Vitara Brake Light Glitch Linked to System Errors

I had a similar issue with my 2019 Suzuki S-Cross Hybrid and can share my experience as someone with some basic car maintenance knowledge. The brake light and error messages turned out to be a simple fix. The brake switch was getting false readings because dirt and debris had accumulated around the pedal mechanism. This caused electrical issues with both the brake light and vehicle safety systems. No workshop visit needed in my case. After checking online documentation, I found the solution was just cleaning the brake pedal area thoroughly. The brake switch needs clean contact to function properly. After cleaning, all error messages disappeared and the brake light started working normally again. For your vehicle safety, make sure to verify: Is the brake pedal movement smooth? Can you hear a clicking sound when pressing/releasing the brake? Are there any visible debris around the pedal mechanism? To help diagnose your specific case, could you share: The exact error codes from your system? When did these issues first appear? Have you noticed any changes in brake pedal feel? Does this happen more often in certain weather conditions? This might be a different root cause than mine, but sharing these details would help narrow down the electrical issue you are experiencing.

Thanks for the detailed explanation of your experience. Just had the 80000km service done last month, and these issues started appearing right after. The error codes show P0504 and P0571. The brake pedal feels normal with consistent pressure, and I do hear the regular click when pressing it. This happens regardless of weather conditions. What concerns me is that both the brake light and system errors started simultaneously. The service technician might have disturbed something while working on the car. Will have them check the brake switch connections and pedal mechanism first, since your solution sounds like a logical starting point.

Thanks for those additional details about your Vitara. The timing with the 80000km service is telling. Since the brake pedal operation feels normal but you are getting those specific error codes, this definitely points toward an electrical issue rather than a mechanical brake problem. In my case with the S-Cross, after thoroughly cleaning around the brake switch, I also had to check the electrical connections. The service work likely disturbed the brake switch wiring harness or connector. These automotive switches are sensitive to any slight misalignment. Those error codes (P0504/P0571) specifically relate to brake switch signal correlation, which matches what I experienced. The switch sends conflicting signals to the car computer, triggering both the brake light and system warnings. Some checks you can do: Inspect the brake switch connector for proper seating, Look for any pinched or disturbed wiring near the pedal, Verify the brake switch alignment with the pedal arm If basic checks dont resolve it, the brake switch itself may need replacement. The part costs around 50€ and labor should be minimal since its easily accessible. Given your symptoms mirror mine so closely, have the service center focus on the brake switch area first before looking at more complex issues.

Thanks for the input. After reading about these similar cases, I will check the brake switch connections first since its the most likely culprit given the timing with my recent service. Just called the workshop and scheduled a checkup for next week. They quoted 1 hour labor plus parts if the brake switch needs replacement. Total cost should be under 150€ if thats the case. Will update once they diagnose the exact cause. Really hoping its just disturbed wiring or debris around the brake pedal mechanism rather than a more serious brake system issue. Vehicle safety is crucial, so better have it properly checked by professionals even if it turns out to be a simple fix. Either way, this helped narrow down where to start looking. The error codes and symptoms matching other cases gives me confidence its likely an electrical rather than mechanical brake problem.