The catalytic converter reduces harmful exhaust emissions. When its efficiency drops, this warning appears — often alongside the check engine light. Failed cats cause failed emissions tests and reduce performance.
🚗 Can You Continue Driving?
Yes, but avoid high-load driving.
🔧 Repair Difficulty
Medium to High
⚠️ Possible Causes
Age and wear
engine misfires damaging the catalyst
oil burning contaminating the cat
coolant leak into exhaust
physical damage
✅ Recommended Actions
1Have diagnostic codes read to confirm catalytic converter fault.
2Avoid engine misfires that can destroy the converter rapidly.
3Plan replacement soon.
🚗 Common in These Vehicles
Not specified
Related Symbols
Check Engine Light
One of the most common warning lights — can indicate many different issues.
Attention RequiredEngine Temperature Warning
Engine is overheating. Stop driving immediately to prevent severe damage.
Immediate ActionOil Pressure Warning
Critical low oil pressure. Stop the engine immediately.
Immediate ActionPower Steering Warning
Power steering system fault. Steering will require more effort.
Attention Required