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AcuraWatch System Malfunction on 2025 Integra Type S

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Mike T. · rep 0 · May 26, 4:01 AM · 1 replies · solved · Question

Vehicle: 2025 Acura Integra Type S

I've been getting intermittent "AcuraWatch System Malfunction" warnings on my 2025 Integra Type S. It seems to happen randomly, sometimes when it's raining, but also on clear days. When the warning appears, features like Lane Keep Assist and Adaptive Cruise Control become unavailable.

It usually clears itself after a while or after restarting the car, but it's happening more frequently now. Is there a common cause for this with the Integra, or specific sensors I should check? I want to make sure my safety features are reliable.

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 26, 4:01 AM

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ClearTheCode admin answer:

Intermittent AcuraWatch system malfunctions are concerning, especially since these features are crucial for safety and convenience. Here's what typically causes these issues and what steps you should take:

  1. Sensor Obstruction: The most common cause is a blocked sensor. The AcuraWatch system relies on a front radar sensor (usually behind the Acura emblem) and a camera (mounted at the top of the windshield). Any dirt, mud, snow, ice, or even a heavy bug splatter can temporarily obstruct these sensors. Ensure the emblem area and the windshield in front of the camera are always clean.
  2. Environmental Factors: Heavy rain, fog, or direct sunlight can sometimes interfere with the sensors' ability to accurately detect surroundings, leading to temporary malfunctions. If it clears up after the weather improves, this is likely the cause.
  3. Windshield Damage/Replacement: Even a small crack or chip near the camera's field of view can affect its calibration. If your windshield has been replaced, improper calibration of the camera can cause persistent issues.
  4. Misalignment or Damage: If the vehicle has had a minor bump or even a curb strike, it could subtly misalign the radar sensor or camera, requiring professional recalibration.
  5. Software Glitch or Wiring Issue: Less commonly, a software bug in the AcuraWatch module or a loose electrical connection could be the culprit.

When to See a Shop: Given that the issue is becoming more frequent and occurs even on clear days, it's highly recommended to take your 2025 Integra Type S to an Acura dealership. They have specialized diagnostic equipment that can:

  • Read Specific Diagnostic Trouble Codes (DTCs): ADAS systems often generate U-codes (network communication issues) or C-codes (chassis/ADAS specific sensor faults) that generic OBD-II scanners cannot read.
  • Perform Sensor Calibration: If a sensor is misaligned, it will need precise calibration using specific targets and software.
  • Check for Technical Service Bulletins (TSBs): Acura may have issued TSBs for known AcuraWatch issues and corresponding software updates.

Do not attempt to fix or recalibrate these sensors yourself, as it requires specialized tools and expertise to ensure the safety systems function correctly.

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