Acura – Low Speed Braking Control  Problem

If your Acura displays a “Low Speed Braking Control Problem” warning, it means a fault has been detected in the system that helps prevent collisions at low speeds—typically when parking or maneuvering in tight spaces. This feature uses sonar sensors and wheel speed data to detect obstacles and apply the brakes automatically if needed. If this system isn’t working correctly, your Acura may not stop in time to avoid hitting something. With a complete system scan using a tool like the YOUCANIC Scanner, you can quickly find out whether the issue is a simple sensor fault or something more serious.

What Does the Low Speed Braking Control  Problem Mean?

The low-speed braking control is part of your vehicle’s advanced safety features, which is responsible for assisting the user when driving the vehicle slowly. It creates an audible sound when driving from 2-10 km/h and automatically applies the brakes once it detects a collision is about to happen. This is to expand the capability of the collision mitigation braking. A Faulty low-speed braking control triggers a warning message. Check your owner’s manual on how to operate your low-speed braking control. 

⚠️ Why You Should Fix It As Soon As Possible:

• Safety Risk – It may cause a collision that may damage your car. 
• Performance Issues – The vehicle will fail to detect objects in the area. The feature will be useless, and it may cause you to drive inconveniently, especially when parking your vehicle.
• Costly Repairs if Ignored – Ignoring the issue may cause more damage. The estimated cost for repairing the issue ranges from $100-$500.

Common Causes

Here are the most common reasons this light appears:

• ⚠️Faulty Wire – Loose, frayed, or burned wires can cause a lost electrical connection.
• ⚠️Faulty Sonar Parking Sensor – A faulty parking sensor may get dirty or get damaged. This may result in a malfunction and the issue of the warning message.
• ⚠️Faulty Parking Assist Module – A faulty parking assist module may become faulty due to electrical issues. If this happened, the data from the sonar sensor would not be processed, which would prevent the low-speed braking control from operating. 
• ⚠️Faulty Wheel Speed Sensor – The wheel speed sensor is responsible for detecting the wheel speed rotation. The low-speed braking control relies on the data sent by the sensors to the ABS module. A faulty sensor may give incorrect data, causing the system to malfunction. 
• ⚠️Faulty ABS Module – The module receives data from the wheel speed sensor, analyzes this information, and sends a signal to apply the brakes if needed, working together with the parking assist module. If the module is faulty, it may not process the information, leading to a malfunction. 

🛠️ Pro Tip: Use an OBD-II scanner to check for error codes related to the issue.

Common Symptoms

• A warning message appears on your dashboard. If there is an issue with the slow-speed braking control, the system triggers a warning message to notify the user and prompt them to fix the issue as soon as possible. 
• No Audible Alert – If the sonar parking sensor or parking assist module is faulty. It may not activate the audible alert.
• The Vehicle is Not Applying the Brakes Automatically – If your vehicle has an issue with the wheel speed sensor or ABS module, the brakes will not be applied. A faulty sonar parking sensor or parking assist module may also prevent the brakes from operating, as automatic braking relies on sonar sensor information.
• The Audible Alert is Always On – A dirty or faulty sonar parking sensor may detect dirt, causing a continuous alert.

Troubleshooting

Before taking your car to a mechanic, try these DIY fixes:

1. Inspect Fuses – Look for damaged or melted fuses in your vehicle’s fuse box. This could be an indicator of an electrical issue in your car. 
   ONLY REPLACE OLD FUSES WITH NEW ONES OF THE SAME AMPERAGE.
2. Inspect Wiring & Connections – Look for loose or frayed wires around the ABS module, parking assist module, sonar parking sensor, and wheel speed sensors. 
3. Inspect the Sonar Parking Sensor for Dirt and Damage – The sensor can become damaged or dirty over time. Check the surrounding sensors for dirt, water damage, or loose wiring, as these may be the reason for the malfunction.
4. Inspect Wheel Speed Sensor – Look for any sign of dirt or damage. Clean the sensor and install it properly. Use an OBD-II scanner to check the wheel speed condition in the live data. Test drive the vehicle to check if the wheel speed sensor is working properly.
5. Use an OBD-II Scanner – Follow this step-by-step guide on how to read and clear fault codes on an Acura.
6. Reset the System – If the warning light or error message was caused by a system glitch, it can be cleared by disconnecting the battery for 30 minutes or using a scan tool.
7. Check for Updated Software – Visit a nearby Acura dealership to update your low-speed braking system if necessary.

The following video shows how to run a full system scan on Acura vehicles, which should help you narrow down what is causing the low-speed braking control error message.

Acura has recalls related to low-speed braking control, especially for the 2024 ZDX EV models. Contact your nearest ACURA dealership to check your vehicle as soon as possible. You may check your vehicle if it has a recall on this website: https://owners.acura.com/service-maintenance/recalls

The following picture is a diagram to help you through the steps of diagnosing the low-speed braking error message.

Seek help from an expert if you can not fix the problem.

Common OBD-II Fault Codes 

If you scan your vehicle with an OBD-II scan tool, you may see one of these codes.

B2610 – Left Front Sensor Failure
B2611 – Right Front Sensor Failure
B2612 – Left Center Sensor Failure
B2613 – Right Center Sensor Failure
B2614 – Left Rear Sensor Failure
B2615 – Right Rear Sensor Failure
B2616 – Left Center Rear Sensor Failure
B2617 – Right Center Rear Sensor Failure
B2620 – Internal Circuit Malfunction
B2621 – Voltage Supply Error
B2622 – Sensor Signal Error
B2623 – Sensor Communication Line Malfunction
C0035 – C0042 – Open/Short in any individual wheel speed sensor (FL, FR, RL, RR)
C1382 – Internal Circuit Failure (Modulator)
U0416-68 – Invalid Data from VSA/ABS Module

🚗 Need help decoding a fault code? Use the YOUCANIC Scanner to read and clear trouble codes instantly.

Follow this video tutorial on how to read and clear fault codes on an Acura.

FAQs

1. Is the feature not using a camera? ➡️ Yes, the feature doesn’t use a camera to detect objects. The 360 camera helps the user view the front, side, and rear of the vehicle, which is helpful in increasing safety. 
2. Can the warning message affect my braking performance? ➡️Yes, if the cause of the issue is in the brake system. A faulty ABS or wheel speed sensor may lead to abnormal driving conditions and low braking performance.  
3. Can a single faulty sonar sensor disable the automatic braking? ➡️No, it won’t disable the vehicle’s automatic braking. Features have their requirements before they can be activated. The automatic braking may be affected at low speeds only if there is a fault in the sonar parking sensor. It may cause sudden braking even though there is no object in the area, or the automatic braking may not operate at all, especially if the area of a collision is on that side of a faulty sensor. 
4. Is there any calibration needed in replacing the sensors? ➡️ Typically, no calibration is required when replacing the sonar parking sensor or the parking assist module.
5. How can the wheel speed sensor affect the operation of the feature? ➡️ The requirement for the feature to activate relies on the speed. If the sensor malfunctions, it may not meet the speed requirement, causing the system to automatically disable the feature. 

Final Thoughts

While dirty sensors or a blown fuse might be to blame, more serious issues, such as a faulty ABS module or speed sensor, could compromise your braking performance. The YOUCANIC Full System Scanner gives you access to every module in your Acura—not just the engine—so you can diagnose problems in the braking, sensor, and safety systems with ease. Whether you’re a DIYer or want to avoid guesswork at the mechanic, scan your vehicle first to fix the problem fast and drive with peace of mind.

Experts Who Contributed to This Article

Elbert Nonog, Automotive National Cert., BS Mechanical Eng.

Diagnostic Specialist13+ years of experience

Elbert G. Nonog is an Automotive Technical Writer and Training Manager with over 10 years of experience across major brands including Chevy, MG, Ford, Volkswagen, and Toyota. Rising from technician to leadership roles, Elbert excels at transforming complex automotive concepts into accessible training materials and documentation. His expertise spans conventional and electric vehicle systems, nationwide dealership training, and aftersales operations management. With TESDA certification and pursuing further education from the Technological University of Philippines, Elbert effectively bridges the gap between automotive engineering and practical application for industry professionals and enthusiasts.

rhila, ASE Certified

Diagnostic Specialist15+ years of experience

Rushit Hila is a dedicated automotive engineer with ASE G1 certification and specialized training from an esteemed Automotive Specialty School. His hands-on experience and technical expertise in advanced diagnostics, system integration, and performance optimization make him a trusted voice in the industry.