Are there known issues with the adaptive cruise control in the 2019 Toyota Camry?

Toyota Camry Eighth Generation (2018-present)

Error Codes

medium

Difficulty

medium

Severity

4 min read

673 words

Problem Statement

Learn about the common issues, symptoms, and diagnostic steps for the adaptive cruise control system in the 2019 Toyota Camry.

Affected Component

adaptive cruise control system

Symptoms

•Inconsistent Speed Control
•Failure to Engage
•Malfunction Indicator Light
•False Braking
•System Inoperative

Diagnostic Steps

1
Visual Inspection
2
OBD-II Scan
3
Test the System
4
Check Calibration

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
•Torque Wrench
•Screwdrivers (Phillips and flathead)
•Multimeter
•Diagnostic scan tool (Toyota Techstream recommended)
•Safety glasses and gloves

Related Faults

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Solution

Known Issues with Adaptive Cruise Control in the 2019 Toyota Camry (XV70)

The adaptive cruise control (ACC) system in the 2019 Toyota Camry has been reported to experience some issues, although these may not be universal to all vehicles. Below are common symptoms, diagnostic steps, tools required for troubleshooting, and potential repair instructions.

Tools Required

OBD-II Scanner
Torque Wrench
Screwdrivers (Phillips and flathead)
Multimeter (for electrical testing)
Diagnostic scan tool (Toyota Techstream recommended)
Safety glasses and gloves

Repair Instructions

If Radar Sensor is Dirty or Obstructed

Clean the Sensor
- Locate the radar sensor behind the front grille.
- Use a clean microfiber cloth and a suitable cleaner (like isopropyl alcohol) to gently clean the surface of the sensor.
- Ensure no debris obstructs the sensor's view.

If Radar Sensor is Damaged

Remove the Grille
- Use a screwdriver to remove screws securing the front grille.
- Carefully pull the grille away to expose the radar sensor.
Disconnect the Sensor
- Unplug the wiring harness from the radar sensor.
- Remove the sensor using the appropriate socket or wrench.
Install New Sensor
- Install the new radar sensor in reverse order of removal.
- Reconnect the wiring harness.
Reattach the Grille
- Secure the grille back in place with screws.
Calibration
- Use a Toyota Techstream tool to perform a calibration procedure for the radar sensor.

If Electrical Issues are Detected

Inspect Wiring Harness
- Trace the wiring from the radar sensor to the ECU.
- Look for frayed wires or poor connections.
Test Voltage and Ground
- Use a multimeter to test the voltage at the radar sensor connector.
- Check for good ground connections.
Repair or Replace Wiring
- If any wiring issues are found, repair or replace the damaged sections of the harness.

If Software Issues are Detected

Update Software
- If diagnostic codes indicate a software issue, connect the vehicle to a Toyota Techstream tool.
- Check for available software updates for the vehicle’s ECU and install as necessary.
Reset System
- After updates, clear any existing trouble codes and reset the adaptive cruise control system through the diagnostic tool.

Final Steps

After completing repairs and calibration, take the vehicle for a test drive to ensure the adaptive cruise control functions correctly.
Monitor for any recurring symptoms and recheck using the diagnostic steps if issues persist.

By following these steps, you should be able to diagnose and potentially fix common adaptive cruise control issues in the 2019 Toyota Camry. Always refer to the vehicle's service manual for specific details and specifications related to your model.