how to replace the battery in Toyota Highlander Fourth Generation (2020-present) key fob

Toyota Highlander Fourth Generation (2020-present)

Error Codes

15-30 minutes

Time

easy

Difficulty

low

Severity

3 min read

425 words

Problem Statement

Learn how to replace the battery in your Toyota Highlander key fob (2020-present). Step-by-step guide with symptoms, tools, and safety tips.

Affected Component

Electrical

Estimated Time

15-30 minutes

⚠️ Safety Warnings

Important safety information - read before proceeding

•Handle the battery carefully to avoid short-circuiting.
•Dispose of the old battery properly according to local regulations.

Symptoms

•Key fob buttons not responding
•Difficulty unlocking or locking doors remotely
•Reduced range of key fob signal
•Warning indicator light on the dashboard for key fob battery

Diagnostic Steps

1
Confirm that the issue is with the key fob by testing another fob if available.
2
Inspect the key fob for physical damage or water intrusion.
3
Check the battery voltage using a multimeter if accessible.
4
Verify that the vehicle recognizes the key fob by attempting to start the engine.

Solution

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Small flat-head screwdriver

Parts Required

•CR2032 battery

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Solution

1. Preparation

Gather required tools and parts.
Ensure you have a clean, flat workspace.
Wear safety glasses if desired.

2. Open the Key Fob

Use a small flat-head screwdriver to gently pry apart the key fob along the seam.
Start at the notch in the fob and work your way around the edge until the fob opens.

3. Remove the Old Battery

Identify the battery type (usually CR2032 for Toyota key fobs).
Carefully note the battery orientation (positive side facing up).
Using the screwdriver, gently lift the battery out of its compartment.

4. Install the New Battery

Insert the new battery, ensuring the correct orientation (positive side up).
Press down gently until it is securely in place.

5. Reassemble the Key Fob

Align the two halves of the key fob and press them together until they click into place.
Ensure there are no gaps between the two halves to confirm the fob is sealed properly.

6. Test the Key Fob

Stand near the vehicle and test all functions of the key fob, such as locking and unlocking doors.