How do you reset the BAS ESP light?

The BAS/ESP light isn’t reset with a simple button press. It usually requires diagnosing and repairing the fault behind it, then clearing codes with an OBD-II scanner or dealer tooling.

The BAS (Brake Assist System) and ESP (Electronic Stability Program) are safety features designed to help maintain braking performance and steering control. When the system detects a problem—such as a faulty sensor, low brake fluid, or an ABS issue—the warning light comes on. Resetting the light without addressing the root cause won’t fix the underlying fault and could leave the vehicle unsafe to drive.

What the BAS ESP light indicates

The warning is a signal that a braking or stability-control component may be malfunctioning. Common triggers include low brake fluid, worn brake components, faulty wheel speed sensors, a defective steering angle sensor, ABS faults, or issues within the ESP control module. A diagnostic code from an OBD-II scanner usually identifies the likely culprit.

To determine whether you can safely reset the light, follow a practical checklist that focuses on obvious, observable issues and appropriate diagnostics. The steps below cover typical scenarios across many modern vehicles, though exact procedures can vary by make and model.

These are practical steps you can perform to identify and address common causes before attempting to reset the light.

1. Check the brake fluid level and top up if it’s low. Look for leaks along brake lines or at the master cylinder.


2. Inspect the brake pads, rotors, and overall braking hardware for wear or damage. Note any grabbing or unusual noises.


3. Inspect wheel speed sensors and wiring around each wheel for corrosion, disconnection, or damage. A faulty sensor frequently triggers ESP/ABS codes.


4. Check relevant fuses and relays for the ABS/ESP system; replace any that are blown.


5. Use an OBD-II scanner that can read ABS/ESP codes to pull fault codes from the vehicle’s ABS/ESP controller.


6. If codes point to a faulty component, perform the necessary repair or replacement before attempting to clear codes (for example, replace a wheel speed sensor or fix a fluid leak).

Concluding: After completing these checks and repairs, you can attempt to reset the light to verify that the system is back to normal operation. If you still see the light, or if codes return, seek professional service promptly.

Resetting the BAS ESP light after repairs

Once the underlying fault is fixed, the light can usually be cleared. The exact method depends on your vehicle and the diagnostic tooling you have access to. Below are common approaches used across many makes/models.

These steps outline how to clear codes and reinitialize the BAS/ESP system after repairs or component replacements.

1. Connect an OBD-II diagnostic scanner that has ABS/ESP capabilities. Turn the ignition to the ON position without starting the engine.


2. Read the ABS/ESP trouble codes to confirm the fault is resolved. If the codes persist, double-check the repair before proceeding.


3. Clear or reset the ABS/ESP codes with the scanner. Some vehicles require a dedicated reset function or a specific sequence to relearn sensors after clearing codes.


4. In some cars, you may need to perform a vehicle-specific reset or calibration—such as steering angle sensor recalibration or wheel speed sensor relearn. Follow the service manual or tool prompts.


5. Take the car for a short, careful drive to allow the system to reinitialize. Drive at moderate speeds on dry roads and perform gentle braking to ensure stability-control functions engage correctly.

Concluding: If the BAS/ESP light returns after a reset, or if the vehicle shows instability or braking concerns, stop driving and contact a qualified technician. Some issues require dealer-level software or component replacements that go beyond DIY resets.

Manufacturer-specific notes

Reset procedures and calibration steps can vary widely by manufacturer and model. Elements such as steering angle sensor recalibration, wheel-speed sensor relearns, and whether a special drive cycle is required after a reset may differ. Always consult your owner’s manual, a service bulletin, or a dealer for model-specific guidance.

Summary

The BAS ESP warning is a safety-critical signal. Resetting the light is not a substitute for proper repair. Start with a diagnostic scan to identify fault codes, address mechanical or sensor problems, then clear codes with an appropriate tool and perform any required recalibration. If in doubt, seek professional help to ensure the braking and stability systems are functioning correctly.

How to get the ESP BAS light off?

Off you restart the engine. And then you take it for a drive and the light should clear as long as it was just out of realignment.

How to fix ESP BAS light on dash?

To fix a flashing or solid ESP/BAS light, first check for low or uneven tire pressure. If that's not the issue, try the steering angle sensor reset procedure: with the engine on, turn the steering wheel all the way right, then all the way left, and back to the center. If the light persists, it may be due to a faulty steering angle sensor, wheel speed sensor, or brake switch, which requires scanning for fault codes with an OBD2 scanner to identify the specific problem. 
Initial checks and reset procedure
This video demonstrates how to reset the ESP/BAS light and scan for fault codes: 53sDashboard warning lights YouTube · Apr 6, 2025

1. Check tire pressure: Ensure all tires are properly inflated and have the same pressure. 
2. Perform a steering angle sensor reset: 
   • Start the engine with the wheels facing straight ahead. 
   • Turn the steering wheel all the way to the right until it stops. 
   • Turn the steering wheel all the way to the left until it stops. 
   • Return the steering wheel to the center position. 
   • Turn the engine off, then restart the vehicle. The light should turn off if the issue was just a sensor misalignment. 

When to seek professional help
If the light remains on after the reset, it indicates a fault code. You will need to use an OBD2 scanner to read the specific codes, as the problem could be a faulty component. 
This video explains potential causes for ESP/BAS light issues: 52sMaxTheCarGuyYouTube · Sep 13, 2023

• Faulty steering angle sensor: The sensor itself may need to be replaced. 
• Faulty wheel speed sensor: One or more of the wheel speed sensors could be defective or dirty, requiring them to be cleaned or replaced. 
• Faulty brake switch: A problem with the brake pedal switch can also trigger the light. 
• Other issues: The problem could also involve the ABS module, the ABS rings, or other active brake booster components. 

How to reset ESP warning light?

If you see the BAS ESP® light after battery replacement, resetting it is simple. Start your vehicle, turn the steering wheel fully right and left a few times while parked, and then restart the vehicle.

Is it easy to fix ESP BAS myself?

Q: Should I diagnose the ESP BAS system myself or visit a mechanic? A: Basic troubleshooting is possible—checking connections, fuses, and sensors. For in-depth repairs, especially with ABS or steering angle sensors, professional help is advised.