C0281Medium urgency
Stop Lamp Switch Circuit
Chassis · Brake System
⚠️ Brake lights may not function — a serious safety and legal issue. Fix immediately.
What this means
The ABS module has detected a fault in the stop lamp (brake light) switch circuit. ABS and stability control use the brake switch signal to confirm braking.
Likely causes
- Failed stop lamp switchMost common
- Misadjusted stop lamp switchMost common
- Open wiring to switchCommon
Estimated repair cost
Stop lamp switch$20 – $80
Switch adjustment$30 – $80
Wiring repair$80 – $200
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Frequently asked questions about C0281
What does C0281 mean?
The ABS module has detected a fault in the stop lamp (brake light) switch circuit. ABS and stability control use the brake switch signal to confirm braking.
Is C0281 serious?
Brake lights may not function — a serious safety and legal issue. Fix immediately.
How much does it cost to fix C0281?
Repair costs for C0281 range from $20 – $80 depending on the root cause and your vehicle.
Can I drive with C0281?
You can drive short distances but should have it repaired within 1–2 weeks to prevent further damage.