Is your 2021 Toyota Highlander key fob starting to feel a little unresponsive? Don’t worry, you’re likely just dealing with a low battery. Like all batteries, the one in your key fob will eventually need replacing. The good news is that changing the battery in your 2021 Toyota Highlander key fob is a straightforward process you can easily do yourself at home. This guide will walk you through each step to get your key fob working like new again, saving you time and a trip to the dealership for a simple battery replacement.
Step-by-Step Guide to Replacing Your 2021 Toyota Highlander Key Fob Battery
Changing your Toyota Highlander key fob battery is easier than you might think. Follow these simple steps, and you’ll have your key fob powered up in no time.
Step 1: Remove the Mechanical Key
First, locate the small release button on your key fob. It’s usually a metal button situated near the key ring loop or above the metal key portion of the fob. Press and hold this button while gently pulling out the mechanical key from the key fob. Set the key aside in a safe place.
Step 2: Open the Key Fob Casing
Now that you’ve removed the mechanical key, you’ll see a small slot or indentation where the key was housed. This slot is designed to help you open the key fob casing. Take a small flathead screwdriver or a similar thin, flat object. Carefully insert the tip of the screwdriver into the slot and gently twist. This should start to separate the two halves of the key fob. Work your way around the seam, gently prying until the case pops open. Be careful not to apply too much force to avoid damaging the plastic casing.
Step 3: Access and Remove the Old Battery
Once the key fob is open, you’ll see the internal components, including a green circuit board. Carefully lift the circuit board out of the casing to access the battery compartment underneath. You may need to gently wiggle it free. With the circuit board removed, you’ll now see the battery. Take note of the type and orientation of the battery before removing it. Most Toyota key fobs, including the 2021 Highlander, use a CR2032 3V lithium battery. Gently pry out the old battery. You can often use your fingernail or the tip of a pen to help lift it out.
Step 4: Install the New Battery
Take your new CR2032 battery and install it into the battery compartment. Ensure the positive (+) side of the battery is facing the correct direction – usually upwards, but double-check the markings in the battery compartment to be certain. Push the new battery firmly into place until it’s securely seated.
Step 5: Reassemble the Key Fob
Carefully place the circuit board back into its position in the key fob casing. Make sure it sits flush and all components are properly aligned. Now, align the two halves of the key fob casing and press them firmly back together until they snap securely shut. You should hear a click indicating that the case is properly closed. Finally, slide the mechanical key back into the key fob until it clicks into place.
What Type of Battery Does a 2021 Toyota Highlander Key Fob Need?
The 2021 Toyota Highlander key fob typically uses a CR2032 3V lithium battery. This is a common type of battery and can be found at most drugstores, grocery stores, electronics stores, and online retailers like Amazon. It’s always a good idea to double-check your owner’s manual to confirm the exact battery type for your specific vehicle, but CR2032 is the standard for this model.
When to Consider Full Key Fob Replacement
While battery replacement solves most key fob issues, there are times when you might need a full key fob replacement. If your key fob is lost, severely damaged, or malfunctioning even after a battery change, it’s time to consider replacing the entire unit. For a Toyota key fob replacement, it’s best to contact your local Toyota dealership, like Chicago Northside Toyota. They can ensure you get the correct key fob for your 2021 Highlander and program it to work seamlessly with your vehicle. While DIY battery replacement is simple, key fob programming and replacement often require specialized equipment and expertise available at a dealership.
Get Back on the Road with a Fresh Key Fob Battery
Changing the battery in your 2021 Toyota Highlander key fob is a quick and easy maintenance task that can save you from key fob headaches. By following these steps, you can restore your key fob’s functionality and get back to enjoying the convenience it offers. If you encounter any issues or need further assistance with your Toyota key fob, don’t hesitate to reach out to your trusted Toyota service center for expert help.
