how to reset collision avoidance system on Toyota Highlander XU70 (2020-Present)

Toyota Highlander XU70 (2020-Present)

Error Codes

30 minutes to 1 hour

Time

medium

Difficulty

medium

Severity

3 min read

523 words

Problem Statement

Learn how to reset the collision avoidance system on a Toyota Highlander XU70 (2020-Present). Step-by-step guide with diagnostic steps and safety tips.

Affected Component

Electrical

Estimated Time

30 minutes to 1 hour

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always ensure the vehicle is in park and the engine is off while working on electronic systems

Symptoms

•Collision avoidance warning light illuminated
•Frequent false alarms from the system
•System not responding to obstacles
•Radar sensor blockage message displayed
•System fails to activate during testing

Diagnostic Steps

1
Check for Error Codes using an OBD-II scanner
2
Inspect Radar Sensors for obstructions
3
Verify Wiring Connections to the radar sensors
4
Perform System Self-Test using the vehicle’s onboard diagnostics
5
Reset the System through the vehicle’s settings menu or OBD-II scanner

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

•OBD-II scanner
•Microfiber cloth
•Torque wrench

Parts Required

•None required for resetting; however, ensure sensors are clean and functional.

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Solution

1. Preparation

Gather Tools: Ensure you have an OBD-II scanner, cleaning materials (such as a microfiber cloth), and a torque wrench if necessary for reassembly.
Safety Precautions: Park the vehicle on a level surface, turn off the engine, and engage the parking brake.

2. Clean Radar Sensors

Locate the Sensors: Identify the location of the radar sensors, typically located in the front grill area.
Clean the Sensors: Use a soft microfiber cloth to gently clean the sensors, removing any dirt or debris that may obstruct their function.

3. Reset Collision Avoidance System

Using Vehicle Settings:
1. Turn on the vehicle ignition without starting the engine.
2. Navigate to the “Settings” menu on the vehicle’s infotainment system.
3. Select “Driver Assistance” or similar option.
4. Find the “Collision Avoidance System” settings and look for a “Reset” option.
5. Confirm the reset and wait for the system to reboot.
Using OBD-II Scanner:
1. Plug in the OBD-II scanner into the vehicle’s diagnostic port.
2. Turn the ignition to the ON position.
3. Follow the on-screen prompts to navigate to the collision avoidance system.
4. Select the option to reset or clear codes.
5. Disconnect the scanner after the process is complete.