The Toyota Highlander is a vehicle known for its reliability and performance. A key component that ensures your Highlander starts and runs smoothly is the battery. In this blog, we’ll cover everything you need to know about the Toyota Highlander’s battery, from selection to maintenance and replacement.
Understanding Battery Specifications
The battery in your Toyota Highlander is not just any battery; it’s a carefully selected component that matches the electrical requirements of your vehicle. For instance, the 2021 Toyota Highlander uses an H6 battery, while the 2020 model uses an H5¹. These codes correspond to specific dimensions and terminal types designed to fit your Highlander perfectly.
Signs of a Failing Battery
A failing battery can lead to a host of issues, from dimming headlights to difficulty starting the engine. Here are some signs that your Highlander’s battery may need attention:
- Slow engine crank: When the battery is dying, you may notice that the engine takes longer to start.
- Check engine light: Sometimes, a weak battery can cause the check engine light to come on.
- Low battery fluid level: If the fluid level in the battery is below the lead plates, it’s time to have the battery and charging system tested.
- Swelling battery case: Extreme temperatures can cause the battery case to swell, which is a sign that the battery life is coming to an end.
Choosing the Right Replacement
When it’s time to replace your Highlander’s battery, it’s important to choose the right one. The battery size for the 2018 Toyota Highlander, for example, is 24F, which has specific dimensions of 10 3/4″ x 6 13/16″ x 9″¹. Always refer to your owner’s manual or a trusted battery size guide to ensure you’re getting the correct battery for your model year.
DIY Battery Replacement
Replacing the battery in your Toyota Highlander can be a straightforward DIY task. Here’s a simplified guide:
- Locate the battery: Open the hood and find the battery.
- Remove the old battery: Disconnect the negative terminal first, followed by the positive. Remove any securing brackets and lift out the old battery.
- Install the new battery: Place the new battery in the tray, secure it with the bracket, and connect the positive terminal first, then the negative.
Professional Assistance
If you’re not comfortable replacing the battery yourself, or if you want to ensure it’s done correctly, seek professional assistance. Your local Toyota dealership or a certified mechanic can provide this service²³.
Conclusion
The battery is the heart of your Toyota Highlander’s electrical system. Keeping it in good condition is essential for reliable performance. Whether you’re choosing a replacement battery or maintaining your current one, understanding the basics can help you make informed decisions and keep your Highlander running smoothly.
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