Collision Mitigation
This is the Collision Mitigation Brake System (CMBS) Indicator symbol. It is a radar-based system that can warn a driver of a potential collision or even apply the brakes on its own to prevent one. These systems are all moving in the direction of automatic braking, which all manufacturers have promised to install in all passenger vehicles by roughly 2020.
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- Otherwise you can return to our main Text Symbols page and scan again!
The light comes on if the system has been turned off, if the radar sensor is dirty or blocked, or if there is a fault in the system. In the second case, a simple car wash may restore the system’s function. In the last case, take the vehicle to your dealer or authorized service center for diagnosis and repair.
These systems continue to evolve. Click this link for more on Collision Avoidance and Auto Braking systems. This link goes to yet another related system with an entirely different name, Intelligent Brake Assist.
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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.
These posts are 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.
Technology is always changing and what is current and accurate today may be literally out-of-date and inaccurate tomorrow.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.
The author has 25 years of automotive experience and has assembled the most extensive collection of symbols and warning lights anywhere (over 1,000!) and can help you open and start any keyless start car with a dead key fob battery. BA, St. Joseph’s College, ME: MS, Rensselaer Polytechnic Institute, NY
These symbols are Parking Brake Indicator 
If any of these symbols are flashing, it indicate that service is necessary. Also, the first image to the right with the wrench or spanner added is used with Electronic Parking Brakes and indicates that it needs to be serviced. The car can be driven, but be sure to have it serviced as soon as possible in order to maintain the parking brake’s availability.
The letter P is shown above for “Park”. It is inside the circle in brackets, which is always used to represent brakes. The symbol holding the whole word is also a park brake indicator, but may indicate an electric park brake fault. 
Note that the symbol to the right is associated, and may be serious. 
This is the Catalytic Converter Warning 
These are Distance Warning Indicator or Vehicle Detection Indicator 
Note that the symbols to the right are very similar and have a similar function. 
The image of a steaming hot cup of coffee is an Attention Assist Indicator 
And immediately after saying that color does not indicate a fault in the alert system, we find this symbol, in 
Another manufacturer adds the exclamation point, as seen in the symbol to the right, if the vehicle detects that it is being driven erratically. An audible tone is also added and likely a text message. The tone and message will be repeated if the driving pattern continues.
Finally, we have this version. Updated systems are able to detect a driver nodding off at the wheel! And so this symbol, which is a bell with three letter Zs, is shown and accompanied by a warning tone. This will continue until the driver turns it off. This part of the system is also limited by the ability to see the driver’s eyes. See more on this subject 
These are all Water in Fuel Indicator 
Each image includes at least a drop of water or wavy lines or both. Other images are meant to resemble canisters. These filters need to be serviced periodically, and one of these lights serves to tell you when. This filter system is termed a Diesel Fuel Conditioner Module (
These are variants of Exhaust Particulate Filter Warning 
The symbols to the left indicates that the Diesel Exhaust Fluid (DEF) (AdBlue) is low. The fluid creates a catalytic reaction that removes particles from the exhaust. When low, the fluid must be topped off. The fluid will need to be replaced if it is contaminated. To the right is another particle filter symbol. It may appear with an exclamation point in it indicating a failure of the system or that engine emissions are too high. Contact your dealer or authorized service center in order to properly address any failures.
Note that the diesel symbols seen to the right may be in play as well.