How To Reset Steering Assist Is Reduced Drive With Care

How To Reset Steering Assist Is Reduced Drive With Care is part of a vehicle’s safety system that automatically adjusts steering effort based on factors like steering wheel position, gear pressure, and vehicle speed. Its purpose is to help drivers prevent unintentional lane deviations. However, encountering this warning could indicate a malfunction, potentially increasing the risk of accidents. It’s crucial to address the issue promptly for safety. Many times, a simple reset can resolve the problem caused by technical glitches. This guide will explain how to reset the “Steering Assist is Reduced, Drive With Care” message, identify potential causes, and offer solutions.

Understanding the Meaning of the Warning

This warning message serves to notify the driver of two key aspects: an inaccurate coolant temperature signal sent by the Electric Control Module (ECM) and the current status of the vehicle’s steering system. The steering module relies on proper coolant temperature to account for grease viscosity changes. When the grease becomes colder, it thickens and becomes harder to move, resulting in a heavier steering feel. The steering module compensates for this by providing additional assistance if it detects a colder-than-normal coolant temperature value.

When the Controller Area Network (CAN) bus detects an improper value, the steering module’s functionality is reduced, triggering the “Steering Assist is Reduced, Drive With Care” warning on the vehicle’s computer.

Read More

Possible Reasons for the “Steering Assist is Reduced” Message

Several factors can trigger the appearance of the warning message on the vehicle’s computer:

1. Frequent use of the steering assist.
2. A defective ECM that fails to accurately detect coolant temperature.
3. Low steering fluid level.
4. Steering fluid leakage.
5. Changes in the electric supply system.
6. A malfunctioning engine thermostat stuck open.
7. A broken coolant temperature gauge sensor.
8. The engine cooling fan stuck at high speed.
9. Electric Power Steering (EPS) system malfunction.

Read More : How To Disable Steering Wheel Lock

Fixing the “Steering Assist is Reduced” Warning

Addressing the “Steering Assist is Reduced, Drive With Care” warning involves thorough inspection and, if necessary, repairs or replacements. Here are methods to tackle the issue:

1. Avoid Overuse of Steering Assist: If the warning appears due to excessive or improper use of the steering assist while the vehicle isn’t in motion, stop driving for a few minutes. This often resolves the issue.
2. Check ECM: A defective ECM failing to detect proper coolant temperature can trigger the warning. Use an OBD2 scanner tool to read codes like P0600 to P0605 that indicate ECM issues. If found, repair or replace the ECM.
3. Inspect Steering Fluid Leaks: Check the steering fluid level and for any leaks. Use a UV leak detector kit to identify leaks, and replace any defective power steering hose causing leakage. Refilling the fluid may resolve the issue.
4. Examine Vehicle’s Electronic System: Ensure all disconnected cables are properly reconnected after repairs. Check battery voltage, connections, and the alternator’s functionality.
5. Inspect Thermostat & Temperature Sensor: A malfunctioning thermostat could cause the engine to remain cold. Test with an OBD2 scanner tool (code P0128) or manually check the radiator hose’s temperature. Replace the thermostat and sensor if needed.
6. Check Engine Cooling Fan: A constant high-speed engine cooling fan could make the ECM grease stiffer, causing the warning. Test the cooling fan relay and replace it if faulty.
7. Inspect EPS: Restart the engine to temporarily resolve an EPS system failure. If problems persist, inspect and replace malfunctioning parts.

If the warning persists despite these methods, seek professional assistance for further diagnosis.

Resetting the “Steering Assist is Reduced” Warning

Resetting the warning should be your initial step before delving into part replacements. If a software issue caused the warning, resetting can eliminate it. Here are various methods to reset the warning:

• Turn Off and On Vehicle: Turn the ignition off and on multiple times (2 to 3) to reset the vehicle’s electrical components. If no other issues exist, the warning should disappear after this.
• Disconnect Battery: Disconnect the vehicle’s battery terminals (both negative and positive) for about 30 seconds. Reconnect the battery, start the engine, and check if the warning clears.
• Use the Steering Wheel: Manually resetting the steering assist might be necessary if it doesn’t reset automatically. Turn the steering wheel left until it stops, then turn it right until it stops, and finally return it to the center position.
• Scanner Tool: If you possess an OBD2 scanner tool, use it to erase previously stored codes. This might successfully reset and eliminate the warning. Follow the scanner’s instructions to erase codes.

Read More : How To Reset Steering Angle Sensor Without Scanner

Conclusion

The “Steering Assist is Reduced, Drive With Care” warning serves as an important indicator of a communication interruption or malfunction. Ignoring it could lead to potential accidents. Properly inspect and address the issue to ensure your vehicle’s safety. This guide provides insights into the possible causes and fixes for the problem. Most importantly, it outlines how to reset the message in case of a software-related issue.