Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Mazda 3 BaseFACTORY OEM SERVICE PROCEDURE
Symptom Troubleshooting - Dynamic Stability Control (DSC)
- No. 1 Any Of The Following Lights Do Not Illuminate With The Ignition On: (Abs Warning Light, Brake System Warning Light, TCS/DSC Indicator Light And/Or DSC Off Indicator Light)
- No. 2 Any Of The Following Lights Stay On: (Abs Warning Light, TCS/DSC Indicator Light And/Or DSC Off Indicator Light)
- No. 3 Brake System Warning Light Stay On
- No. 4 There Is A Malfunction In The System Even Though Abs Warning Light, Brake System Warning Light, TCS/DSC Indicator Light And DSC Off Indicator Light Do Not Illuminate
- No. 5 Abs Or TCS*1 Operates Frequently/TCS Does Not Work Correctly *1: DSC System Function Contains Traction Control Function, TCS/DSC Indicator Light Goes On And Off While TCS Operates
- No. 6 DSC*2 Operates Frequently/DSC Does Not Work Correctly *2: TCS/DSC Indicator Light Goes On And Off While DSC Operates
- No. 7 Hill Launch Assist (HLA) Operates Even On A Downhill/Hill Launch Assist (HLA) Does Not Operate On A Slope
- No. 8 Auto Hold Does Not Work
- Precaution
- Symptom Troubleshooting
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.