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What are the common problems with the Toyota Safety Sense system in the 2021 Camry? - Toyota Camry
Home/Cars/Toyota/Camry/Eighth Generation (2018-present)/What are the common problems with the Toyota Safety Sense system in the 2021 Camry?

What are the common problems with the Toyota Safety Sense system in the 2021 Camry?

Toyota Camry Eighth Generation (2018-present)

Error Codes
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
4 min read
686 words

Problem Statement

Learn about common issues with the Toyota Safety Sense system in the 2021 Camry, including symptoms, diagnostic steps, and repair instructions.

Affected Component
Toyota Safety Sense system

Symptoms

  • •Cruise control disengages unexpectedly
  • •Fails to maintain speed
  • •Does not respond to speed adjustments
  • •Warning alerts activate without lane departure
  • •System fails to detect lane markings
  • •Sudden braking without an obstacle
  • •High beams do not switch on/off automatically
  • •Warning indicators not lighting up when vehicles are in blind spots

Diagnostic Steps

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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
  • •Multimeter
  • •Basic Hand Tools
  • •Cleaning Supplies
  • •Alignment Tools

Additional Information

Affected Component
Toyota Safety Sense system
Difficulty
medium
Severity
medium
Tools Required
6 items

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Back to Generation

Common Problems with the Toyota Safety Sense System in the 2021 Camry (XV70)

The Toyota Safety Sense (TSS) system is designed to enhance safety through various driver-assist technologies. However, there can be issues that arise, leading to malfunctions or unexpected behavior. Below, we’ll outline common problems, symptoms, diagnostic steps, tools required, and repair instructions.

Common Problems

  1. Adaptive Cruise Control Malfunction

    • Symptoms: Cruise control disengages unexpectedly, fails to maintain speed, or does not respond to speed adjustments.

  2. Lane Departure Alert (LDA) Issues

    • Symptoms: Warning alerts activate without lane departure, or the system fails to detect lane markings.

  3. Pre-Collision System (PCS) False Activation

    • Symptoms: Sudden braking without an obstacle or warning alerts triggered with no apparent reason.

  4. Automatic High Beams Not Functioning

    • Symptoms: High beams do not switch on/off automatically as expected.

  5. Blind Spot Monitor (BSM) Malfunctions

    • Symptoms: Warning indicators not lighting up when vehicles are in blind spots.
Tools Required
  • OBD-II Scanner
  • Torque Wrench
  • Multimeter
  • Basic Hand Tools (screwdriver sets, wrenches)
  • Cleaning Supplies (microfiber cloth, glass cleaner)
  • Alignment Tools (if needed)
Repair Instructions
1. Cleaning Sensors and Cameras
  • Step 1: Clean the front camera and sensor areas with a microfiber cloth and glass cleaner to remove dirt and debris.
  • Step 2: Check the alignment of the sensors, ensuring they are not displaced or damaged.
2. Addressing Adaptive Cruise Control Issues

  • Step 1: If cruise control is malfunctioning:

    • Use the OBD-II scanner to check for trouble codes.
    • If codes are present, follow the diagnostic flow for the specific code.

  • Step 2: If no codes are present, check the cruise control switch for proper operation and inspect the brake light switch.

3. Repairing Lane Departure Alert Problems
  • Step 1: Inspect the lane departure camera for obstructions or damage.
  • Step 2: Use the scanner to check for calibration settings. If necessary, recalibrate the LDA system following the manufacturer’s specifications.
4. Fixing Pre-Collision System Issues
  • Step 1: Test the radar sensor functionality. If it’s not responding:
    • Use the multimeter to check the power supply to the radar sensor.
  • Step 2: Replace the sensor if it’s defective, ensuring all connections are secure.
5. Automatic High Beams
  • Step 1: Check the headlight switch operation. Ensure it is set to the automatic position.
  • Step 2: Inspect the sensor located on the front windshield. Clean or replace if damaged.
6. Blind Spot Monitor Repairs
  • Step 1: If BSM is not functioning, check the wiring and connectors leading to the side mirrors.
  • Step 2: Use the OBD-II scanner to identify any trouble codes related to the BSM and follow the corresponding repair process.
Final Steps
  1. Test Drive: After repairs, perform a test drive to ensure that all systems are functioning as intended.
  2. Recheck Codes: Use the OBD-II scanner to clear any codes and confirm that none reappear after the test drive.
  3. Customer Feedback: Ensure the owner understands how to operate the TSS features and verify that they are satisfied with the repairs.

By following the above steps, you can effectively diagnose and repair common problems with the Toyota Safety Sense system in the 2021 Camry. Always refer to the specific service manual for detailed specifications and procedures.