$140.00

Part Name	Part Number	Price	Buy
Group-size battery (match your tray)	—	$140.00	Amazon

About prices: shown prices are typical retail averages and change frequently; cheaper alternatives may be available. Confirm the current price before buying.

💡 Pro tip: Order all parts at once to save on shipping

Step-by-Step Instructions

Follow these steps carefully

Park, power down, and open the hood

Park on a flat surface, set the parking brake, and turn the engine completely off. If the engine is hot from a recent drive, give it ten minutes — the battery sits close to the radiator and fan.

Spot the battery behind the driver-side headlight

The negative terminal is the one with the black cable and minus sign; positive has a red cover and plus sign. Take a phone photo of the cable layout before disturbing anything; the tight space makes it easy to mix up the routing.

Loosen and remove the negative cable first

Put a 10mm socket on the negative terminal nut and turn counter-clockwise until the clamp loosens. Never use a metal pry tool on the clamp; a cracked post seal will leak acid later.

Loosen and remove the positive cable

Open or lift the red cover on the positive terminal and loosen its 10mm nut the same way. Twist and lift the cable end off the post, then set it aside well away from the battery.

Loosen the J-hook hold-down bar

Toyota secures this battery with a hold-down bar held by J-hooks on each side. Loosen the rear nut a few turns with your 10mm socket but do not remove it completely — the hook has a plastic bracket that keeps it captive in the tray, and fully removing the nut risks dropping the hook where you cannot reach it. Once the bar is slack, lift it off the battery and set it aside. Confirm the battery now rocks freely in the tray before you try to lift it.

🔧 Mechanic's note — Tom Becker

In my experience, Don't fully remove that J-hook nut. Drop the hook down into the tray's depths and you'll spend twenty minutes fishing it out with a magnet.

Lift out the old battery

Grip the battery with both hands and lift straight up and out, keeping it level — it weighs about 40 pounds and the acid inside must stay upright. Set it terminals-up on the ground.

Reconnect positive first

Slide the positive cable onto its post first, tighten the 10mm nut until the clamp can't be twisted by hand, and close the red cover. Tug both clamps to confirm they're solid.

All Done!

Test your repair before closing everything up. If something doesn't work right, double-check your steps.

⚠️ Common Mistakes to Avoid

• Fully removing the rear J-hook nut and dropping the hook into the tray where it is hard to retrieve — just loosen it a few turns.
• Prying stuck cable clamps with a screwdriver and cracking the battery post seal.
• Installing the new battery rotated 180 degrees so the cables will not reach — match the old battery's orientation exactly.
• Leaving the hold-down bar loose, letting the battery bounce and short against the hood.

Tools You'll Need

10mm socket Ratchet (1/4-inch drive fits the tight space well) Small towel or rag (to wrap the loose negative cable) Wire brush or battery terminal cleaner Work gloves Safety glasses

Related Trouble Codes

P0562 System Voltage Low

⚠️ Safety First!

• Wear gloves and safety glasses — battery acid burns skin and eyes.
• Negative cable off first, on last — never reverse the order.
• Do not let tools bridge the positive terminal to any metal part of the car.
• Carry the battery level and with both hands; it is heavy and full of acid.
• Keep sparks and open flame away — charging batteries release explosive hydrogen gas.