Catalytic Converter Warning Symbol

Catalytic Converter

This is the Catalytic Converter Warning symbol. The image, which looks like flames, heat or wavy lines rising from a pipe, indicates an overheated, damaged or malfunctioning catalytic converter. The converter is vital to the proper operation of the engine, so some vehicles may reduce the engine’s power automatically. And of course, it will be very hot. The vehicle will require service immediately.

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In newer vehicles, the sensors reading the catalytic converter trigger the Check Engine Light, one of hundreds of functions covered by the that particular warning symbol.

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The information on this website is provided for information sharing purposes only, and should not be used in lieu of an OEM service manual or factory authorized service procedure. We are not in the auto repair business nor do we publish automotive service manuals. Nothing we include on these pages and posts has been reviewed, approved or authorized by any vehicle manufacturer.

Remember that only proper service and repair procedures will ensure the safe and reliable operation of your car. In addition, proper safety procedures and precautions, such as the use of safety goggles, the right tools and the equipment should be followed at all times to eliminate the possibility of personal injury or improper service which could damage the vehicle or compromise its safety.

Technology is always changing and what is current and accurate today may be literally out-of-date and inaccurate tomorrow. And when it comes to the current state of flux in the auto industry, nothing is more true.