The Honda Civic's Collision Mitigation Braking System (CMBS), a crucial safety feature, can sometimes present issues. While generally reliable, understanding potential problems and their solutions is vital for maintaining optimal safety and vehicle performance. This post delves into common CMBS problems reported in 2019 Honda Civics, offering insights into their causes and potential remedies.
Common CMBS Problems in 2019 Honda Civics
Several recurring complaints regarding the 2019 Honda Civic's CMBS have surfaced online and in owner forums. These include:
1. False Positives and Unnecessary Braking:
This is arguably the most frequently reported issue. The CMBS might unexpectedly activate, applying brakes even when a collision isn't imminent. This can occur in various situations, including:
- Bright sunlight: Glare or reflections can sometimes confuse the system's sensors.
- Adverse weather conditions: Heavy rain, snow, or fog can interfere with sensor accuracy.
- Objects near the sensors: Accumulated dirt, debris, or even stickers on the sensors themselves can lead to inaccurate readings.
- Sharp turns: Rapid changes in direction might trigger the system unnecessarily.
2. CMBS Malfunction Indicator Light (MIL) Illumination:
The illumination of the CMBS warning light on your dashboard indicates a potential malfunction within the system. This requires immediate attention, as it suggests the system may not be functioning correctly. Ignoring this warning could compromise safety. Causes can range from sensor errors to more significant internal system problems.
3. Inconsistent or Delayed Braking Response:
In some cases, owners have reported that the CMBS's braking intervention is inconsistent or delayed, failing to engage when a collision appears unavoidable. This could be attributed to several factors, including sensor issues, software glitches, or even damaged components within the CMBS itself.
4. Sensor Errors and Calibration Issues:
The CMBS relies heavily on various sensors to function effectively. Any error or miscalibration within these sensors can lead to malfunctions. These sensors may require recalibration or replacement.
Troubleshooting and Solutions
Addressing CMBS problems often requires a systematic approach:
1. Check Sensors and Clean Them:
Begin by carefully inspecting the CMBS sensors located on the front bumper. Clean any dirt, debris, snow, or ice that might be obstructing the sensors. Use a soft cloth and mild soap and water solution. Avoid harsh chemicals or abrasive materials.
2. Software Update:
A software update from your Honda dealership might resolve some CMBS issues related to glitches or coding errors. Checking for available updates is crucial.
3. Diagnostic Check at a Dealership:
If the problem persists, scheduling a diagnostic check at an authorized Honda dealership is strongly recommended. They possess specialized tools and expertise to pinpoint the exact source of the malfunction. A diagnostic scan can identify error codes that will guide the repair process.
4. Repair or Replacement of Faulty Components:
Following the diagnostic check, necessary repairs or replacements of faulty sensors, wiring, or other CMBS components can be carried out.
Prevention and Maintenance
Regular maintenance plays a vital role in preventing CMBS malfunctions. Keep the sensors clean and unobstructed, and ensure regular vehicle servicing to detect and address potential problems early.
Disclaimer: This information is for general knowledge and informational purposes only. It does not constitute professional automotive advice. Always consult a qualified Honda technician for accurate diagnosis and repair of your vehicle's CMBS system.
