catalyst light · emissions warning light
This appears as part of the check engine light system when the ECU specifically detects the catalytic converter is not cleaning exhaust gases efficiently.
Have the code read to confirm it points to the catalyst (commonly P0420 or P0430) rather than a different underlying cause like a misfire, which should be fixed first since it can destroy a new catalytic converter too.
Yes short term, but a failing catalytic converter can eventually restrict exhaust flow enough to hurt performance and fuel economy, and replacement is expensive - do not leave it indefinitely.
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Descriptions are for guidance only and do not replace a workshop inspection. If you are ever unsure whether it is safe to keep driving, pull over in a safe spot.
Check Engine Light
WarningThe engine control unit has detected a fault somewhere in the engine, transmission, or emissions system and stored a trouble code (a "P" code) explaining what went wrong.
Oil Pressure Warning Light
CriticalEngine oil pressure has dropped below a safe level, meaning moving parts inside the engine may not be getting enough lubrication.
Coolant Temperature Warning Light
CriticalThe engine coolant temperature has climbed above the safe operating range - the engine is overheating.
EPC Warning Light (Electronic Power Control)
WarningFound mainly on Volkswagen, Audi, Seat, and Skoda vehicles, this light indicates a fault in the electronic throttle control system, which manages engine power delivery.
