2020 Toyota Corolla Battery Problems : Causes And Fixes

Your 2020 Toyota Corolla is a reliable vehicle, but even the best cars can experience Toyota Corolla battery failure from time to time. If you’re not careful, a dead battery can ruin your day, leaving you stranded on the side of the road or unable to start your car for work.

However, there is no need to give up. In this blog post, we’ll discuss the most common 2020 Toyota Corolla battery problems, their causes, and how to solve them. We’ll also give a few tips on how to prevent battery problems in the first place.

So whether you’re a new Toyota Corolla owner or you’re just looking for more information about battery problems, this blog post is for you. Read on to learn everything you need to know about 2020 Toyota Corolla battery problems, so you can avoid them and keep your car on the road.

Symptoms of 2020 Toyota Corolla battery problems

There are a few key symptoms that can indicate that your 2020 Toyota Corolla battery is failing. These include:

  • Slow engine crank: When you start your car, the engine should crank over quickly and easily. A failing battery could cause the engine to crank slowly or be difficult to start.
  • Check engine light: The check engine light can turn on for different causes, including a failing battery. If the check engine light comes on, seek the help of an experienced mechanic to figure out what’s wrong.
  • Clicking sound when turning the key: If the key makes a clicking sound when you turn it in the ignition, there may not be enough power in the battery to start the vehicle.
  • Electronics work but the car won’t start: If the headlights, radio, and other electronics work but the car won’t start, it could be a sign of a weak battery.
  • Dim headlights: One of the many possible causes of dim headlights is a weak battery. If your headlights are dim, have your battery tested to rule out a problem.
  • Foul-smelling odor: If you smell a foul odor coming from the engine compartment, it could be a sign of a leaking battery.
  • Damage to the battery terminals: Damage to the battery terminals can impede the battery’s ability to supply power to the vehicle.

Causes of Battery Problems

There are a few main causes of battery problems:

  • Extreme temperatures: Extreme heat and cold can both damage your car battery. It is crucial to have your battery checked on a regular basis if you live in an area with harsh winters.
  • Age of the battery: Car batteries typically last for three to five years. After that, they start to lose their ability to hold a charge. If your battery is more than five years old, it’s a good idea to have it replaced.
  • Driving habits: If you frequently make short trips or drive in stop-and-go traffic, your battery may not have enough time to recharge. This can eventually lead to battery failure.
  • Alternator malfunction: When the car is operating, the alternator is what charges the battery. If the alternator is faulty, it won’t be able to charge the battery properly, which can lead to battery failure.
  • Parasitic drain: A parasitic drain is a small amount of electrical current that is drawn from the battery even when the car is turned off. This can be caused by a variety of things, such as a faulty light bulb or a stuck relay.

How to Solve Battery Problems

There are a few things you can do to solve battery problems:

  • Jump-start the car: If your battery is dead, you can jump-start the car using another car with a working battery.
  • Replace the battery: If your 2020 Toyota Corolla battery life is old or damaged, you’ll need a 2020 Toyota Corolla battery replacement. When choosing a new battery, be sure to select the correct type and size for your car.
  • Battery terminal cleaning: Use a wire brush and baking soda solution to clean corroded battery terminals. 
  • Test the alternator: If you suspect that the alternator is faulty, have it tested by a qualified mechanic.
  • Fix any parasitic drains: If there is a parasitic drain, have it fixed by a qualified mechanic.


Q: How long does a 2020 Toyota Corolla battery last?

A: A 2020 Toyota Corolla battery typically lasts for three to five years. However, the lifespan of your battery will depend on several factors, such as the climate you live in, your driving habits, and how well you maintain your battery.

Q: How much does it cost to replace a 2020 Toyota Corolla battery?

A: The cost to replace a 2020 Toyota Corolla battery will vary depending on the type of battery you choose and the location where you have the battery replaced. However, the cost of a new battery should be in the range of $100 to $200.

Q: Can I replace the battery in my 2020 Toyota Corolla myself?

A: Yes, you can replace the battery in your 2020 Toyota Corolla yourself. However, it’s important to follow the instructions carefully and to take safety precautions.

Here are the steps to replace the battery in a 2020 Toyota Corolla:

  1. Disconnect the negative battery terminal.
  2. Disconnect the positive battery terminal.
  3. Remove the old battery.
  4. Install the new battery.
  5. Connect the positive battery terminal.
  6. Connect the negative battery terminal.

Additional Notes

  • Be sure to wear safety glasses and gloves when replacing the battery.
  • Keep your hands away from the battery’s positive and negative terminals simultaneously.
  • Make sure to tighten the battery terminals securely.


Battery problems are a common occurrence for all vehicles, including the 2020 Toyota Corolla. By being aware of the symptoms of a failing battery and the causes of battery problems, you can take steps to prevent vehicle battery problems and extend the life of your battery.

If you do experience battery problems, there are a few things you can do to solve them, such as jump-starting the car, replacing the battery, cleaning the battery terminals, testing the alternator, or fixing any parasitic drains.

If you have any questions or concerns about your 2020 Toyota Corolla battery, please consult a qualified mechanic.

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