how to fix the Bluetooth not connecting in Toyota Highlander Fourth Generation (2020-present)

Toyota Highlander Fourth Generation (2020-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

472 words

Problem Statement

Learn how to fix Bluetooth connection issues in your 2020-present Toyota Highlander. Step-by-step guide for troubleshooting and resolving the problem.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is in a safe location before performing any infotainment system operations.

Symptoms

•Bluetooth connection fails to establish with mobile devices
•Bluetooth Not Connected message displayed on the infotainment screen
•Inability to make or receive calls via Bluetooth
•Audio streaming from mobile devices is interrupted or nonexistent
•Device does not appear in the Bluetooth device list

Diagnostic Steps

1
Verify that Bluetooth is enabled on the mobile device.
2
Check if the vehicle's Bluetooth system is in pairing mode.
3
Inspect the infotainment system for any software updates.
4
Restart the vehicle's infotainment system by turning off the engine and opening the driver’s door.
5
Delete any existing Bluetooth connections on both the vehicle and the mobile device.
6
Test the Bluetooth connection with a different mobile device to rule out device-specific issues.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

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

•Smartphone
•User manual for the Highlander

Parts Required

•None

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Symptoms

•Bluetooth connection fails to establish with mobile devices

•Bluetooth Not Connected message displayed on the infotainment screen

•Inability to make or receive calls via Bluetooth

•Audio streaming from mobile devices is interrupted or nonexistent

•Device does not appear in the Bluetooth device list

Diagnostic Steps

1
Verify that Bluetooth is enabled on the mobile device.
2
Check if the vehicle's Bluetooth system is in pairing mode.
3
Inspect the infotainment system for any software updates.
4
Restart the vehicle's infotainment system by turning off the engine and opening the driver’s door.
5
Delete any existing Bluetooth connections on both the vehicle and the mobile device.
6
Test the Bluetooth connection with a different mobile device to rule out device-specific issues.

Solution

1. Preparation

Gather necessary tools: smartphone, user manual for the Highlander.
Ensure the vehicle is parked safely with the engine running or in accessory mode.

2. Update Infotainment System

Step 1: Access the infotainment system settings by pressing the "Menu" button.
Step 2: Navigate to "System Settings" then "Software Update."
Step 3: Follow on-screen prompts to check for available software updates.
Step 4: If updates are available, follow the prompts to install them.

3. Pair a New Device

Step 1: On the infotainment screen, select "Bluetooth" from the main menu.
Step 2: Choose "Add New Device" or "Pair Device."
Step 3: On your mobile device, navigate to the Bluetooth settings and search for new devices.
Step 4: Select "Toyota Highlander" when it appears in the list.
Step 5: Confirm the pairing code displayed on both the vehicle and mobile device.

4. Reset Bluetooth Settings (if necessary)

Step 1: In the infotainment system, go to "Bluetooth Settings."
Step 2: Select "Delete All Devices" to clear old connections.
Step 3: Restart the infotainment system again by turning off the engine and opening the driver’s door.